|Table of Contents|

Influence of real gas effect on turbine performance under high pressure with simulation(PDF)

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

Issue:
2022年02期
Page:
94-104
Research Field:
目次
Publishing date:

Info

Title:
Influence of real gas effect on turbine performance under high pressure with simulation
Author(s):
ZHANG Pengfei1; LI Xing2; XU Kaifu1; WANG Xiaofeng1; JIN Lu1
(1.Xian Aerospace Propulsion Institute, Xian 710100, China 2.Academy of Aerospace Propulsion Technology,Xian 710100,China)
Keywords:
high pressure turbine real gas effect ideal gas ARK equation compression factor
PACS:
V434.11
DOI:
-
Abstract:
The performance of the main turbine gas of the high thrust afterburning liquid rocket engine deviates from the ideal gas due to the influence of the real gas effect at high pressure, and the turbine performance obtained by the conventional analysis method is somewhat different from the actual situation.In this paper, the three-dimensional flow simulation method and SST turbulence model were used to simulate the turbine performance with the ideal gas of constant properties, ARK gas state equation and NIST refprop real gas properties database, respectively.The turbine performances of methane and oxygen-enriched gas were analyzed and compared with the results of the performance modified by one-dimensional compression factor.The research shows that the simulated turbine performance based on the real gas property data has obvious deviation from that with the ideal gas.The ARK gas state equation can effectively reduce the deviation of the simulated performance, while the correction with the appropriate compression factor has enough accuracy and can be used for engineering.

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