Chief Research ScientistDr. John Steinhoff , Most of his research has been involved the treatment of vortex-dominated flows in computational fluid dynamics and the treatment of short wave equation pulses, including the solution of real problems of engineering importance.His Vorticity Confinement method that eliminates effects of numerical diffusion, for computations on Eulerian grids, without the use of Lagrangian markers has been used in many applications involving computation of: Helicopter Blade—Vortex Interaction, Delta Wing Flow, Helicopter Rotor/Body Flow, Dynamic Stall, Aircraft Trailing Vortices, Supersonic Flow Over Missiles. John also developed another computational technique, Wave Confinement, for propagating short wave equation pulses over long distances without the use of Lagrangian markers, which require the use of complex logic and are not feasible for intersecting pulses. This has major applications in rotorcraft acoustics, communications, radar wave scattering, target detection etc. His methods have also been used in creating special effects for movies such as Harry Potter and The Core.Selected Published Works
“Long Distance Wave Computation using Nonlinear Solitary Waves”, Journal of Computational and Applied Mathematics, August 2009.(principle author)
“Long Range Numerical Simulation of Short Waves as Nonlinear Solitary Waves”, Journal Mathematics and Computers in Simulation on "Nonlinear Waves: Computation and Theory", 2009.(principle author)
“Long-Time Solution of the Wave Equation Using Nonlinear Dissipative Structures”,Proceedings of The Tenth International Conference on Integral Methods in Science and Engineering, 2008. (principle author)
“Large Eddy Simulation Using Vorticity Confinement,” Chapter 4 in Implicit Large Eddy Simulation: Computing Turbulent Flow Dynamics, Edited by F. F. Grinstein, L. G. Margolin, and W. J. Rider, Cambridge University Press, New York, NY, 2006. (principal author)
“Turbulent Flow Simulations Using Vorticity Confinement,” Chapter 12 in Implicit Large Eddy Simulation: Computing Turbulent Flow Dynamics, Edited by F. F. Grinstein, L. G. Margolin, and W. J. Rider, Cambridge University Press, New York, NY, 2006. (principal author)
“Computation of Short Wave Equation Pulses Using Nonlinear Solitary Waves,” Published inComputer Modeling in Engineering & Sciences, Vol. 5, No. 4, 2004. (principal author)
“Convection of Concentrated Vortices and Passive Scalars as Solitary Waves,” SIAM Journal of Scientific Computing, Vol. 19, December 2003. (principal author)
“Application of Vorticity Confinement to the Prediction of the Flow over Complex Bodies,” AIAA Journal, Vol. 41, No. 4, pp.809-816, May 2003. (principal author)
“Vorticity Confinement – Recent Results: Turbulent Wake Simulations and A New, Conservative Formulation,” Numerical Simulations of Incompressible Flows, World Scientific Publishing, 2003. (principal author)
“Computing Blunt Body Flows on Coarse Grids Using Vorticity Confinement,” Journal of Fluids Engineering, Vol. 124, No. 4, pp.876-885, Dec. 2002. (principal author)
“Numerical Method for Vorticity Confinement in Compressible Flow,” AIAA Journal, Vol. 40, No. 10, pp. 1945-1953, October 2002. (co author)
“Efficient Eulerian Computation of Realistic Rotorcraft Flows Using Vorticity Confinement,” 39th AIAA Aerospace Sciences Meeting and Exhibit, January 2001,(coauthor)
“Application of Vorticity Confinement to the Prediction of the Flow over Complex Bodies,” Frontiers of Computational Fluid Dynamics – 2000, Wiley and Sons. (principal author)
“The Computation of Flow Over Helicopter Rotors and Complex Bodies Using Vorticity Confinement,” Computational Fluid Dynamics Journal, Vol. 9, No. 1, 2000, (principal author)
“A New Eulerian Method for the Computation of Propagating Short Acoustics and Electromagnetic Pulses,” Journal of Computational Physics, Vol. 157, 2000, (principal author)
