arrow
返回

Pumping using thermal waves

delete2023-07-06
delete4
delete
OA
AI
Z
Z. Hossain *
J
J. M. Floryan
DOI:10.1017/jfm.2023.458delete
delete原文链接
delete原文求助
delete分享
delete收藏
摘要

摘要

En 中文
It is shown that thermal waves applied on the bounding surface of a horizontal slot generate a pumping effect. Reynolds stress developed by the change in the flow field due to the thermal inertia associated with the penetration of the wave into the fluid interior drives the net fluid movement in the horizontal direction. The induced flow rate increases with the wave speed, but excessive wave speed reduces it as convection becomes limited only in the near-wall area. The excessive increase of the wavelength and its excessive decrease reduce the flow rate. An increase in the wave amplitude increases the flow rate with a saturation limiting its growth. Judicious selection of the wave speed and wavelength of a thermal wave provides a means for optimizing the wave-induced pumping. The magnitude of the pumping increases with a reduction of Prandtl number.
Keyword:
drag reduction

期刊

Journal of Fluid Mechanics 封面图
Journal of Fluid Mechanics
IF:
3.9
论文数:
2.0W
被引数:
9.4W

机构

W
western university (university of western ontario)
学者数:
2.9W
论文数: 2.7W
被引数: 33
引用论文

引用论文

Pressure losses in grooved channels
err2013-05-14
err75
PREAI
errMohammadi, A.; Floryan, J. M.
err分享
err收藏
Natural convection and pattern interaction in a two-dimensional vertical slot
err2022-08-03
err4
errOAAI
errFloryan, J. M.; Wang, W.; Panday, S.; Bassom, Andrew P.
err分享
err收藏
Experiments on thermal drift
err2021-08-18
err19
PREAI
errInasawa, A.; Hara, K.; Floryan, J. M.
err分享
err收藏
Fluid transport in thin liquid films using traveling thermal waves
err2013-07-01
err13
PREAI
errMao, Wenbin; Oron, Alexander; Alexeev, Alexander
err分享
err收藏
Generation of zonal flows in convective systems by travelling thermal waves
err2021-02-23
err15
errOAAI
errReiter, Philipp; Zhang, Xuan; Stepanov, Rodion; Shishkina, Olga
err分享
err收藏
How phosphorus limitation can control climate-active gas sources and sinks
err2017-06-01
err0
errOAAI
errNathalie Gypens; Alberto V. Borges; Caroline Ghyoot
err分享
err收藏
Performance of flapping foil propulsion扑翼推进的性能
err2005-10-01
err243
PREAI
errSchouveiler, L; Hover, FS; Triantafyllou, MS
err分享
err收藏
Building a better snail: Lubrication and adhesive locomotion
err2005-11-28
err95
errOAAI
errChan, B; Balmforth, NJ; Hosoi, AE
err分享
err收藏
err分享
err收藏
学者 查看更多内容