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Numerical simulation of two-phase flow and study on effect of interior structure parameter of cavitation nozzle(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2015年02期
Page:
79-86
Research Field:
研究与设计
Publishing date:

Info

Title:
Numerical simulation of two-phase flow and study on effect of interior structure parameter of cavitation nozzle
Author(s):
XIONG Li-fang;  LIN Yuan;  WANG Peng-wu;  WANG Yi-jie
Xi’an Aerospace Propulsion Institute, Xi’an 710100, China
Keywords:
cavitation nozzletwo-phase flownumerical simulation
PACS:
V433.9-34
DOI:
-
Abstract:
The cavitation nozzle is widely used in controlling and adjusting the liquid flux of the liquid rocket engine. According to the difficulty occurred in practice apolegamy of cavitation nozzle in a liquid rocket engine, the growth process and break phenomenon of the water bubble in the cavitation nozzle was studied, and the operating characteristics of the cavitation nozzle was attained by means of CFD two-phase flow numerical simulation method. The simulation results and the water test results are compared. The difference between them is small, which provides the theoretical and technical support for solving the actual question. The cavitation characteristics of the cavitation nozzle throat after setting beeline segment in it was simulated. The relative pressure loss can be reduced about 2% by the beeline segment in it. The effect of the cavitation nozzle's interior structure parameter on

References:

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