CONVEX AND CONCAVE SURFACE CURVATURE EFFECTS IN WALL-BOUNDED TURBULENT FLOWS

A fully ellipitic numerical method developed to solve the two-dimensional Reynolds-averaged Navier-Stokes equations for an incompressible fluid is employed in a computational study of several flows involving convex and concave surface curvature. The K-epsilon turbulence model and variant of it, proposed to improve the calculation of flows with streamline curvature, are used in conjunction with a one-equation near-wall model. The performance of the method is examined through computations of fully developed curved duct flow and boundary layers on curved surfaces. In each case the main features of the flow are consistently reproduced. However, the computations tend to overpredict the convex wall skin friction and underpredict the concave wall skin friction.

  • Supplemental Notes:
    • AIAA J, v 29 n 6, June 1991, p 895 [8 p, 19 ref, 14 fig]
  • Authors:
    • Richmond, M C
    • Patel, V C
  • Publication Date: 1991

Language

  • English

Subject/Index Terms

Filing Info

  • Accession Number: 00716226
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Feb 28 1996 12:00AM