Parallelization of Explicit and Fully Implicit Navier-Stokes Solutions for Compressible Flows. G.U. Aero Report 9236

Xu, X., Qin, N. and Richards, B.E. (1992) Parallelization of Explicit and Fully Implicit Navier-Stokes Solutions for Compressible Flows. G.U. Aero Report 9236. Technical Report. Department of Aerospace Engineering, University of Glasgow.

Abstract

The paper describes two studies involved with the parallelisation of algorithms for the numerical calculation of hypersonic viscous flows over generic vehicle configurations by solving the Navier-Stokes equations. One involved a scalable explicit formulation that achieved high parallel efficiency on 32 processors of an Intel iPSC860 Hypercube when calculating the 3-dimensional flow over a blunt delta wing at high incidence, the other involved a fully implicit formulation using a Newton-like procedure with a GMRES solver with pre-conditioning when high efficiency was achieved when run on 8 transputers of a Meiko Computing Surface computer in order to calculate the flow over a cone at high incidence. This latter approach, although more complex, has potential in providing more rapid convergence characteristics, hence efficiency, than the explicit scheme. High order upwind discretisation was used in each case in order to achieve high resolution of important shock and viscous phenomenon within the flow field. The work reported contributes to the aim of a wider programme of work, a summary of which is included, to provide the computational tools to calculate accurately and efficiently steady and unsteady viscous compressible flows over complex aerospace configurations.

• Item Type: Research Reports or Papers (Technical Report)
• Status: Published
• Glasgow Author(s) Enlighten ID: Richards, Professor Bryan
• Authors: Xu, X., Qin, N., and Richards, B.E.
• College/School: College of Science and Engineering > School of Engineering > Autonomous Systems and Connectivity
• Publisher: Department of Aerospace Engineering, University of Glasgow
• Copyright Holders: Copyright © 1992 Department of Aerospace Engineering, University of Glasgow
• Publisher Policy: Reproduced with the permission of the Department