Research Support
Grant: #RQ65-UC-21-3 Investigators:Orkwis, Paul 08-01-2021 -11-30-2022 Ohio Department of Higher Education Machine Learning Approaches in Computational Fluid Mechanics Role:PI 52260.00 Active Level:Ohio, State of
Grant: #RQ-UC-16-15-OC-AFRL / FA8650-12-2-7248 Investigators:Orkwis, Paul 10-01-2016 -12-31-2016 Air Force Research Laboratory High Order Chimera Discontinuous Galerkin Fluid Solver Development Role:PI $15,715.00 Active Level:Federal
Grant: #USAF CRADA FY-DAY-LAB# 16-266-RQ-01 Investigators:Orkwis, Paul; Turner, Mark 06-16-2016 -06-15-2021 Air Force Research Laboratory Development of Algorithms for High Order Accurate CFD Simulations Role:PI $.00 Active Level:Federal
Grant: #ODHE RAPIDS SW Ohio Investigators:Neff, Glenda; Orkwis, Paul 04-01-2016 -06-30-2018 Ohio Department of Higher Education Additive and Advanced Manufacturing Infrastructure and Training to Support in Demand Occupations in Southwest Ohio Role:PI $418,144.00 Active Level:State of Ohio
Grant: #SICHOP 2016 Investigators:Orkwis, Paul; Rozier, Kristin 01-01-2016 -12-31-2016 National Aeronautics and Space Administration UC CubeCats High Altitude Balloon Launch (Craig Utz) Role:PI $1,477.00 Awarded Level:Federal
Grant: #PO 200-14-14R51217_RFQ 98A-012116 Investigators:Orkwis, Paul 01-01-2016 -12-31-2016 General Electric Aviation Turbomachinery CFD Methods for Compressor Modeling and Aeroacoustics (2016 USA Program) Role:PI $120,000.00 Awarded Level:Industry
Grant: #GE USA_PO 14R51217_RFQ 98A-012116 Investigators:Orkwis, Paul 01-01-2016 -12-31-2016 General Electric Aviation Turbomachinery CFD Methods for Compressor Modeling and Aeroacoustics (2016 USA Program) Role:PI $120,000.00 Active Level:Industry
Grant: #GESS-ARTS Teaming Agreement Investigators:Orkwis, Paul 11-01-2015 -10-31-2020 Trident Vantage Systems, LLC GESS-ARTS Teaming Agreement Role:PI $.00 Active Level:Industry
Grant: #PO 200-14-14N44250 / 98A-030415 Investigators:Orkwis, Paul 01-01-2015 -12-31-2015 General Electric Aviation Turbomachinery CFD Methods for Compressor Modeling and Aeroacoustics (GE USA 2015) Role:PI $150,000.00 Awarded Level:Industry
Grant: #PO 200-1J-14J32330 - RFQ 535-USA2014 Investigators:Orkwis, Paul 02-01-2014 -12-31-2014 General Electric - GE Transportation - Aircraft Division Turbomachinery CFD Methods for Compressor Off-Design Modeling and Turbine Gas-Side Temperature Prediction and Aeroacoustics Role:PI $247,000.00 Awarded Level:Industry
Grant: #13-S2604-04-C20 / FA8650-10-D-3037 Investigators:Orkwis, Paul; Turner, Mark 09-16-2013 -04-07-2014 Air Force Research Laboratory CFD Simulation and Modeling Support of AFRL SWBLI Experiments Role:PI $50,000.00 Awarded Level:Federal
Grant: #200-18-12H13121 Investigators:Orkwis, Paul 01-01-2013 -12-31-2013 General Electric Aviation Turbomachinery CFD Methods for Compressor Off-Design Modeling and Turbine Gas-Side Role:PI $275,000.00 Active Level:Industry
Grant: #TECH 12-096 Investigators:Orkwis, Paul 05-07-2012 -05-07-2015 Ohio Department of Development General Electric Aviation Research Center RDCAP Role:PI $500,000.00 Active Level:State of Ohio
Grant: #200-18-14Q16015 Investigators:Orkwis, Paul 03-22-2012 -12-31-2012 General Electric Aviation Turbomachinery CFD Methods for Compressor Off-Design Modeling and Turbine Gas-Side Temperature Prediction and Aeroacoustics Role:PI $200,000.00 Active Level:Industry
