Flow Visualization using Tellurium Method and Numerical Calculation in Divergent Pipe

The flow pattern of viscoelastic fluid through a divergent pipe hasn't been clarify at the present time. The purpose of this study is to clarify the flow pattern of a non-Newtonian fluid through a divergent pipe. In this paper, as a basic study, the effects of the variation in the divergent angle of the pipe and the Reynolds number on the flow pattern of water through a divergent pipe are clarified by means of the flow visualization using Tellurium method and the numerical calculation using the COSMOS/M. As a result, it was found that a certain degree of coincidence was obtained between the flow visualization and the calculation, and the flow pattern was affected considerably by the divergent angle of the pipe and the Reynolds number. Furthermore, in this experiment it was found that the flow pattern indicated the more desirable results with the divergent angle 2θ=10°.