2 WALL MODELING FOR LARGE EDDY SIMULATION (LES) REMAINS A SIGNIFICANT BARRIER TO THE APPLICATION OF LES IN AERONAUTICAL DESIGN FOR HIGH REYNOLDS NUMBER AND COMPLEX FLOWS. WE PROPOSE TO INVESTIGATE THE POTENTIAL FOR A SUBGRID SCALE (SGS) WALL MODEL BASED ON MODELING THE SGS KINETIC ENERGY AND INCLUDING THE POSSIBILITY FOR BACKSCATTER OF ENERGY FROM THE UNRESOLVED MODEL SCALES TO THE RESOLVED SIMULATED SCALES. WE WILL USE EXISTING DIRECT NUMERICAL SIMULATION (DNS) RESULTS FOR WALL-BOUNDED FLOWS (E.G. CHANNEL FLOWS) TO QUANTIFY THE CORRELATION BETWEEN SGS STRESSES AND SGS KINETIC ENERGY. FURTHER, IN COLLABORATION WITH NASA, WE WILL IMPLEMENT AN SGS KINETIC ENERGY MODEL AND CORRESPONDING SGS STRESSES IN THE VARIATIONAL MULTISCALE METHOD (VMM) FOR LES RECENTLY DEVELOPED BY MURMAN, DIOSDAY, ET AL. OUR RESEARCH WILL HELP PROVIDE THE NEXT STEPS TOWARDS A SOUND FORMULATION OF WALL-MODELED LES. Funding Only Action ($11k) 11/29/18 Not listed WALL MODELING FOR LARGE EDDY SIMULATION (LES) REMAINS A SIGNIFICANT BARRIER TO THE APPLICATION OF LES IN AERONAUTICAL DESIGN FOR HIGH REYNOLDS NUMBER AND COMPLEX FLOWS. WE PROPOSE TO INVESTIGATE THE POTENTIAL FOR A SUBGRID SCALE (SGS) WALL MODEL BASED ON MODELING THE SGS KINETIC ENERGY AND INCLUDING THE POSSIBILITY FOR BACKSCATTER OF ENERGY FROM THE UNRESOLVED MODEL SCALES TO THE RESOLVED SIMULATED SCALES. WE WILL USE EXISTING DIRECT NUMERICAL SIMULATION (DNS) RESULTS FOR WALL-BOUNDED FLOWS (E.G. CHANNEL FLOWS) TO QUANTIFY THE CORRELATION BETWEEN SGS STRESSES AND SGS KINETIC ENERGY. FURTHER IN COLLABORATION WITH NASA WE WILL IMPLEMENT AN SGS KINETIC ENERGY MODEL AND CORRESPONDING SGS STRESSES IN THE VARIATIONAL MULTISCALE METHOD (VMM) FOR LES RECENTLY DEVELOPED BY MURMAN DIOSDAY ET AL. OUR RESEARCH WILL HELP PROVIDE THE NEXT STEPS TOWARDS A SOUND FORMULATION OF WALL-MODELED LES. ($11k) 11/29/18 1 WALL MODELING FOR LARGE EDDY SIMULATION (LES) REMAINS A SIGNIFICANT BARRIER TO THE APPLICATION OF LES IN AERONAUTICAL DESIGN FOR HIGH REYNOLDS NUMBER AND COMPLEX FLOWS. WE PROPOSE TO INVESTIGATE THE POTENTIAL FOR A SUBGRID SCALE (SGS) WALL MODEL BASED ON MODELING THE SGS KINETIC ENERGY AND INCLUDING THE POSSIBILITY FOR BACKSCATTER OF ENERGY FROM THE UNRESOLVED MODEL SCALES TO THE RESOLVED SIMULATED SCALES. WE WILL USE EXISTING DIRECT NUMERICAL SIMULATION (DNS) RESULTS FOR WALL-BOUNDED FLOWS (E.G. CHANNEL FLOWS) TO QUANTIFY THE CORRELATION BETWEEN SGS STRESSES AND SGS KINETIC ENERGY. FURTHER, IN COLLABORATION WITH NASA, WE WILL IMPLEMENT AN SGS KINETIC ENERGY MODEL AND CORRESPONDING SGS STRESSES IN THE VARIATIONAL MULTISCALE METHOD (VMM) FOR LES RECENTLY DEVELOPED BY MURMAN, DIOSDAY, ET AL. OUR RESEARCH WILL HELP PROVIDE THE NEXT STEPS TOWARDS A SOUND FORMULATION OF WALL-MODELED LES. Funding Only Action $47.0k 6/12/17 Not listed WALL MODELING FOR LARGE EDDY SIMULATION (LES) REMAINS A SIGNIFICANT BARRIER TO THE APPLICATION OF LES IN AERONAUTICAL DESIGN FOR HIGH REYNOLDS NUMBER AND COMPLEX FLOWS. WE PROPOSE TO INVESTIGATE THE POTENTIAL FOR A SUBGRID SCALE (SGS) WALL MODEL BASED ON MODELING THE SGS KINETIC ENERGY AND INCLUDING THE POSSIBILITY FOR BACKSCATTER OF ENERGY FROM THE UNRESOLVED MODEL SCALES TO THE RESOLVED SIMULATED SCALES. WE WILL USE EXISTING DIRECT NUMERICAL SIMULATION (DNS) RESULTS FOR WALL-BOUNDED FLOWS (E.G. CHANNEL FLOWS) TO QUANTIFY THE CORRELATION BETWEEN SGS STRESSES AND SGS KINETIC ENERGY. FURTHER IN COLLABORATION WITH NASA WE WILL IMPLEMENT AN SGS KINETIC ENERGY MODEL AND CORRESPONDING SGS STRESSES IN THE VARIATIONAL MULTISCALE METHOD (VMM) FOR LES RECENTLY DEVELOPED BY MURMAN DIOSDAY ET AL. OUR RESEARCH WILL HELP PROVIDE THE NEXT STEPS TOWARDS A SOUND FORMULATION OF WALL-MODELED LES. $47.0k 6/12/17 Not listed WALL MODELING FOR LARGE EDDY SIMULATION (LES) REMAINS A SIGNIFICANT BARRIER TO THE APPLICATION OF LES IN AERONAUTICAL DESIGN FOR HIGH REYNOLDS NUMBER AND COMPLEX FLOWS. WE PROPOSE TO INVESTIGATE THE POTENTIAL FOR A SUBGRID SCALE (SGS) WALL MODEL BASED ON MODELING THE SGS KINETIC ENERGY AND INCLUDING THE POSSIBILITY FOR BACKSCATTER OF ENERGY FROM THE UNRESOLVED MODEL SCALES TO THE RESOLVED SIMULATED SCALES. WE WILL USE EXISTING DIRECT NUMERICAL SIMULATION (DNS) RESULTS FOR WALL-BOUNDED FLOWS (E.G. CHANNEL FLOWS) TO QUANTIFY THE CORRELATION BETWEEN SGS STRESSES AND SGS KINETIC ENERGY. FURTHER, IN COLLABORATION WITH NASA, WE WILL IMPLEMENT AN SGS KINETIC ENERGY MODEL AND CORRESPONDING SGS STRESSES IN THE VARIATIONAL MULTISCALE METHOD (VMM) FOR LES RECENTLY DEVELOPED BY MURMAN, DIOSDAY, ET AL. OUR RESEARCH WILL HELP PROVIDE THE NEXT STEPS TOWARDS A SOUND FORMULATION OF WALL-MODELED LES. Not listed $55.0k 9/15/16