We propose a flux vector splitting (FVS) for the solution of film flows radially spreading on a flat surface created by an impinging jet using the shallow-water approximation. The governing equations along with the boundary conditions are transformed from the physical to the computational domain and solved in a rectangular grid. A first-order upwind finite difference scheme is used at the point of the shock while a second-order upwind differentiation is applied elsewhere. Higher-order spatial accuracy is achieved by introducing a MUSCL approach. Three thin film flow problems (1) one-dimensional dam break problem, (2) radial flow without jump, and (3) radial flow with jump, are investigated with emphasis in the prediction of hydraulic jumps. Results demonstrate that the method is useful and accurate in solving the shallow water equations for several flow conditions.
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March 2003
Technical Papers
Analysis of Thin Film Flows Using a Flux Vector Splitting1
J. Rafael Pacheco, Mem. ASME, Assistant Professor,,
J. Rafael Pacheco, Mem. ASME, Assistant Professor,
Departamento de Ingenieria´ Meca´nica, Instituto Tecnolo´gico de Monterrey, Monterrey, NJ 64849, Me´xico
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Arturo Pacheco-Vega, Mem. ASME, Visiting Assistant Professor,
Arturo Pacheco-Vega, Mem. ASME, Visiting Assistant Professor,
Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN 46556
Search for other works by this author on:
J. Rafael Pacheco, Mem. ASME, Assistant Professor,
Departamento de Ingenieria´ Meca´nica, Instituto Tecnolo´gico de Monterrey, Monterrey, NJ 64849, Me´xico
Arturo Pacheco-Vega, Mem. ASME, Visiting Assistant Professor,
Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN 46556
Contributed by the Fluids Engineering Division for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received by the Fluids Engineering Division December 15, 1999; revised manuscript received October 11, 2002. Associate Editor: Y. Matsumoto.
J. Fluids Eng. Mar 2003, 125(2): 365-374 (10 pages)
Published Online: March 27, 2003
Article history
Received:
December 15, 1999
Revised:
October 11, 2002
Online:
March 27, 2003
Citation
Pacheco, J. R., and Pacheco-Vega, A. (March 27, 2003). "Analysis of Thin Film Flows Using a Flux Vector Splitting." ASME. J. Fluids Eng. March 2003; 125(2): 365–374. https://doi.org/10.1115/1.1538626
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