Three-Dimensional Parallel Adaptive Mesh Refinement Simulations of Shock-Driven Turbulent Mixing in Plane and Converging Geometries

Conference · Fri Jan 01 04:00:00 EST 2010

OSTI ID:979325

Lombardini, Manuel ^[1]; Deiterding, Ralf ^[2]

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1. California Institute of Technology, Pasadena
2. ORNL

This paper presents the use of a dynamically adaptive mesh refinement strategy for the simulations of shock-driven turbulent mixing. Large-eddy simulations are necessary due the high Reynolds number turbulent regime. In this approach, the large scales are simulated directly and small scales at which the viscous dissipation occurs are modeled. A low-numerical centered finite-difference scheme is used in turbulent flow regions while a shock-capturing method is employed to capture shocks. Three-dimensional parallel simulations of the Richtmyer-Meshkov instability performed in plane and converging geometries are described.

• Research Organization: Oak Ridge National Laboratory (ORNL)
• Sponsoring Organization: SC USDOE - Office of Science (SC)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 979325
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
97 MATHEMATICS AND COMPUTING
ADAPTIVE SYSTEMS
COMPUTERIZED SIMULATION
FINITE DIFFERENCE METHOD
INSTABILITY
MESH GENERATION
MIXING
PARALLEL PROCESSING
REYNOLDS NUMBER
SHOCK WAVES
THREE-DIMENSIONAL CALCULATIONS
TURBULENT FLOW