COMPUTATION OF FLOW PAST A SQUARE CYLINDER USING ADAPTIVE HIERARCHICAL MESHES

This paper presents a method for predicting incompressible separated flow past a cylinder, whereby the Navier-Stokes equations are solved on quadtree-based hierarchical meshes. The governing equations are discretised using finite volumes and solved using a pressure correction method. The mesh is locally adapted at each time step. The resulting grids are economical in array size, while giving fine resolution in areas of high vorticity. Results are presented for the case of unidirectional flow past a square cylinder at a Reynolds number of 250 and are in reasonable agreement with experimental data obtained by Okajima (1982) and Davis and Moore (1982). Hierarchical meshes may offer considerable gains in efficiency and accuracy when applied to complex flow domains or strongly sheared flows.

  • Supplemental Notes:
    • OMAE 1995, 14th Intl Conf on Offshore Mechanics & Arctic Engng; 18-22 June 1995; Copenhagen, Denmark. Sponsored by ASME et al. Procs. Publ by ASME, ISBN 0-7918-1306-1. Vol I, Pt A, p 305 [7 p, 14 ref, 8 fig]
  • Authors:
    • Greaves, D M
    • Borthwick, A G
  • Publication Date: 1995

Language

  • English

Subject/Index Terms

Filing Info

  • Accession Number: 00718283
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Mar 27 1996 12:00AM