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 ForumMore Information
Orkwis P.; Yoder D. (01-01-2019). On the use of optimization techniques for turbulence model calibration. AIAA Scitech 2019 ForumMore 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 ForumMore 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 ConferenceMore Information
Wukie N.;Turner M.;Orkwis P. (01-01-2018). A neumann pressure outlet boundary condition for compressible flows. 2018 Fluid Dynamics ConferenceMore 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 ConferenceMore 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, 13-17More 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, 2016More 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, 2016More 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, 176-196More 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) , 2052-2056More 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) , 1134-1145More 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) , 3726-3736More Information
Galbraith M.;Benek J.;Orkwis P.;Turner M. (07-02-2014). A Discontinuous Galerkin Chimera scheme. Computers and Fluids, 98, 27-53More 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 ConferenceMore 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 BMore 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) , 1346-1356More 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) , 1546-1565More 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) , 1581-1592More 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 ExpositionMore 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 ExpositionMore 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) , 891-903More 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, 1More 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) , 2693-2703More 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) , 719-730More 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) , 681-694More 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) , 1609-1616More 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, 689-705More 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) , 620-641More 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) , 206-212More 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) , 383-389More 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) , 1273-1279More 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, 1More Information
Orkwis P.;Turner M.;Barter J. (01-01-2000). Linear deterministic source terms for hot streak simulations. Proceedings of the ASME Turbo Expo, 1More 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) , 392-398More 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) , 865-867More 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) , 1233-1235More 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) , 505-524More 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) , 1125-1129More Information
Sengupta R.;Orkwis P. (01-01-1996). Proving algorithm symmetry for flows exhibiting symmetry breaking. AIAA Journal, 34 (10) , 2193-2195More 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) , 319-334More 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) , 2255-2260More 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) , 1187-1194More Information
Orkwis P.;Tam C.;Disimile P. (01-01-1995). Observations on using experimental data as boundary conditions for computations. AIAA Journal, 33 (1) , 176-178More 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) , 832-836More 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) , 1507-1514More Information
Orkwis P.;McRae D. (01-01-1992). Newton’s method solver for high-speed viscous separated flowfields. AIAA Journal, 30 (1) , 78-85More 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