Grant: #AFRL-0000002588 Investigators:Orkwis, Paul; Turner, Mark 01-01-2012 -09-30-2012 Air Force Research Laboratory 3D CFD Simulations to Support AFRL Mixed Compression Inlet Projects Role:PI $146,300.00 Closed Level:Federal
Grant: #200-18-14A32038 Investigators:Orkwis, Paul 01-01-2011 -12-31-2012 General Electric Aviation Turbomachinery CFD Methods for Compressor Off-Design Modeling and Turbine Bas-Side Temperature Prediction and Aeroacoustics Role:PI $302,000.00 Active Level:Industry
Grant: #AFRL-0000001289 Investigators:Orkwis, Paul; Turner, Mark 03-01-2010 -12-31-2011 Air Force Research Laboratory 3D CFD Simulations and Uncertainty Analysis to Support AFRL Mixed Compression Inlet Projects Role:PI $271,493.00 Closed Level:Federal
Grant: #PO#AFRL-0000001046 Investigators:Orkwis, Paul; Turner, Mark 10-19-2009 -11-30-2009 Department of the Air Force 2D CFD Simulations to Support Design of AFRL Glass Inlet Role:PI $10,000.00 Closed Level:Federal
Grant: #AFRL-000000441 Investigators:Orkwis, Paul; Turner, Mark 12-22-2008 -01-26-2010 Department of the Air Force Computational Fluid Dynamic Calculations to Support Shock Wave Boundary Layer Interaction Test Program in TGF Role:PI $146,001.00 Closed Level:Federal
Grant: #USAF-3446-26-SC-0001 Investigators:Orkwis, Paul; Turner, Mark 04-07-2008 -11-06-2008 Department of the Air Force Calculations for Experimental Aircraft Inlet Design Role:PI $30,000.00 Closed Level:Federal
Grant: #VA-1-05 Investigators:Orkwis, Paul 06-01-2005 -05-31-2006 Ohio Board of Regents Modeling of Flow Control Devices for System Analysis and Design Role:PI $52,188.00 Closed Level:State of Ohio
Grant: #FA95500510175/#1 Investigators:Orkwis, Paul 03-01-2005 -12-31-2005 Department of the Air Force Advanced Neural Network Modeling of Synthetic Jet Flow Fields Role:PI $29,999.00 Closed Level:Federal
Grant: #1003775 Investigators:Orkwis, Paul 08-01-2003 -04-30-2006 National Aeronautics and Space Administration Advanced Turbine Cooling and Thermal Management Systems Role:PI $245,521.00 Closed Level:Federal
Grant: #NCE Investigators:Orkwis, Paul 08-01-2003 -09-30-2004 National Aeronautics and Space Administration Advanced Turbine Cooling and Thermal Management Systems Role:PI $197,500.00 Closed Level:Federal
Grant: #F49620-02-1-0092/2 Investigators:Orkwis, Paul 01-01-2002 -12-31-2004 Department of the Air Force Characterization and Modeling of Synthetic Jet Flow Fields Role:PI $188,453.00 Closed Level:Federal
Grant: #OSP02124 Investigators:Orkwis, Paul 10-01-2001 -03-31-2002 Department of the Air Force Unsteady Aerodynamic Simulations of Compressor Flow Fields Role:PI $13,867.00 Closed Level:Federal
Grant: #PR-UC-01-17 Investigators:Orkwis, Paul 07-01-2001 -06-30-2004 Ohio Board of Regents Flow Physics of Incomplete Combustion Product Interaction with Film Cooling Holes Role:PI $127,476.00 Closed Level:State of Ohio
Grant: #2001014H5639 Investigators:Orkwis, Paul 09-01-2000 -12-31-2010 General Electric Aviation Turbine Hot Streak Analysis and Model Development Role:PI $1,332,500.00 Closed Level:Industry
Grant: #14H45640/09 Investigators:Orkwis, Paul 09-01-2000 -08-31-2005 General Electric Company Prediction of Compressor Off Design Performance Role:PI $286,500.00 Closed Level:Industry
