PPT-Direct Numerical Simulation of Compressible Turbulent Flows

Alfred Gessow Rotorcraft Center Aerospace Engineering Department University of Maryland College Park Debojyoti Ghosh Graduate Research Assistant James D Baeder Associate Professor 65 th. Typically occurs when the velocity is low or the fluid is very viscous. 2 3Turbulent flow Opposite of laminar, where considerable mixing occurs, velocities are high. Laminar and Turbulent fl : . Lecture 8. (ME EN 7960-003). Prof.. Rob Stoll. Department of Mechanical Engineering. University of Utah. Fall 2014. LES and numerical methods. LES requires that the filtered equations of motion (see Lectures 5 and 6) be solved on a numerical grid.. : Lecture 12. (ME EN 7960-008). Prof.. Rob Stoll. Department of Mechanical Engineering. University of Utah. Spring 2011. Turbulence modeling (alternative strategies). . Filtered Density Functions (FDF). of a turbulent stably stratified air flow. above the wavy water surface.. . O. A. Druzhinin, Y. I. Troitskaya. . Institute of Applied Physics, RAS, Nizhny Novgorod, Russia. and. S.S. Zilitinkevich. : Lecture 7. (ME EN 7960-003). Prof.. Rob Stoll. Department of Mechanical Engineering. University of Utah. Fall 2014. Turbulence modeling (alternative strategies). So far our discussion of turbulence modeling has centered around separating the flow into resolved and . 1. (ME EN 7960-. 003). Prof. Rob Stoll. Department of Mechanical Engineering. University of Utah. Fall 2014. Vorticity: or. Turbulent Flow Properties. Why study turbulence? Most real flows in engineering applications are turbulent. . : Lecture. 7. (ME EN 7960-008). Prof.. Rob Stoll. Department of Mechanical Engineering. University of Utah. Spring 2011. Equations of Motion. . Incompressible flow:. . g. eneral scalar (. Sc. =Schmidt #). (ME EN 7960-008). Prof. Rob Stoll. Department of Mechanical Engineering. University of Utah. Spring 2011. Vorticity: or. Turbulent Flow Properties. Why study turbulence? Most real flows in engineering applications are turbulent. . Centre for Fire and Explosion Studies. School of Mechanical and Automotive Engineering, Kingston University London. Centre for Fire and Explosion Studies. A. . Heidari. and J.X. . Wen. Detonation. . Alfred Gessow Rotorcraft Center . Aerospace Engineering Department . University of Maryland, College Park. Debojyoti Ghosh. Graduate Research Assistant. James . D. Baeder. Associate Professor. 65. th. Alfred Gessow Rotorcraft Center . Aerospace Engineering Department . University of Maryland, College Park. Debojyoti Ghosh. Graduate Research Assistant. James . D. Baeder. Associate Professor. 65. th. ( 1992) T. J. POINSOT* Center for Turbulence Research, Stanford University, Stanford, California 94305 AND S. LELE+ NASA Ames Research Center, Moffett Field, California 94305 Received February 23, Implicit LES Method . Yan. March. . 27. th. 2014. 1. Problem Description. 2. Sketch of the mercury free jet with MHD and energy deposition . for . the MERIT experiment. Numerical Calculation. 3. (a). Pete Strakey, NETL. Effects of pressure and diluents on flames.. Identification of target conditions.. Overview of characteristic time and length scales.. CFD simulations of turbulent time and length scales..