Numerical simulation of the small vortices in the intake and compression processes of an engine

Ken Naitoh, Kunio Kuwahara, Manfred Jeschke, Egon Krause

Research output: Contribution to journalArticle

Abstract

The turbulence-generation mechanism in the intake and compression processes of an engine with a square cylinder is investigated by performing a three-dimensional numerical simulation. Emphasis is placed on the influences of the intake turbulence and the compression effect on the TDC turbulence. The compressible Navier-Stokes equations are solved without any explicit turbulence models. The employed numerical algorithm is an extended version of the ICE method, and the third-order upwind scheme is employed for the convective terms. The obtained computational results agreed well with the experimental visualization using freon as the working fluid under the Mach-number condition over 0.5. It is shown that the drastic transition to turbulence near TDC is grasped by computations using this numerical method.

Original languageEnglish
Pages (from-to)2719-2726
Number of pages8
JournalNippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume57
Issue number540
Publication statusPublished - 1991 Aug
Externally publishedYes

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engines
Vortex flow
Turbulence
turbulence
vortices
Engines
Computer simulation
simulation
freon
working fluids
turbulence models
Engine cylinders
Turbulence models
Mach number
Navier-Stokes equation
Navier Stokes equations
Numerical methods
Visualization
Fluids

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Numerical simulation of the small vortices in the intake and compression processes of an engine. / Naitoh, Ken; Kuwahara, Kunio; Jeschke, Manfred; Krause, Egon.

In: Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Vol. 57, No. 540, 08.1991, p. 2719-2726.

Research output: Contribution to journalArticle

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