A parallel numerical method is developed to study the hovering rotor flowfields. The method solves the compressible Navier-Stokes equations. It uses a third-order upwind finite-volume scheme for discretizing the convective terms and a second-order central finite-volume scheme for discretizing the viscous terms. A DDADI time integration coupling with an implicit residual smoothing is used for achieving fast convergence. Two types of numerical formulas by using the relative and absolute velocity as flow variables in a non-inertial reference frames are introduced and discussed. The numerical simulations are performed for a two-blade rotor on periodic 0 - 0 grid topologies for non-lifting and lifting rotors. Computational solutions show good agreement with the experiment data. All of the simulations are calculated on the 8-nodes PC cluster environment by using MPL The multi-zone technique and data passing between processors are investigated. It is shown that the efficient is about 7.2 4 .
|Title of host publication||Parallel Computational Fluid Dynamics 2002|
|Subtitle of host publication||New Frontiers and Multi-Disciplinary Applications|
|Number of pages||8|
|Publication status||Published - 2003 Apr 25|
All Science Journal Classification (ASJC) codes