Numerical Simulation of the Small Vortices in the Intake and Compression Processes of an Engine

Ken Naitoh, Kunio Kuwahara, Manfred Jeschke, Egon Krause

研究成果: Article査読

抄録

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.

本文言語English
ページ(範囲)2719-2726
ページ数8
ジャーナルTransactions of the Japan Society of Mechanical Engineers Series B
57
540
DOI
出版ステータスPublished - 1991
外部発表はい

ASJC Scopus subject areas

  • 凝縮系物理学
  • 機械工学

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