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Experimental study of effect of working fluid viscosity on atomization characteristics of a pair of impinging jets(PDF)

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

Issue:
2015年02期
Page:
43-49
Research Field:
研究与设计
Publishing date:

Info

Title:
Experimental study of effect of working fluid viscosity on atomization characteristics of a pair of impinging jets
Author(s):
LI Jia-nan;  FEI-Jun;  ZHOU Li-xin;  YANG Wei-dong
Key Laboratory for Liquid Rocket Engine Technology Xi’an Aerospace Propulsion Institute, Xi’an 710100, China
Keywords:
jet impingingatomization characteristicviscosity coefficientSMDkinematic velocity
PACS:
V434-34
DOI:
-
Abstract:
In order to investigate effect of working fluid viscosity on atomization characteristics of a pair of impinging jets, the atomization experiment of impinging jets of working fluid with various viscosity coefficient was carried out under the condition of open atmosphere. The information of size distribution and velocity distribution of droplets on 10 mm, 20 mm, 30 mm and 40 mm planes at downstream of impinging point was measured with PDPA. The experimental results reveal that the size of droplets at a position of atomization field has the increasing trend and the kinematic velocity has decreasing trend as viscosity coefficient increases, the distance from the impinging point grows while the size of droplets in the atomization field reaches balance, the mean velocity of droplets on a certain plane in downstream

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