Swimming sheet in a density-stratified fluid
Swimming sheet in a density-stratified fluid
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密度分层流体中的游泳片
DOI:
10.1017/jfm.2019.445
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发表时间:
2019
影响因子:
3.7
通讯作者:
Ardekani, Arezoo M.
中科院分区:
文献类型:
--
作者:
Dandekar, Rajat;Shaik, Vaseem A.;Ardekani, Arezoo M.
In this work, we theoretically investigate the swimming velocity of a Taylor swimming sheet immersed in a linearly density-stratified fluid. We use a regular perturbation expansion approach to estimate the swimming velocity up to second order in wave amplitude. We divide our analysis into two regimes of low () and finite Reynolds numbers. We use our solution to understand the effect of stratification on the swimming behaviour of organisms. We find that stratification significantly influences motility characteristics of the swimmer such as the swimming speed, hydrodynamic power expenditure, swimming efficiency and the induced mixing, quantified by mixing efficiency and diapycnal eddy diffusivity. We explore this dependence in detail for both low and finite Reynolds number and elucidate the fundamental insights obtained. We expect our work to shed some light on the importance of stratification in the locomotion of organisms living in density-stratified aquatic environments.
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DOI:
--
发表时间:
2003
期刊:
影响因子:
--
作者:
J. Yen;Jason B. Brown;D. Webster
通讯作者:
D. Webster
影响因子:
0.5
作者:
G. Wagner;W. Young;E. Lauga
通讯作者:
E. Lauga
影响因子:
2.5
作者:
Campbell, RW;Dower, JF
通讯作者:
Dower, JF
DOI:
10.1017/s002531540003825x
发表时间:
1995-11-01
影响因子:
1.2
作者:
HEUCH, PA
通讯作者:
HEUCH, PA
影响因子:
3.7
作者:
E. Tuck
通讯作者:
E. Tuck