Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4993114 | International Journal of Heat and Fluid Flow | 2017 | 12 Pages |
Abstract
The effect of channel size is inferred to associate with the fractions of turbulent Stokes layer thickness to half-height of channels. In mini-channels, the turbulence Stokes layer is almost filled the entire flow area. As channel height increasing, the turbulence, which generated in near wall layer, cannot timely propagates into pipe core region before decaying-which cause the impact of superimposed unsteadiness fades rapidly. The effect of dimensionless frequency is interpreted as the response time of fluid to the rapid changes of pulsatile pressure gradient.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
Nailiang Zhuang, Sichao Tan, Hongsheng Yuan, Bonan Yang,