直線直交格子を用いたパーシャルセル法による筒内定常流の計算とPIV計測による検証

フォーマット:

論文

責任表示:

高橋, 易資 ; 野村, 友和 ; 石間, 経章 ; 小保方, 富夫

言語:

日本語

出版情報:

日本機械学会, 2005-06-25

著者名:

• 高橋, 易資
• 野村, 友和
• 石間, 経章
• 小保方, 富夫

掲載情報:

日本機械学會論文集. B編

ISSN:

0387-5016      

巻:

71

通号:

706

開始ページ:

1694

終了ページ:

1701

バージョン:

VoR

概要:

application/pdf<br />Journal Article<br />A computational fluid dynamics (CFD) code with partial cells in Cartesian coordinate (PCC) method has been developed. The merit of this method is that input data preparation time is extremely short because computational mesh data are separated from geometry data. However, a general Cartesian coordinate method has a big subject in calculation accuracy. One of the factors is precision in geometry expression … around the complicated shape, and another is a turbulence model near the wall because mesh is independent from the boundary and not fitted with it. Therefore, discretization equations were derived based on Finite Volumetric Method, and a combination of the wall function and a low Reynolds number k-ε turbulence model was proposed here. This paper describes implementation of this method and shows the results compared with experimental data by particle image velocimetry (PIV) at the steady flow in the cylinder of a 4-valves S.I. engine. The comparison results of velocity vector maps show good agreement between CFD and PIV. 続きを見る