Abstract
A parallel computing methodology is presented for the direct numerical simulation of turbulent flows induced by pressure gradients and induction forces in channels. The numerical algorithm is based on the high-order-finite-difference (HOFD) scheme, which has been shown to possess the spectral-like accuracy but with superior computational efficiency and thus is ideally suited for computationally intensive numerical studies such as direct numerical simulation of turbulence. The computational efficiency is further enhanced using parallel computers. The parallel implementation and computational performance are discussed and numerical results using the parallel algorithms for direct numerical simulation of pressure gradient driven in parallel-plate channels and magnetically driven turbulent flows in induction channels are presented.
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