EXPERIMENTAL EVALUATION OF THE K-E TURBULENCE MODEL IN NUMERICAL SIMULATION OF IN-CYLINDER AIR MOTION

In a previous report, it was revealed that the k-e turbulence model, which assumes an isotropic eddy viscosity, was not appropriate for the prediction of an anisotropic in-cylinder flow field. In this article, the k-e turbulence model is modified so as to be applicable to the anisotropic in-cylinder flow, using a flux richardson number which represents the effect of anisotropy of turbulence on turbulent diffusivity. A comparison between the prediction and the experimental data, obtained by an ldv system using a transparent cylinder engine, shows that the modified k-e turbulence model allows successful prediction of the mean flow field but little improvement regarding the turbulence field.(a)

• Availability:
  • Find a library where document is available. Order URL: https://www.library.northwestern.edu/find-borrow-request/requests-interlibrary-loan/lending-institutions.html
• Authors:
  • Moriyoshi, Y
  • Kobayashi, H
  • Kamimoto, T
• Publication Date: 1989

Language

• English

Media Info

• Pagination: p. 598-608
• Serial:
  • International Journal of Vehicle Design
  • Volume: 10
  • Issue Number: 5
  • Publisher: Inderscience Enterprises Limited
  • ISSN: 1477-5360
  • Serial URL: http://www.inderscience.com/jhome.php?jcode=IJVD

Subject/Index Terms

• TRT Terms: Air; Calculation; Engines; Flow; Fluid dynamics; Forecasting; Mathematical analysis; Mathematical models; Motion; Simulation
• ITRD Terms: 6714: Air; 6471: Analysis (math); 6464: Calculation; 5430: Flow (fluid); 132: Forecast; 6473: Mathematical model; 1334: Motor; 5483: Movement; 9103: Simulation
• Subject Areas: Vehicles and Equipment;

Filing Info

• Accession Number: 00498914
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Sep 30 1990 12:00AM