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We performed a direct numerical simulation (DNS) of high Reynolds number turbulent channel flow to expand our understanding of wall-bounded turbulence. The resolution requirements inherent to realistic turbulent flows necessitate leadership computing systems. Using Mira at Argonne Leadership Computing Facility, Argonne National Laboratory, we were able to achieve DNS at Re_tau = 5,200, and generated...
We present results of performance optimization for direct numerical simulation (DNS) of wall bounded turbulent flow (channel flow). DNS is a technique in which the fluid flow equations are solved without subgrid modeling. Of particular interest are high Reynolds number (Re) turbulent flows over walls, because of their importance in technological applications. Simulating high Re turbulence is a challenging...
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