| 基于CFD数值模拟的拉瓦尔喷管流场分析 |
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| 引用本文： | 王平,李昌平,陈柏松.基于CFD数值模拟的拉瓦尔喷管流场分析[J].航空计算技术,2012(4):60-62. |
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| 作者姓名： | 王平 李昌平 陈柏松 |
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| 作者单位： | 空军航空大学航空机械工程系 |
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| 摘 要： | 结合一维等熵管流理论,采用CFD方法对某型拉瓦尔喷管典型工作的流场进行整场数值模拟,阐述了网格生成,流场初始化,以及RNG湍流模型使用方法,并对拉瓦尔喷管工作特性进行了气动分析。研究表明,CFD计算结合一维管流理论能明显提高计算效率,数值计算结果与理论相符较好。
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| 关 键 词： | 流场 拉瓦尔喷管 网格生成 数值分析 初始化 |
Laval Nozzle Flow Analysis Based on CFD Computation |
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| WANG Ping,LI Chang-ping,CHEN Bai-song.Laval Nozzle Flow Analysis Based on CFD Computation[J].Aeronautical Computer Technique,2012(4):60-62. |
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| Authors: | WANG Ping LI Chang-ping CHEN Bai-song |
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| Institution: | (Department of Aeronautical Mechanical Engineering,Aviation University of Air Force,Changchun 130022,China) |
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| Abstract: | Combined with one-dimensional isentropic flow theory,CFD methods are used to simulate the whole flow field of a certain Laval nozzle under the typical operations.The paper describes the gird generation,flow field initialization and RNG turbulence model application;furthermore,it analyzes the nozzle aerodynamic characteristics.Investigations show that computational efficiency is significantly improved by combining CFD with one-dimensional flow theory.The numerical results match well with the theory. |
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| Keywords: | flow field Laval nozzle grid generation numerical analysis initialization |
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