期刊
PHYSICS OF FLUIDS
卷 22, 期 5, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3430607
关键词
external flows; Korteweg-de Vries equation; stratified flow
资金
- Research Grants Council [HKU 712008E]
Transcritical flow of a stratified fluid over an obstacle, or through a contraction, can be modeled by the forced Korteweg-de Vries equation, which describes a balance among weak nonlinearity, weak dispersion, and small forcing effects. Here we seek steady solutions with constant but different amplitudes upstream and downstream of the forcing region. Our interest is in the case when the forcing has negative polarity, which represents a hole. The effects of the width of the hole and the amplitude of the hole on these steady solutions are investigated. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3430607]
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