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Statistical Charactaristics of a Turbulent Boundary Layer over a d-type Rough Surface

Memoirs of the Faculty of Engineering, Yamaguchi University Volume 37 Issue 2 Page 205-212

published_at 1987

KJ00000156635.pdf

[fulltext] 541 KB

Title

d 形粗面上の境界層の統計的性質

Statistical Charactaristics of a Turbulent Boundary Layer over a d-type Rough Surface

Creators Mochizuki Shinsuke

Creators Sakamoto Masami

Creators Osaka Hideo

Source Identifiers

Measurments have been made to study the statistical charactaristics of a turbulent boundary layer over a d-type rough surface at a momentum thickness Reynolds number of R_θ≒5000 at which the skin friction coefficient took a constant value. Results showed that both the skewness and flatness factors of the three components of the fluctuating velocity for the outer layer in the present rough boundary layer were significantly different from those of smooth surface turbulent boundary layer. The spectra of u, v, w and uv show the inertial subrange relation (&acd

Subjects

機械工学 ( Other)

Languages jpn

Resource Type departmental bulletin paper

Publishers 山口大学工学部

Date Issued 1987

File Version Version of Record

Access Rights open access

Relations

[ISSN]0372-7661

[NCID]AN00244228

Schools 工学部