Grant: #528566 Investigators:Orkwis, Paul 02-01-2000 -07-31-2002 Department of Energy Improved Performance and Durability in Gas Turbines through Airfoil Clocking and Hot Streak Management Role:PI $93,920.00 Closed Level:Federal
Grant: #CFD-7 Investigators:Orkwis, Paul 09-16-1999 -03-31-2002 Ohio Board of Regents Graduate Support for Integrated Video Network Teaching Role:PI $29,029.00 Closed Level:State of Ohio
Grant: #DAAD199910242 Investigators:Orkwis, Paul 07-01-1999 -12-31-1999 Department of the Army Secondary Saddle Points and Vortex Asymmetry in Three Dimensional Flows Role:PI $9,283.00 Closed Level:Federal
Grant: #PR-AFIT-99-07 Investigators:Orkwis, Paul 06-14-1999 -01-15-2002 Ohio Board of Regents High Cycle Fatigue Unsteady Aerodynamic Analysis Improvements and Flow Physics Role:PI $153,545.00 Closed Level:State of Ohio
Grant: #CCRP-98-1-008 Investigators:Orkwis, Paul 10-01-1998 -08-31-1999 Ohio Aerospace Institute Source Term Modeling of Unsteady, Complex Turbomachinery Flows Role:PI $30,000.00 Closed Level:Private Non-Profit
Publications
Peer Reviewed Publications
Orkwis P.; Wukie N. (01-01-2019. ) Coarsening and filtering for absorbing layers in a discontinuous galerkin method.AIAA Scitech 2019 Forum, , More Information
Orkwis P.; Yoder D. (01-01-2019. ) On the use of optimization techniques for turbulence model calibration.AIAA Scitech 2019 Forum, , More Information
Andersson N.; Lindblad D.; Orkwis P.; Wukie N. (01-01-2019. ) Nonreflecting boundary conditions for the euler equations in a discontinuous galerkin discretization.AIAA Scitech 2019 Forum, , More Information
Kalagotla D.;Orkwis P.;Turner M. (01-01-2018. ) Modeling particle drag in accelerating flows with implications for SBLI in PIV-a numerical analysis.2018 Fluid Dynamics Conference, , More Information
Wukie N.;Turner M.;Orkwis P. (01-01-2018. ) A neumann pressure outlet boundary condition for compressible flows.2018 Fluid Dynamics Conference, , More Information
Ugolotti M.;Wukie N.;Turner M.;Orkwis P.D. (01-01-2018. ) Discrete-adjoint solver tests and consistency analysis for discontinuous galerkin discretization.2018 Fluid Dynamics Conference, , More Information
Wukie N.A.;Orkwis P.D. (11-12-2017. ) Software engineering for efficient development of flexible numerical software.Proceedings of SE-CoDeSE 2017: 1st International Workshop on Software Engineering for High Performance Computing in Computational and Data-Enabled Science and Engineering - Held in conjunction with SC 2017: The International Conference for High Performance Computing, Networking, Storage and Analysis, , 13-17 More Information
Orkwis P.; Wukie N. (01-01-2017. ) A p-Poisson wall distance approach for turbulence modeling .23rd AIAA Computational Fluid Dynamics Conference, 2017, ,
Orkwis P.; Schrock C.; Wukie N. (01-01-2017. ) A Chimera-based, zonal discontinuous Galerkin method .23rd AIAA Computational Fluid Dynamics Conference, 2017, ,
Wukie N.;Orkwis P. (01-01-2016. ) On fully-implicit solutions of the time-linearized euler equations in a DG-Chimera solver.22nd AIAA/CEAS Aeroacoustics Conference, 2016, , More Information
Clark K.;Orkwis P. (01-01-2016. ) Numerical comparison of symmetric and asymmetric supersonic wind tunnels .46th AIAA Fluid Dynamics Conference, ,
Wukie N.;Orkwis P.;Turner M. (01-01-2016. ) An implicit, discontinuous Galerkin Chimera solver using automatic differentiation .54th AIAA Aerospace Sciences Meeting, , 0 ,
