Boeing 747-200, wing tip vortex, three dimensional Navier Stokes numerical simulation, parallel vector computer, numerical wind tunnel, TVD upwind scheme, finite volume method, C O type grid, grid generation, processor element
その他のタイトル（英）
Parallel computation of a tip vortex induced by an aircraft wing
Three dimensional Navier-Stokes simulations about the wing of the Boeing 747-200 have been carried out using a parallel vector computer called NWT (Numerical Wind Tunnel) at the National Aerospace Laboratory, Japan. The main objective of this study is to simulate the wing-tip vortex. The governing equations are three dimensional Reynolds-averaged thin-layer Navier-Stokes equations which are discretized by finite volume method with a TVD (Total Variation Diminishing) upwind scheme. The C-O type of grid around the wing has been decomposed equally into 24 subdomains. Parallelization has been done by means of sharing the load of computation for each subdomain to each PE (Processor Element). Computation using a grid with 11-million grid-points shows an existence of a strong tip vortex induced by the wing.
並列計算機による航空機翼端渦の数値シミュレーション
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