NDLI: Moving velocities of precursor soliton generation in two-layer flow

Content Provider	Springer Nature Link
Author	Zhaoting, Xu Yu, Xu Shan pu Shen, Samual
Copyright Year	1998
Abstract	Based on the AfKdV equation of Xu et al.[1], a theory on the velocities of the precursor soliton generation in two-layer flow over topography is presented in the present paper. Moving velocities of precursor solitons, of the first zero-crossing of the tailing wavetrain and of the flow behind the topography are found theoretically. It is shown that for a given topography, when its moving velocities are at the resonant points, we have the following rules: the ratio of the moving velocity of the precursor solitons to that of the first zero-crossing of the tailing wavetrain equals −4/3. At the same time, the ratio of the width of generating region of the precursor solitons to that of the depressed water region equals also −4/3. The theoretical results are examined by means of numerical calculation. The comparison between the theoretical and numerical results are found in good agreement. For different stratified parameters of two-layer flow, the velocities of the precursor soliton generation are also predicted in terms of the present theoretical results.
Starting Page	289
Ending Page	296
Page Count	8
File Format	PDF
ISSN	05677718
Journal	Acta Mechanica Sinica
Volume Number	14
Issue Number	4
e-ISSN	16143116
Language	English
Publisher	Springer-Verlag
Publisher Date	1998-01-01
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	soliton AfKdV equation two-layer flow generating velocity Mechanics, Fluids, Thermodynamics Numerical and Computational Methods in Engineering Theoretical and Applied Mechanics Engineering Fluid Dynamics
Content Type	Text
Resource Type	Article
Subject	Mechanical Engineering Computational Mechanics

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