LDA・PIVによるシリンダ内定常流れの解析とパーシャルセル法数値計算の検証

フォーマット:

論文

責任表示:

野村, 友和 ; 高橋, 易資 ; 武田, 親士 ; 石間, 経章 ; 小保方, 富夫

言語:

日本語

出版情報:

日本機械学会, 2004-06-25

著者名:

• 野村, 友和
• 高橋, 易資
• 武田, 親士
• 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:

70

通号:

694

開始ページ:

1618

終了ページ:

1625

バージョン:

VoR

概要:

application/pdf<br />Journal Article<br />Characteristics of the flow inside an engine cylinder model have been evaluated by a particle image velocimetry (PIV) and a laser Doppler anemometer (LDA). Verifications of the results by Partial Cells in Cartesian coordinate method numerical simulation have been also made by the experiment results. The model engine head that has two intake valves and transparent cylinder are used in the steady state flow … condition. The tests are conducted by single- and dual- valve open condition with 8mm valve lift in-1470 Pa suction gauge pressure. The comparisons between the PIV and the LDA experiments show almost the same tendencies for mean velocities and turbulence intensities in the whole experimental regien qualitatively and also quantitatively. The differences in the valve open condition are clearly observed in the integral length and time scales that are estimated from the PIV and LDA data respectively. It is shown that the PIV results are useful for verification of numerical results, which agree reasonably with those of experiments. 続きを見る