A CODING ERROR ELIMINATION PROCEDURE FOR VALIDATING ISOTROPIC TURBULENT CONVECTION NUMERICAL CALCULATIONS IN AXISYMMETRIC FLOWS WITH EULERIAN AND LAGRANGIAN DESCRIPTIONS

A procedure which ensures the elimination of discretisation and coding errors in the numerical solution of a set of governing equations describing internal turbulent convection flows is given and illustrated. The governing equations investigated in the validation analysis are of general form. The equations for the turbulence model (k-epsilon) assume the turbulence to be isotropic. In the analysis a portion of the solution region uses a Lagrangian description while a Eulerian description is used elsewhere. The work was originally motivated by the need to validate numerical calculations performed in the modelling of combusting fluid flow within symmetric piston engines. Thus the procedure is demonstrated for an axisymmetric formulation. The same methodology can be even more easily applied to Cartesian-based problems using the guidelines given in this work. Details of the procedure are presented in a very practical format, making it possible to consider both simpler and more complex governing equation sets with little additional effort. Thus the implementation of this procedure by researchers to a variety of both turbulent and laminar internal flow problems should prove to be easy.

  • Supplemental Notes:
    • Intl J Numerical Methods Fluids, v 14 n 12, 30 June 1992, p 1421 [16 p, 9 ref, 4 tab, 7 fig]
  • Authors:
    • Blank, D A
  • Publication Date: 1992

Language

  • English

Subject/Index Terms

Filing Info

  • Accession Number: 00716260
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Feb 28 1996 12:00AM