“Numerical Vorticity Confinement for Vortex-Solid Body Interaction Problems,” AIAA Journal, Vol. 3, No. 8, 1447, August 1995 (coauthor)
“Vorticity Confinement: A New Technique for Computing Vortex Dominated Flows,” Chapter 14, Frontiers of Computational Fluid Dynamics, Wiley and Sons, 1994, (principal author)
“Modification of Euler Equations for `Vorticity Confinement’ - Application to the Computation of Interacting Vortex Rings,” Physics of Fluids, Vol. 6, 2738, 1994, (principal author)
Dr. John Steinhoff ,
Most of his research has been involved the treatment of vortex-dominated flows in computational fluid dynamics and the treatment of short wave equation pulses, including the solution of real problems of engineering importance.His Vorticity Confinement method that eliminates effects of numerical diffusion, for computations on Eulerian grids, without the use of Lagrangian markers has been used in many applications involving computation of: Helicopter Blade—Vortex Interaction, Delta Wing Flow, Helicopter Rotor/Body Flow, Dynamic Stall, Aircraft Trailing Vortices, Supersonic Flow Over Missiles. John also developed another computational technique, Wave Confinement, for propagating short wave equation pulses over long distances without the use of Lagrangian markers, which require the use of complex logic and are not feasible for intersecting pulses. This has major applications in rotorcraft acoustics, communications, radar wave scattering, target detection etc. His methods have also been used in creating special effects for movies such as Harry Potter and The Core.
Selected Published Works
“Long Distance Wave Computation using Nonlinear Solitary Waves”, Journal of Computational and Applied Mathematics, August 2009.(principle author)
“Long Range Numerical Simulation of Short Waves as Nonlinear Solitary Waves”, Journal Mathematics and Computers in Simulation on "Nonlinear Waves: Computation and Theory", 2009.(principle author)
“Long-Time Solution of the Wave Equation Using Nonlinear Dissipative Structures”,Proceedings of The Tenth International Conference on Integral Methods in Science and Engineering, 2008. (principle author)
“Large Eddy Simulation Using Vorticity Confinement,” Chapter 4 in Implicit Large Eddy Simulation: Computing Turbulent Flow Dynamics, Edited by F. F. Grinstein, L. G. Margolin, and W. J. Rider, Cambridge University Press, New York, NY, 2006. (principal author)
“Turbulent Flow Simulations Using Vorticity Confinement,” Chapter 12 in Implicit Large Eddy Simulation: Computing Turbulent Flow Dynamics, Edited by F. F. Grinstein, L. G. Margolin, and W. J. Rider, Cambridge University Press, New York, NY, 2006. (principal author)
“Computation of Short Wave Equation Pulses Using Nonlinear Solitary Waves,” Published inComputer Modeling in Engineering & Sciences, Vol. 5, No. 4, 2004. (principal author)
“Convection of Concentrated Vortices and Passive Scalars as Solitary Waves,” SIAM Journal of Scientific Computing, Vol. 19, December 2003. (principal author)
“Application of Vorticity Confinement to the Prediction of the Flow over Complex Bodies,” AIAA Journal, Vol. 41, No. 4, pp.809-816, May 2003. (principal author)
“Vorticity Confinement – Recent Results: Turbulent Wake Simulations and A New, Conservative Formulation,” Numerical Simulations of Incompressible Flows, World Scientific Publishing, 2003. (principal author)
“Computing Blunt Body Flows on Coarse Grids Using Vorticity Confinement,” Journal of Fluids Engineering, Vol. 124, No. 4, pp.876-885, Dec. 2002. (principal author)
“Numerical Method for Vorticity Confinement in Compressible Flow,” AIAA Journal, Vol. 40, No. 10, pp. 1945-1953, October 2002. (co author)
“Efficient Eulerian Computation of Realistic Rotorcraft Flows Using Vorticity Confinement,” 39th AIAA Aerospace Sciences Meeting and Exhibit, January 2001,(coauthor)
“Application of Vorticity Confinement to the Prediction of the Flow over Complex Bodies,” Frontiers of Computational Fluid Dynamics – 2000, Wiley and Sons. (principal author)
