|Table of Contents|

Experimental study of cavitation in venturi(PDF)

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

Issue:
2015年05期
Page:
54-60
Research Field:
研究与设计
Publishing date:

Info

Title:
Experimental study of cavitation in venturi
Author(s):
TANG Hu1;  BI Qincheng2
1. Xi’an Aerospace Propulsion Institute, Xi’an 710100, China; 2. State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Keywords:
venturicavitationexperimental study
PACS:
V434-34
DOI:
-
Abstract:
Four venturi tubes with different throat diameter were designed. Each venturi was tested at different inlet pressure and same outlet pressure. Heating experiment for a selected venturi was carried out at different temperature. The experimental results show that the venturi flow coefficient has a trend of slow decline with the increase of inlet pressure; the flow coefficient decreases quickly when water temperature reached a certain value; at same inlet pressure and outlet pressure, the larger the throat diameter is, the greater the cavitation area becomes; the higher the inlet pressure is, the greater the cavitation area; when water is heated in certain temperature range, the cavitation area doesn't vary remarkably. In addition, the cavitation area of venturi presented periodic variation during the experiment. The numerical simulation for flow field of a selected venturi was carried out, and the results were compared with those of the experiment. The results show that

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