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iDEA: Drexel E-repository and Archives > Drexel Academic Community > College of Engineering > Department of Civil, Architectural,and Environmental Engineering > Proceedings of the 7th International Conference on HydroScience and Engineering (ICHE 2006) [ISBN: 0977447405] > Phenomenon observation of selective withdrawal of bottom density currents through a line sink

Please use this identifier to cite or link to this item: http://hdl.handle.net/1860/1384

Title: Phenomenon observation of selective withdrawal of bottom density currents through a line sink
Authors: Liu, Chien-Jung
Hsu, Shaohua Marko
Yu, Wei-Sheng
Keywords: Flow measurements;Experimental hydraulics
Issue Date: 11-Sep-2006
Publisher: Michael Piasecki and College of Engineering, Drexel University
Citation: Proceedings of the Seventh International Conference on Hydroscience and Engineering, Philadelphia, PA, September 2006. http://hdl.handle.net/1860/732
Abstract: A rectangular flume of dimension 180cm long × 40cm high × 5cm wide was used to observe the flow condition of density current withdrew by a line sink. Saline water is used as dense fluid to form a bottom density current. Red color is applied for dyeing dense fluid for observing the interface which is between lower-layer flow and upper-layer flow of the two-layer flow system. The vertical concentration profile of density current, the entry angle which between the interface and the centerline of the slot, and the outflow concentration are measured after the equilibrium state is reached. The thicknesses of lower-layer flow with high concentration and entry angles were studied, which had been discussed via theoretical reasoning but not experimental data in selective withdrawal. The former has an asymptotic value as concentration over a critical value in each inflow discharge. The latter are close to theoretical values calculated by the equation of Forbes and Hocking (1998) especially when the entry angle is small.
Description: Paper presented at The Seventh International Conference on HydroScience and Engineering (ICHE)hosted by the College of Engineering at Drexel Univeristy on September 10-13, 2006 in Philadelphia, Pennsylvania. The conference theme was IT in the Field of HydroSciences. It included several mini-symposia that emphasized IT topics in HydroSciences and the yearly meeting of the metadata group of the International Oceanographic Data and Information Exchange organization.
URI: http://hdl.handle.net/1860/1384
ISBN: 0977447405
Appears in Collections:Proceedings of the 7th International Conference on HydroScience and Engineering (ICHE 2006) [ISBN: 0977447405]

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