3-D Numerical Simulation on Unsteady Turbulent Flow of Rotational Flow Self-Priming Pump

Chun Lin Wang; Tian Fang Zhang; Chun Lei Zhao; Dong Liu

doi:10.4028/www.scientific.net/AMR.562-564.899

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 562-5643-D Numerical Simulation on Unsteady Turbulent...

3-D Numerical Simulation on Unsteady Turbulent Flow of Rotational Flow Self-Priming Pump

Abstract:

The three-dimensional unsteady turbulent flow of rotational flow self-priming pump was simulated by using Reynolds time-averaged N-S equations and the standard k-ε turbulent model, sliding mesh model of static-dynamic coupled models and SIMPLE arithmetic. The static pressure distribution of the pump central rotative surface and relative velocity of the impeller central rotative surface in a complete application cycle were analyzed. The rule of instantaneous head in a impeller channel cycle was studied, and the positions of maximal head and minimal head were analyzed. It revealed that the unsteady method can truly simulate the changes of the rotational flow self-priming pump interior flow, and the unsteady characteristic of interior flow in rotational flow self-priming pump is obvious and it changes as the relative position of impeller and volute change. The change is periodical, and its frequency is relate to the impeller number and the rotate speed of the pump.

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Periodical:

Advanced Materials Research (Volumes 562-564)

Pages:

899-902

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.562-564.899

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Online since:

August 2012

Authors:

Chun Lin Wang, Tian Fang Zhang, Chun Lei Zhao, Dong Liu

Keywords:

Component, Frequency, Numerical Simulation, Rotational Flow Self-Priming, Turbulent Flow, Turbulent Flow Field, Unsteady

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