Numerical Simulation on Flow Structure of a Steam-Jet Pump Influenced by Primary Nozzle Geometries

Abstract:

The aim of the paper is to reveal the flow structure and the mixing process of a steam-jet pump by using a computational fluid dynamics code FLUENT. Discusses the effect on a steam-jet pump’s entrainment ratio when the throat diameter of the primary nozzle as well as the outlet diameter of the primary nozzle is varied. Analyzes the position of shock wave which will bring the steam-jet pump’s performance a great loss. The performances of a steam-jet pump are studied by changing back pressures while the distance between primary nozzle outlet and mixing chamber inlet (DPM) is varied. The entrainment ratios of a steam-jet pump with different values of DPM and different back pressures are calculated.

• Periodical: Applied Mechanics and Materials (Volumes 130-134)
• Pages: 1703-1707
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.130-134.1703
• Online since: October 2011
• Authors: Xiao Chun Dai, Jian Huo
• Keywords: Flow Structure, Fluent, Primary Nozzle, Steam-Jet Pump

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