Qiang Li, Lei Zhao, Su-Yu Chen, Tao Jiang, Yu Zhuang, Kou-Li Zhang. Experimental study on effect of transverse groove with/without discharge hole on hypersonic blunt flat-plate boundary layer transition [J]. Acta Physica Sinica, 2020, 69(2): 024703-1
- Acta Physica Sinica
- Vol. 69, Issue 2, 024703-1 (2020)
Fig. 1. The Φ 2-mm-diameter cylindrical heat flux sensors.
Φ 2 mm柱状热流传感器
Fig. 2. Schematic diagram of measuring point distribution.平板凹槽测点分布示意图
Fig. 3. Comparison chart of different size grooves.不同尺寸凹槽对比图
Fig. 4. The discharge hole outlet of Groove 4.凹槽4泄流孔出口
Fig. 5. The heat flux measurement and CFD results of the flat centerline.平板中心线热流测量结果与计算结果
Fig. 6. Pressure distribution at the center axis of the discharge hole.泄流孔中心轴线压力分布
Fig. 7. Total temperature distribution of z = 97.5 mm profile
z = 97.5 mm剖面总温分布图
Fig. 8. Total temperature distribution of the symmetry plane of Groove 1.凹槽1中心对称面总温分布图
Fig. 9. Total temperature distribution of the symmetry plane of Groove 4.凹槽4中心对称面总温分布图
Fig. 10. Transverse velocity distribution of the profile x = 110 mm.
x = 110 mm剖面横向速度分布
Fig. 11. The unstable zone of Mack second-mode waves for the cases of –4° attack angle.–4°攻角平板边界层第二模态不稳定区
Fig. 12. Dependence of the optimal energy gain on the computational domain for fixed inlet location (a) and outlet lo-cation (b)固定入口x 0 (a)和出口x 1(b)时不同计算域的最优能量增益
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