Duncan S.A.;Orkwis P.D.;Ugolotti M. (01-01-2016. ) CFD investigation of supersonic bleed with discretely modeled holes in Cambridge wind tunnel .54th AIAA Aerospace Sciences Meeting, ,
Orkwis P.; Turner M.; Wukie N. (01-01-2016. ) A fully-implicit, Giles-type nonreflecting boundary condition in a DG-Chimera turbomachinery solver .46th AIAA Fluid Dynamics Conference, ,
Duncan S.;Orkwis P.;Ugolotti M. (01-01-2016. ) CFD investigation of supersonic bleed with discretely modeled holes in cambridge wind tunnel .46th AIAA Fluid Dynamics Conference, ,
Porter C.;Orkwis P.;Goerig T.;Wood T.;Wcjno J. (01-01-2016. ) In-duct assessment of a linearized unsteady navier-stokes scheme for compressor tone noise.22nd AIAA/CEAS Aeroacoustics Conference, 2016, , More Information
Galbraith M.;Benek J.;Orkwis P.;Turner M. (09-02-2015. ) A discontinuous Galerkin scheme for Chimera overset viscous meshes on curved geometries.Computers and Fluids, , 119 ,176-196 More Information
Wukie N.A.;Orkwis P.D.;Turner M.G.;Duncan S. (01-01-2015. ) Simulations and models for aspiration in a supersonic flow using OVERFLOW.AIAA Journal, , 53 (7 ) ,2052-2056 More Information
Friedlander D.J.;Georgiadis N.J.;Turner M.G.;Orkwis P.D. (01-01-2015. ) Numerical simulations of the University of Michigan shock boundary-layer interaction experiments.AIAA Journal, , 53 (5 ) ,1134-1145 More Information
Oorebeek J.M.;Babinsky H.;Ugolotti M.;Orkwis P.;Duncan S. (01-01-2015. ) Experimental and computational investigations of a normal-hole-bled supersonic boundary layer.AIAA Journal, , 53 (12 ) ,3726-3736 More Information
Galbraith M.;Benek J.;Orkwis P.;Turner M. (07-02-2014. ) A Discontinuous Galerkin Chimera scheme.Computers and Fluids, , 98 ,27-53 More Information
Galbraith M.;Orkwis P.;Benek J. (01-01-2014. ) A 3-D discontinuous Galerkin Chimera overset method .52nd Aerospace Sciences Meeting, ,
Benek J.; Galbraith M.; Orkwis P. (01-01-2014. ) A 3-D Discontinuous Galerkin Chimera overset method .52nd AIAA Aerospace Sciences Meeting - AIAA Science and Technology Forum and Exposition, SciTech 2014, ,
Knapke R.D.;Turner M.G.;Galbraith M.;Orkwis P. (01-01-2014. ) A high-order implict harmonic balance method for turbomachinery applications .15th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC 2014, ,
Goerig T.; Orkwis P.; Wojno J.; Wukie N. (01-01-2014. ) Evaluation of a time-linearized navier-stokes method for booster tone noise analyses .20th AIAA/CEAS Aeroacoustics Conference, ,
Oorebeek J.M.;Babinsky H.;Ugolotti M.;Orkwis P.;Duncan S. (01-01-2014. ) Comparison of experimental and computational flow structure investigations of a normal-hole bled sup.32nd AIAA Applied Aerodynamics Conference, , More Information
Ratzlaff J.;Orkwis P.;Noll C.;Steuber G.;Saeidi R.;Athans R. (12-17-2013. ) Uncertainty in computed time average gas-side temperatures for an HPT rotor with purge cavities.Proceedings of the ASME Turbo Expo, , 6 B , More Information
Lee D.;Orkwis P.D.;Tsung F.L.;Magnuszewski W.;Noll C.;Scott McNulty G. (11-01-2013. ) Tip flow unsteadiness and blade row interactions for a low-speed compressor rotor.Journal of Propulsion and Power, , 29 (6 ) ,1346-1356 More Information
