| 跨声速风洞翼型实验洞壁状态的鉴定方法 |
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| 引用本文： | 王树杰.跨声速风洞翼型实验洞壁状态的鉴定方法[J].实验流体力学,1990(2). |
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| 作者姓名： | 王树杰 |
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| 作者单位： | 哈尔滨空气动力研究所 |
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| 摘 要： | 本文叙述了利用近洞壁处实测的两排静压分布,在不同马赫数和零迎角条件下,对沿轴向分段可变开闭比斜孔壁状态的鉴定方法。计算用小扰动压力方程,鉴定结果与实验分析一致。用两排实测近洞壁处静压分布对洞壁状态做鉴定计算,主要优点是不涉及模型附近的复杂流场,可以采用简单的数学模型;不需要实验模型的描述; 便于向三元推广。
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| 关 键 词： | 跨声速洞壁干扰 差分计算 自适应壁风洞 |
AN ASSESSING METHOD OF WALL CONDITION FOR AIRFOIL EXPERIMENT IN THE TRANSONIC WIND TUNNEL |
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| Wang Shujie.AN ASSESSING METHOD OF WALL CONDITION FOR AIRFOIL EXPERIMENT IN THE TRANSONIC WIND TUNNEL[J].Experiments and Measur in Fluid Mechanics,1990(2). |
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| Authors: | Wang Shujie |
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| Institution: | Harbin Aerodynamics Research Institute |
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| Abstract: | In the present paper,a method for assessing the status of the inclined hole perforated wall of non-uniform but variable poros-ity along the longitudinal direction is described by using the meas-uring pressure distributions on two control lines near the wall.at dif-ferent Mach numbers and zero angle of attack.The small perturbationpressure equation is used for the assessing computations.The resultsof the assessment are coincident with the experimental analyses.Themain advantage of the method described in this paper is that only theflow exterior to the tunnel must he determined computationally.Thiscomputational region can be presumed to be inviscid,small disturb-ances and weaken shocks,if any.Also,the preseutation of the testingmodel is unnecessary in this method,it will be easier to exteud thismethod to tlaree dimennional case. |
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| Keywords: | trausonic wall interference differlnce computation adaptive-wall wind tunnel |
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