An easily implemented task-based parallel scheme for the Fourier pseudospectral solver applied to 2D Navier–Stokes turbulence
An efficient parallel scheme is proposed for performing direct numerical simulation (DNS) of two-dimensional Navier–Stokes turbulence at high Reynolds numbers. We illustrate the resulting numerical code by displaying relaxation to states close to those that have been predicted by statistical–mechani...
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| Veröffentlicht in: | Computers & fluids 2004-05, Vol.33 (4), p.509-520 |
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| container_title | Computers & fluids |
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| creator | Yin, Z. Clercx, H.J.H. Montgomery, D.C. |
| description | An efficient parallel scheme is proposed for performing direct numerical simulation (DNS) of two-dimensional Navier–Stokes turbulence at high Reynolds numbers. We illustrate the resulting numerical code by displaying relaxation to states close to those that have been predicted by statistical–mechanical methods which start from ideal (Euler) fluid mechanics. The validation of these predictions by DNS requires unusually long computation times on single-cpu workstations, and suggests the use of parallel computation. The performance of our MPI Fortran 90 code on the SGI Origin 3800 is reported, together with its comparison with another parallel method. A few computational results that illustrate tests of the statistical–mechanical predictions are presented. |
| doi_str_mv | 10.1016/j.compfluid.2003.06.003 |
| format | Article |
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| ispartof | Computers & fluids, 2004-05, Vol.33 (4), p.509-520 |
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| language | eng |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Computational methods in fluid dynamics Exact sciences and technology Fluid dynamics Fundamental areas of phenomenology (including applications) High-reynolds-number turbulence Physics Turbulent flows, convection, and heat transfer |
| title | An easily implemented task-based parallel scheme for the Fourier pseudospectral solver applied to 2D Navier–Stokes turbulence |
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