Benek J.; Galbraith M.; Orkwis P. (09-13-2013. ) Hole cutting of curved discontinuous galerkin chimera overset meshes using a direct cut method .21st AIAA Computational Fluid Dynamics Conference, ,
Garmann D.; Orkwis P.; Visbal M. (08-19-2013. ) Investigation of aspect ratio and dynamic effects due to rotation for a revolving wing using high-fi .51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013, ,
Friedlander D.; Georgiadis N.; Orkwis P.; Turner M. (08-19-2013. ) Computational fluid dynamic (CFD) analyses of the university of Michigan's shock boundary-layer inte .51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013, ,
Benek J.; Galbraith M.; Knapke R.; Orkwis P. (08-19-2013. ) A Discontinuous Galerkin Chimera scheme with implicit artificial boundaries .51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013, ,
Galbraith M.; Knapke R.; Orkwis P.; Turner M. (08-19-2013. ) An implicit Harmonic balance method with a Discontinuous Galerkin spatial scheme .51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013, ,
Orkwis P.D.;Turner M.G.;Apyan A.;Flenar K.;Duncan S.;Wukie N.;Benek J. (08-19-2013. ) Modeling and simulation of bleed holes in the presence of shock wave/boundary layer interaction .51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013, ,
Garmann D.;Visbal M.;Orkwis P. (04-30-2013. ) Comparative study of implicit and subgrid-scale model large-eddy simulation techniques for low-Reyno.International Journal for Numerical Methods in Fluids, , 71 (12 ) ,1546-1565 More Information
Garmann D.J.;Visbal M.R.;Orkwis P.D. (03-19-2013. ) Three-dimensional flow structure and aerodynamic loading on a revolving wing.Physics of Fluids, , 25 (3 ) , More Information
Garmann D.J.;Visbal M.R.;Orkwis P.D. (12-01-2012. ) Numerical investigation of the three-dimensional flow structure about a revolving wing.American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM, , 1 (PARTS A AND B ) ,1581-1592 More Information
Garmann D.J.;Visbal M.R.;Orkwis P.D. (12-01-2012. ) Three-dimensional flow structure and aerodynamic loading on a low aspect ratio, revolving wing .42nd AIAA Fluid Dynamics Conference and Exhibit 2012, ,
Wukie N.A.;Orkwis P.D.;Turner M.G.;Duncan S. (12-01-2012. ) Comparison of simulations and models for aspiration in a supersonic flow using OVERFLOW.50th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition, , More Information
Apyan A.;Orkwis P.;Turner M.;Duncan S.;Benek J.;Tinnaple J. (12-01-2012. ) Mixed compression inlet simulations with aspiration.50th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition, , More Information
DeBonis J.R.;Oberkampf W.L.;Wolf R.T.;Orkwis P.D.;Turner M.G.;Babinsky H.;Benek J.A. (04-01-2012. ) Assessment of computational fluid dynamics and experimental data for shock boundary-layer interactio.AIAA Journal, , 50 (4 ) ,891-903 More Information
Galbraith M.C.;Orkwis P.D.;Benek J.A. (12-13-2010. ) Automated quadrature-free discontinuous Galerkin method with a tailored recovery formulation .48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition, ,
Galbraith D.;Galbraith M.;Turner M.;Orkwis P.;Apyan A. (12-13-2010. ) Preliminary numerical investigation of a mach 3 inlet configuration with and without aspiration and .48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition, ,
Galbraith D.S.;Turner M.G.;Orkwis P.D.;Galbraith M.C.;Driscoll J.F.;Eagle E. (12-02-2010. ) Design of a glass supersonic wind tunnel experiment for mixed compression inlet investigations .40th AIAA Fluid Dynamics Conference, ,
