| 跨音速粘流的计算 |
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| 引用本文： | 朱自强,马侠,陈炳永.跨音速粘流的计算[J].航空学报,1991,12(10):483-493. |
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| 作者姓名： | 朱自强 马侠 陈炳永 |
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| 作者单位： | 北京航空航天大学
(朱自强，马侠)，北京航空航天大学(陈炳永) |
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| 摘 要： | 概述了一种采用粘流/无粘流相互作用原理计算跨音速粘流的方法。采用熵修正激波算子计及跨越激波时的熵增,形成的非等熵位势方法可比传统的位势方法更准确地计算无粘流动。提出了一种流向速度型,结合其它辅助关系式导出了三维湍流边界层积分方程反方法。用此方法可求得粘流解。利用半反耦合方式耦合了无粘流和粘流解。数值算例表明,计算结果与实验结果吻合;且对计算机的要求较低。
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| 关 键 词： | 跨音速流 边界层 非等熵位势流 粘流/无粘流相互作用 |
THE COMPUTATION OF TRANSONIC VISCOUS FLOW |
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| Beijing University of Aeronautics and Astronautics Zhu Ziqiang,Ma Xia and Chen Bingyong.THE COMPUTATION OF TRANSONIC VISCOUS FLOW[J].Acta Aeronautica et Astronautica Sinica,1991,12(10):483-493. |
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| Authors: | Beijing University of Aeronautics and Astronautics Zhu Ziqiang Ma Xia and Chen Bingyong |
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| Institution: | Beijing University of Aeronautics |
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| Abstract: | A transonic viscous flow computational method is described by using viscous/inviscid interaction technique. A shock point operator is introduced to account for the entropy change a(?)ross the shock and a nonisentropic full potential method is formulated to allow a more accurate inviscid flow computation. A new streamwise velocity profile is proposed. Based on this profile and other auxiliary relationship, a three dimensional inverse integral compressible turbulent boundary layer method is for-mulated.The inviscid and viscous solution are coupled with semi-inverse scheme.The numerical results show that this viscous/inviscid interaction method is in good agreement with experimental data and requires less computer resources. |
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| Keywords: | transonic flow boundary layer noniseatropic flow viscous/iaviseid inter- action |
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