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Coherent Structure of a d-Type Rough Wall Boundary Layer in a Fully Rough Regime : Results with the Four-Quadrant Analysis

Memoirs of the Faculty of Engineering, Yamaguchi University Volume 42 Issue 2 Page 207-214
published_at 1992-03
KJ00000156886.pdf
[fulltext] 541 KB
Title
完全粗面領域におけるd形粗面境界層の組織構造 : 4象限分割法による解析
Coherent Structure of a d-Type Rough Wall Boundary Layer in a Fully Rough Regime : Results with the Four-Quadrant Analysis
Creators Mochizuki Shinsuke
Creators Osaka Hideo
Source Identifiers
Coherent Structure of a d-type rough wall boundary layer at a fully rough regime has been investigated with the four-quadrant analysis. Fractional stress contribution of the events associated with the bursting phenomenon was quantitatively analyzed and compared with the results at a low Reynolds number. The fractinal stress contribution of the second quadrant (ejection event) decresses with increasing the Reynolds number. The contribution of the violent events was studied and the significant difference of the turbulent structure among d-type rough, k-type rough and smooth wall flows was found.
Subjects
機械工学 ( Other)
Languages jpn
Resource Type departmental bulletin paper
Publishers 山口大学工学部
Date Issued 1992-03
File Version Version of Record
Access Rights open access
Relations
[ISSN]0372-7661
[NCID]AN00244228
Schools 工学部