DeBonis J.;Oberkampf W.;Wolf R.;Orkwis P.;Turne M.;Babinsky H. (01-01-2010. ) Assessment of CFD models for shock boundary-layer interaction.28th AIAA Applied Aerodynamics Conference, , 1 , More Information
Galbraith M.C.;Orkwis P.D.;Benek J.A. (12-01-2009. ) Multi-row micro-ramp actuators for shock wave boundary-layer interaction control .47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, ,
Galbraith M.;Orkwis P. (12-01-2008. ) Transport equation for deterministic stresses .46th AIAA Aerospace Sciences Meeting and Exhibit, ,
Ratzlaff J.;Orkwis P.D.;Noll C.;Steuber G. (12-01-2008. ) Analysis of lumped deterministic source terms and their sub-components in a stage 1 high pressure tu.Proceedings of the ASME Turbo Expo, , 6 (PART C ) ,2693-2703 More Information
Lee D.;Orkwis P.;Fu-Lin Tsung;Magnuszewski W.;Noll C. (12-01-2008. ) Effect of temporal accuracy on the numerical prediction of an isolated transonic rotor at near stall.Proceedings of the ASME Turbo Expo, , 6 (PART A ) ,719-730 More Information
Lee D.;Orkwis P.D.;Tsung F.L.;Magnuszewski W.;Noll C.;McNulty G.S. (12-01-2008. ) Numerical investigation on the effects of self-excited tip flow unsteadiness and blade row interacti.Proceedings of the ASME Turbo Expo, , 6 (PART A ) ,681-694 More Information
Daviaux T.D.;Orkwis P.D. (12-01-2006. ) On the grid insensitivity of an advanced neural network based model for synthetic jet flow fields .Collection of Technical Papers - 44th AIAA Aerospace Sciences Meeting, , 6 ,3832-3844
Wagner R.;Dehmer J.;Orkwis P.D. (12-01-2006. ) On the use of hot 'coolant' in film cooling effectiveness studies .Collection of Technical Papers - 44th AIAA Aerospace Sciences Meeting, , 1 ,302-320
Lukovic B.;Orkwis P.D.;Turner M.G.;Sekar B. (07-01-2006. ) Neural network modeling of deterministic unsteadiness source terms.AIAA Journal, , 44 (7 ) ,1609-1616 More Information
Ratzlaff J.;Orkwis P.D.;Sekar B. (11-23-2005. ) A numerical study of 3D turbulent cooling jet interaction over a range of blowing ratios, turbulence.Proceedings of the ASME Turbo Expo, , 3 PART A ,689-705 More Information
Orkwis P.; Ratzlaff J.; Sekar B. (12-01-2004. ) A numerical study of 3D turbulent cooling jet interaction over a range of blowing ratios .34th AIAA Fluid Dynamics Conference and Exhibit, ,
Maple R.;King P.;Orkwis P.;Wolff J. (01-20-2004. ) Adaptive harmonic balance method for nonlinear time-periodic flows.Journal of Computational Physics, , 193 (2 ) ,620-641 More Information
Orkwis P.;Filz C. (12-01-2003. ) Characterization of dual two dimensional synthetic jets in cross flow at low Mach number .33rd AIAA Fluid Dynamics Conference and Exhibit, ,
Filz C.;Lee D.;Orkwis P.;Turner M. (12-01-2003. ) Modeling of two dimensional directed synthetic jets using neural network-based deterministic source .33rd AIAA Fluid Dynamics Conference and Exhibit, ,
Maple R.;King P.;Wolff J.;Orkwis P. (01-01-2003. ) Split-domain harmonic balance solutions to Burger's equation for large-amplitude disturbances.AIAA Journal, , 41 (2 ) ,206-212 More Information
Lukovic B.;Orkwis P.;Turner M. (12-01-2002. ) Modeling unsteady cavity flows with translating walls .32nd AIAA Fluid Dynamics Conference and Exhibit, ,
