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个人信息Personal Information
副教授 硕士生导师
招生学科专业:
航空宇航科学与技术 -- 【招收硕士研究生】 -- 能源与动力学院
能源动力 -- 【招收硕士研究生】 -- 能源与动力学院
性别:男
毕业院校:南京航空航天大学
学历:博士研究生毕业
学位:工学博士学位
所在单位:能源与动力学院
办公地点:A10-626
电子邮箱:
A Multifidelity Simulation Method for Internal and External Flow of a Hypersonic Airbreathing Propulsion System
点击次数:
影响因子:2.66
DOI码:10.3390/aerospace9110685
发表刊物:Aerospace
关键字:hypersonic airbreathing propulsion system; external and internal flow; quasi-onedimensional model; multifidelity simulation method
摘要:As hypersonic vehicles are highly integrated, a multifidelity simulation method based on
a commercial solver is developed to reduce simulation time for such vehicles and their propulsion
systems. This method is characterized by high-level fidelity numerical analysis of external flow and
low-level fidelity numerical analysis of internal flow. The external flow of a propulsion system is
solved by RANS equations. The internal flow is modeled by a quasi-one-dimensional equation. The
interaction between external and internal flow is governed by a CFD solver through a user-defined
function (UDF). The static pressure distribution acquired from the multifidelity simulation method is
in agreement with the experimental data, indicating that this simulation method can be used to study
the flow physics of hypersonic propulsion systems at a reasonable cost. From a design perspective,
the results indicate that the horizontal force increases with the fuel equivalence ratio, and the thrust
balance is realized at ' = 0.35. The positive net thrust is maintained throughout the flight regime
from Ma 4 to Ma 7, whether the combustor operates in ramjet or scramjet mode
论文类型:期刊论文
学科门类:工学
文献类型:J
卷号:9
期号:685
是否译文:否
发表时间:2022-11-03
收录刊物:SCI、SCIE
合写作者:张锦昇,匡正
通讯作者:袁化成,袁化成