期刊
THEORETICAL AND APPLIED MECHANICS LETTERS
卷 9, 期 6, 页码 403-408出版社
ELSEVIER
DOI: 10.1016/j.taml.2019.06.005
关键词
Arrested salt wedge; Internal hydraulics; Shear layer; Asymmetry
类别
资金
- Natural Sciences and the Engineering Research Council (NSERC) of Canada
The spatial variation in the properties of an arrested salt wedge have been investigated, both analytically and in the laboratory. In the laboratory particle image velocimetry and laser induced fluorescence were used to obtain flow velocities and the height of the density interface. An analytical solution for the profile of interface height, in the absence of interfacial instabilities, has been developed from two-layer internal hydraulic theory. The evolution of the velocity profile is predicted using a momentum diffusion equation following a Lagrangian frame of reference along the interface of the salt wedge. The centre of the shear layer is predicted to lie above the density interface, with this offset decreasing in the downstream direction. Our theoretical predictions are in good agreement with our laboratory measurements. (C) 2019 The Authors. Published by Elsevier Ltd on behalf of The Chinese Society of Theoretical and Applied Mechanics.
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