Flow Structure Downstream of Reattachment Point for Backward-Facing Step Flows : Part 1. The Effect of the Reynolds Number

後向きステップ流れの再付着点下流の流れ特性 : その1. レイノルズ数の影響

Flow Structure Downstream of Reattachment Point for Backward-Facing Step Flows : Part 1. The Effect of the Reynolds Number

Creators Sumida Tetsuya

Creators Murakami Fumio

Creators Osaka Hideo

The effect of Reynolds number on the turbulent structure downstream of the reattachment region of a backward-facing step has been examined using wall pressure profile, mean velocity data and entrainment rate distributions. A range of Reynolds number R_h is about 7900 to 39700. The reattachment length X_R/h increases in a continuous manner as Reynolds number increases. The redevelopment process of the boundary layer downstream of reattachment point quickly changes as Reynolds number decreases.

[ISSN]0372-7661

[NCID]AN00244228