Lukovic B.; Orkwis P.; Sekar B.; Turner M. (12-01-2002. ) Effect of cavity L/D variations on neural network-based deterministic unsteadiness source terms .40th AIAA Aerospace Sciences Meeting and Exhibit, ,
Orkwis P.D.;Turner M.G.;Barter J.W. (01-01-2002. ) Linear deterministic source terms for hot streak simulations.Journal of Propulsion and Power, , 18 (2 ) ,383-389 More Information
Sondak D.L.;Gupta V.;Orkwis P.D.;Dorney D.J. (01-01-2002. ) Effects of blade count on linearized and nonlinear hot streak clocking simulations.Journal of Propulsion and Power, , 18 (6 ) ,1273-1279 More Information
Godavarty D.; Orkwis P. (12-01-2001. ) Investigating the relationship between flow field saddles and vortex asymmetry .39th Aerospace Sciences Meeting and Exhibit, ,
Lukovic B.;Gangwar A.;Orkwis P.D.;Sekar B. (12-01-2001. ) Modeling unsteadiness in steady cavity simulations part II: Neural network modeling .39th Aerospace Sciences Meeting and Exhibit, ,
Gangwar A.;Lukovic B.;Orkwis P.;Sekar B. (12-01-2001. ) Modeling unsteadiness in steady cavity simulations part I: Parametric solutions .39th Aerospace Sciences Meeting and Exhibit, ,
Dorney D.; Gupta V.; Orkwis P.; Sondak D. (12-01-2001. ) Effects of blade count on hot streak clocking simulations using linearized and nonlinear methods .37th Joint Propulsion Conference and Exhibit, ,
Hunter S.; Orkwis P. (01-01-2000. ) Endwall cavity flow effects on gaspath aerodynamics in an axial flow turbine: Part II-Source term mo.Proceedings of the ASME Turbo Expo, , 1 , More Information
Orkwis P.;Turner M.;Barter J. (01-01-2000. ) Linear deterministic source terms for hot streak simulations.Proceedings of the ASME Turbo Expo, , 1 , More Information
Disimile P.J.;Orkwis P.D. (01-01-1998. ) Sound-pressure-level variations in a supersonic rectangular cavity at yaw.Journal of Propulsion and Power, , 14 (3 ) ,392-398 More Information
Orkwis P.D.;Sekar B.;Chakravarthy S.;Peroomian O. (01-01-1998. ) Comparison of three Navier-Stokes equation solvers for supersonic open cavity simulations.AIAA Journal, , 36 (5 ) ,865-867 More Information
Orkwis P.;Walker B.;Jeng S.;Khosla P.;Slater G.;Simitses G. (12-01-1997. ) Horizontal and vertical integration of design: An approach to curriculum revision .International Journal of Engineering Education, , 13 (3 ) ,220-226
Disimile P.J.;Orkwis P.D. (01-01-1997. ) Effect of yaw on pressure oscillation frequency within Rectangular cavity at mach 2.AIAA Journal, , 35 (7 ) ,1233-1235 More Information
Tarn C.;Orkwis P.;Disimile P. (01-01-1997. ) Variations in flow field physics caused by algebraic turbulence model modifications for a supersonic .35th Aerospace Sciences Meeting and Exhibit, ,
Orkwis P.;Sengupta R.;Davis S. (01-01-1997. ) Flow field saddles and their relation to vortex asymmetry.Computers and Fluids, , 26 (5 ) ,505-524 More Information
Walker B.;Wade J.;Orkwis P.;Jeng S.;Khosla P.;Slater G. (01-01-1997. ) Development of a proposed aerospace engineering curriculum for the twenty-first century .35th Aerospace Sciences Meeting and Exhibit, ,
Tam C.J.;Orkwis P.D.;Disimile P.J. (03-01-1996. ) Comparison of Baldwin-Lomax turbulence models for two-dimensional open cavity computations .AIAA Journal, , 34 (3 ) ,629-631
Sengupta R.;Orkwis P.D. (01-01-1996. ) An efficient numerical technique for capturing saddle points of dispersion relations .Theroretical Fluid Mechanics Conference, ,
