'Turbulent viscosity' presentation slideshows

Introduction to classical large eddy simulation (LES) of turbulent flows

1.74k views • 88 slides

Modeling Turbulent Flows

Modeling Turbulent Flows. Introductory FLUENT Training. What is Turbulence?. Unsteady, irregular (aperiodic) motion in which transported quantities (mass, momentum, scalar species) fluctuate in time and space Identifiable swirling patterns characterize turbulent eddies.

724 views • 51 slides

AMS 691 Special Topics in Applied Mathematics Lecture 8

AMS 691 Special Topics in Applied Mathematics Lecture 8. James Glimm Department of Applied Mathematics and Statistics, Stony Brook University Brookhaven National Laboratory. Turbulence Theories. Many theories, many papers Last major unsolved problem of classical physics New development

501 views • 35 slides

Objective

Objective. Reynolds Navier Stokes Equations (RANS) Numerical methods. Time Averaged Momentum Equation. Instantaneous velocity. Average velocities. Reynolds stresses. For y and z direction:. Total nine. Modeling of Reynolds stresses Eddy viscosity models. Average velocity.

203 views • 20 slides

Objective

Objective. Define Reynolds Navier Stokes Equations (RANS) Start with N umerics. From the last class Averaging Navier Stokes equations. Substitute into Navier Stokes equations. Instantaneous velocity. fluctuation around average velocity. Average velocity. Continuity equation:. time.

209 views • 20 slides

Lecture Objectives

Lecture Objectives. Review for exam Course overview Example questions from previous exams Discuss midterm project. Course Masterial Review. Navier-Stokes equations and RANS Turbulence modeling Discretization and equation solver Boundary conditions Numerical properties.

185 views • 18 slides

Lecture Objectives

Lecture Objectives. Review for exam Course overview Example questions from previous exams Discuss midterm project. Course Masterial Review. Navier-Stokes equations and RANS Turbulence modeling Discretization and equation solver Boundary conditions Numerical properties.

202 views • 12 slides

Next Class

310 views • 10 slides