Abstract: The finite element method is employed to simulate incompressible
viscous unsteady flow in two-dimensional channel with a sudden
expansion. The streamline patterns and the velocity vector plots
are presented at different expansion ratios and at different
moment. The results obtained have certain significance to
analyze the formation of eddies and energy loss in a sudden
expansion channel flow and other complex channel flow.
Key words: Sudden
expansion channel Finite element method Streamline Velocity
Energy loss
*
This project
is supported by Science and Technology Foundation of Educational
Department of State Administration Machinery Industry of China. Manuscript received on
November 10, 1998; revised manuscript March 29, 1999
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