Numerical Simulation for Flow in Two-Dimensional Channel

(On Influence of Width and Length of Channel)

Abstract

This paper deals with the two-dimensional steady flow of various rectangular channels with different widths and lengths. The flow in channel was simulated by the numerical analysis and the flow visualization. To solve the numerical calculation, the Navier-Stokes eqation was calculated by a up-wind difference method, and the flow visualization was visualized by dye injection method. The numerical calculation was done for Reynolds numbers between 10 and 300, and the flow visualization was carried out for Reynolds numbers more wide ranging from 30 to 700. To verify the validity of the calculation results, the results obtained by numerical solution were compared with those of the flow visualization, and effects of the variations of the channel shape and of Reynolds number on the flow in channel were clarified.