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再入钝头体近尾流动计算 被引量:2

CALCULATION OF THE NEAR WAKE FLOW FOR THE ENTRY BLUNT BODY
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摘要 本文采用联立求解粘性剪切层和有旋无粘区的方法计算了再入钝头体层流近尾流场。有旋无粘区采用有旋特征线法计算。粘性剪切层采用改进的流管法计算,这两个区域间的基本流线上的压力、温度、速度等由两个区域迭代匹配确定,粘性剪切层的下边界区分流线采用实验确定,回避了回流区复杂计算,计算结果与有关试验和文献一致。本文的目的是提供远尾流计算所需的颈部初始剖面。 The near wake flow fields are calculated by simultaneously solving the viscous shear layer and the inviscid rotational region. The inviscid rotational region is solved by the use of rotational characteristics. However the viscous shear layer is calculated using the improved stream tubes. The presure, tempreture and velocity etc on the basic streamline streamline between these two regions are matched by the iteration method. The dividing streamline for the lower boundary region of the free shear layer is determined using the experiment, in order to avoid the complex calculation of the inverse region. The calculation results are agreement with the relative experiment and the references. The objective of the paper is to provide the primary profile of the neck for calculating the far wake.
出处 《宇航学报》 EI CSCD 北大核心 1995年第3期69-75,共7页 Journal of Astronautics
关键词 钝头体 近尾流 计算 空气动力学 粘性剪切层 Blunt body Near wake Calculation
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参考文献7

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同被引文献18

  • 1周学华,竺乃宜.高超声速小钝锥尾流化学非平衡辐射研究[J].空气动力学学报,1996,14(3):274-280. 被引量:6
  • 2南英,严辉,陈士橹.负升力返回时航天器的再入走廊与轨迹研究[J].飞行力学,1996,14(2):1-7. 被引量:1
  • 3吴建明,高本庆.再入飞行物等离子体尾迹RCS的计算[J].电波科学学报,1997,12(1):26-32. 被引量:7
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