A Higher-Order Accurate Computation of Three-Dimensional flow in the Intake Process of a Reciprocal Engine

Ken Naitoh, Yasuo Yoshikawa, Hiroyuki Fujii, Yasuo Takagi

研究成果: Article査読

1 被引用数 (Scopus)

抄録

A three-dimensional flow in the intake process of a reciprocal engine is calculated numerically under such complicated boundary conditions as moving valves and arbitary intake-port and combustion chamber configurations. A finite difference method using a third-order upwind scheme for convective terms is applied to solve incompressible Navier-Stokes equations. This model enables us to simulate the occurence of small vortices near the valve and valve seat or caused by curvature of the intake port, as well as the influence on flow in a cylinder of the vortices. The difference in flow pattern between single and double intake valves is compared as an application of this model. LDV measurements at 126 points inside an engine cylinder at an engine speed of 1 400 rpm are also performed in this study to evaluate the calculation results. It is clarified that the calculation flow field agrees fairly well with the measured results.

本文言語English
ページ(範囲)1868-1875
ページ数8
ジャーナルTransactions of the Japan Society of Mechanical Engineers Series B
55
515
DOI
出版ステータスPublished - 1989
外部発表はい

ASJC Scopus subject areas

  • 凝縮系物理学
  • 機械工学

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