Direct Numerical Simulation
Direct Numerical Simulation (DNS) is a computational approach that solves the Navier-Stokes equations without turbulence models, resolving all scales of motion from the largest energy-containing eddies down to the smallest dissipative scales (Kolmogorov microscales). Pioneered by Steven Orszag in 1971, DNS provides complete information about turbulent flow fields and serves as a reference solution for validating turbulence models. However, extreme computational demands limit DNS to relatively simple geometries and low to moderate Reynolds numbers.
Source record
Citations copied verbatim from the method’s source record. No claim-level verification is inferred from them.
- Orszag, S. A. (1971). Numerical simulation of incompressible flows within simple boundaries: accuracy. Journal of Fluid Mechanics, 49(1), 75-112. · DOI 10.1017/S0022112071001940
- Moin, P., & Mahesh, K. (1998). Direct numerical simulation: a tool in turbulence research. Annual Review of Fluid Mechanics, 30, 539-578. · DOI 10.1146/annurev.fluid.30.1.539
- Kim, J., Moin, P., & Moser, R. (1987). Turbulence statistics in fully developed channel flow at low Reynolds number. Journal of Fluid Mechanics, 177, 133-166. · DOI 10.1017/S0022112087000892
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