Unsteady Fluid Flow Analysis as Applied to the Internal Flow in a Pump Using ANSYS CFX

Recent years have shown a growth in the utilization of virtual analysis models in the early part of the product development cycle. This approach had been considered a more efficient method of developing a product, since it reduces the number of prototypes required, hence, reducing actual development cost and it expediates market release. Since the introduction of a PC cluster in our company, we had been able to execute larger scale analysis with an increase in calculation speed. It also became possible to analyze the internal flow in a pump using unsteady state with sufficient accuracy. There were some incidents wherein steady state fluid flow prediction in not applicable. This report introduces some examples comparing analysis results with experimental data as applied to some of our company’s products.

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