|Table of Contents|

Numerical analysis of heat-mass transfer analogy for adiabatic film-cooling effectiveness(PDF)

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

Issue:
2021年01期
Page:
62-69
Research Field:
研究与设计
Publishing date:

Info

Title:
Numerical analysis of heat-mass transfer analogy for adiabatic film-cooling effectiveness
Author(s):
YAO Jiaxu1 LUO Ding1 FAN Qing2 ZHANG Ke1 LEI Jiang1 MA Yuan2
(1. State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace, Xi'an Jiaotong University, Xi'an 710049, China; 2. Xi'an Aerospace Propulsion Institute, Xi'an 710100, China)
Keywords:
film-cooling double-jet adiabatic film-cooling effectiveness heat-mass transfer analogy density ratio
PACS:
V231.1
DOI:
-
Abstract:
CFD simulation methods were employed to analyze the double-jet film-cooling structure on a flat plate with the density ratio of 1.5 and 2.5, and the blowing ratio of 0.5 and 1.5, in order to check the validity of heat-mass transfer analogy at different temperature conditions. The streamwise distance(Ds/d)between the double-jet holes was 3.0 and the spanwise distance(Dp/d)was 1.0. The film-cooling effectiveness was acquired from heat-transfer and mass-transfer methods. The results show that, the difference in film-cooling effectiveness results from mass transfer and heat transfer methods is rather small. The main reason that leads to the difference between the two methods is the heat conductivity of the fluid.

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Last Update: 2021-02-20