Vanden K.;Orkwis P. (01-01-1996. ) Comparison of numerical and analytical Jacobians.AIAA Journal, , 34 (6 ) ,1125-1129 More Information
Sengupta R.;Orkwis P. (01-01-1996. ) Proving algorithm symmetry for flows exhibiting symmetry breaking.AIAA Journal, , 34 (10 ) ,2193-2195 More Information
Dusing D.;Orkwis P. (01-01-1996. ) Numerical issues affecting vortex asymmetries computed with the conical Navier-Stokes equations.Computers and Fluids, , 25 (3 ) ,319-334 More Information
Yoder D.;Georgiadis N.;Orkwis P. (01-01-1996. ) Implementation of a two-equation k-? turbulence model in NPARC .34th Aerospace Sciences Meeting and Exhibit, ,
Disimile P.; Orkwis P.; Tam C. (01-01-1996. ) Supersonic open cavity flow physics ascertained from algebraic turbulence model simulations .34th Aerospace Sciences Meeting and Exhibit, ,
Tam C.;Orkwis P.;Disimile P. (01-01-1996. ) Algebraic turbulence model simulations of supersonic open-cavity flow physics.AIAA Journal, , 34 (11 ) ,2255-2260 More Information
Walker B.;Jeng S.;Orkwis P.;Slater G.;Khosla P.;Simitses G. (12-01-1995. ) Educating aerospace engineers for the twenty-first century: results of a survey .ASEE Annual Conference Proceedings, , 1 ,66-75
Orkwis P.;Jeng S.;Walker B.;Slater G.;Khosla P.;Simitses G. (12-01-1995. ) Designing a new aerospace engineering curriculum: the process .ASEE Annual Conference Proceedings, , 1 ,76-83
Tarn C.;Orkwis P.;Disimile P. (01-01-1995. ) A comparison of several standard turbulence models for 2-D open cavity flow field computations .33rd Aerospace Sciences Meeting and Exhibit, ,
Dailey L.;Jennions I.;Orkwis P. (01-01-1995. ) Simulation of laminar-turbulent transition with an explicit navier-stokes flow solver.Journal of Propulsion and Power, , 11 (6 ) ,1187-1194 More Information
Orkwis P.;Tam C.;Disimile P. (01-01-1995. ) Observations on using experimental data as boundary conditions for computations.AIAA Journal, , 33 (1 ) ,176-178 More Information
Orkwis P. (01-01-1993. ) Comparison of Newton’s and quasi-Newton’s method solvers for the Navier-Stokes equations.AIAA Journal, , 31 (5 ) ,832-836 More Information
Dusing D.;Orkwis P. (01-01-1993. ) On computing vortex asymmetries about cones at angle of attack using the conical Navier-Stokes equat .Flight Simulation and Technologies, 1993, , 122-130
Orkwis P.D.;George J.H. (01-01-1993. ) A comparison of cgs preconditioning methods for newton’s method solvers .11th Computational Fluid Dynamics Conference, 1993, , 328-337
Orkwis P.D.;McRae D.S. (01-01-1992. ) Newton’s method solver for the axisymmetric Navier-Stokes equations.AIAA Journal, , 30 (6 ) ,1507-1514 More Information
Orkwis P.;McRae D. (01-01-1992. ) Newton’s method solver for high-speed viscous separated flowfields.AIAA Journal, , 30 (1 ) ,78-85 More Information
Orkwis P.D.;McRae D.S. (01-01-1991. ) A Newton’s method solver for the axisymmetric Navier-Stokes equations .10th Computational Fluid Dynamics Conference, 1991, ,
Orkwis P.D.;McRae D.S. (01-01-1990. ) A Newton’s method solver for the Navier-stokes equations .AIAA 21st Fluid Dynamics, Plasma Dynamics and Lasers Conference, 1990, ,
Orkwis P.D.;McRae D.S. (01-01-1987. ) Analysis of selected standard implicit schemes with arbitrary mesh movement .8th Computational Fluid Dynamics Conference, 1987, , 738-748