“The Computation of Flow Over Helicopter Rotors and Complex Bodies Using Vorticity Confinement,” Computational Fluid Dynamics Journal, Vol. 9, No. 1, 2000, (principal author)
“A New Eulerian Method for the Computation of Propagating Short Acoustics and Electromagnetic Pulses,” Journal of Computational Physics, Vol. 157, 2000, (principal author)
“Numerical Vorticity Confinement for Vortex-Solid Body Interaction Problems,” AIAA Journal, Vol. 3, No. 8, 1447, August 1995 (coauthor)
“Vorticity Confinement: A New Technique for Computing Vortex Dominated Flows,” Chapter 14, Frontiers of Computational Fluid Dynamics, Wiley and Sons, 1994, (principal author)
“Modification of Euler Equations for `Vorticity Confinement’ - Application to the Computation of Interacting Vortex Rings,” Physics of Fluids, Vol. 6, 2738, 1994, (principal author)
“Long Range Numerical Simulation of Short Waves as Nonlinear Solitary Waves”, Journal Mathematics and Computers in Simulation on "Nonlinear Waves: Computation and Theory", 2009.(principle author)
“Long-Time Solution of the Wave Equation Using Nonlinear Dissipative Structures”,Proceedings of The Tenth International Conference on Integral Methods in Science and Engineering, 2008. (principle author)
“Large Eddy Simulation Using Vorticity Confinement,” Chapter 4 in Implicit Large Eddy Simulation: Computing Turbulent Flow Dynamics, Edited by F. F. Grinstein, L. G. Margolin, and W. J. Rider, Cambridge University Press, New York, NY, 2006. (principal author)
“Turbulent Flow Simulations Using Vorticity Confinement,” Chapter 12 in Implicit Large Eddy Simulation: Computing Turbulent Flow Dynamics, Edited by F. F. Grinstein, L. G. Margolin, and W. J. Rider, Cambridge University Press, New York, NY, 2006. (principal author)
“Computation of Short Wave Equation Pulses Using Nonlinear Solitary Waves,” Published inComputer Modeling in Engineering & Sciences, Vol. 5, No. 4, 2004. (principal author)
“Convection of Concentrated Vortices and Passive Scalars as Solitary Waves,” SIAM Journal of Scientific Computing, Vol. 19, December 2003. (principal author)
“Application of Vorticity Confinement to the Prediction of the Flow over Complex Bodies,” AIAA Journal, Vol. 41, No. 4, pp.809-816, May 2003. (principal author)
“Vorticity Confinement – Recent Results: Turbulent Wake Simulations and A New, Conservative Formulation,” Numerical Simulations of Incompressible Flows, World Scientific Publishing, 2003. (principal author)
“Computing Blunt Body Flows on Coarse Grids Using Vorticity Confinement,” Journal of Fluids Engineering, Vol. 124, No. 4, pp.876-885, Dec. 2002. (principal author)
“Numerical Method for Vorticity Confinement in Compressible Flow,” AIAA Journal, Vol. 40, No. 10, pp. 1945-1953, October 2002. (co author)
“Efficient Eulerian Computation of Realistic Rotorcraft Flows Using Vorticity Confinement,” 39th AIAA Aerospace Sciences Meeting and Exhibit, January 2001,(coauthor)
“Application of Vorticity Confinement to the Prediction of the Flow over Complex Bodies,” Frontiers of Computational Fluid Dynamics – 2000, Wiley and Sons. (principal author)
“The Computation of Flow Over Helicopter Rotors and Complex Bodies Using Vorticity Confinement,” Computational Fluid Dynamics Journal, Vol. 9, No. 1, 2000, (principal author)
“A New Eulerian Method for the Computation of Propagating Short Acoustics and Electromagnetic Pulses,” Journal of Computational Physics, Vol. 157, 2000, (principal author)
“Numerical Vorticity Confinement for Vortex-Solid Body Interaction Problems,” AIAA Journal, Vol. 3, No. 8, 1447, August 1995 (coauthor)
“Vorticity Confinement: A New Technique for Computing Vortex Dominated Flows,” Chapter 14, Frontiers of Computational Fluid Dynamics, Wiley and Sons, 1994, (principal author)
“Modification of Euler Equations for `Vorticity Confinement’ - Application to the Computation of Interacting Vortex Rings,” Physics of Fluids, Vol. 6, 2738, 1994, (principal author)