研究方向：强激波与同向激波诱导的流体界面不稳定性

学术成果一：提出了强激波与同向激波生成新方法，发展了复杂流体界面形成新技术

揭示了非定常复杂波系的传播演化机制，提出了强激波与同向激波的可控生成方法，建立了多功能一体化的激波管实验平台；发展了超疏水-疏油涂层技术、多界面气层方案及聚酯纤维膜界面生成方法，形成了无“侵入式”约束的间断型流体界面。

图1. (a) 基于激波动力学理论的二维激波收缩增强方法; (b) 能够实现高强度激波可控生成的多功能、一体化激波管实验研究平台

图2. (a) 基于特征线理论的复杂激波管流动刻画; (b) 典型时刻的波系、接触间断与流场区域分布; (c) 能够实现同向激波可控生成的激波管实验装置

图3. (a) 超疏水-疏油涂层方法; (b) 多界面气层方案; (c) 聚酯纤维膜界面生成技术

【主要相关论文】

[1] H. Wang, Z. Zhai*, X. Luo. Prediction of triple point trajectory on two-dimensional unsteady shock reflection over single surfaces. J. Fluid Mech. 947: A42, 2022.

[2] H. Wang, Z. Zhai*. On regular reflection to Mach reflection transition in inviscid flow for shock reflection on a convex or straight wedge. J. Fluid Mech. 884: A27, 2020.

[3] Q. Cao, J. Li, H. Wang*, Z. Zhai*, X. Luo. Coupled Richtmyer-Meshkov and Kelvin-Helmholtz instability on a shock-accelerated inclined single-mode interface. 

J. Fluid Mech. 996: A37, 2024.

[4] C. Chen, Y. Xing, H. Wang*, Z. Zhai, X. Luo*. Experimental study on Richtmyer-Meshkov instability at a light-heavy interface over a wide range of Atwood numbers. 

J. Fluid Mech. 975: A29, 2023.

[5] H. Wang, X. Luo*. Revisiting the initial-amplitude effect on Richtmyer-Meshkov instability. Sci. China-Phys. Mech. Astron. 69: 264711, 2026.

[6] S. Jiang#, W. Cai#, J. Xie, D. He, H. Wang*, T. Si*, X. Luo. Realization of a shock-tube facility to study the Richtmyer-Meshkov instability driven by a strong shock wave. Rev. Sci. Instrum. 95: 085114, 2024.

学术成果二：揭示了强激波诱导界面失稳机理，建立了涵盖多物理效应耦合的预测模型

揭示了强可压缩性的影响机制及其诱发的失稳模式转变，阐明了激波邻近、二次压缩、尖钉加速、模态竞争等复杂力学效应间的协同作用机理，构建了系统考量多物理效应耦合的解析模型，实现了高强度激波诱导界面失稳演化全过程的精准预测。

图4. 强激波冲击下中密度比、小振幅、单模界面的典型实验演化图像 (a) 及界面振幅演化的实验与理论结果对比 (b)

图5. 强激波冲击下高密度比界面 (a)、多模界面 (b) 及大振幅界面 (c)的典型实验演化图像

【主要相关论文】

[1] He Wang, Ting Si*. Initial-amplitude dependence of strong-shock-driven interfacial instability in reflected-shock configurations. J. Fluid Mech.Accepted.

[2] Wei Cai, He Wang*, Ting Si. Strong-shock-driven Richtmyer-Meshkov instability at quasi-single-mode interfaces. J. Fluid Mech. 1034: A57, 2026.

[3] S. Jiang, H. Wang*, D. Ma, P. Wang, T. Si, X. Luo. Atwood-number dependence of hydrodynamic instability driven by a strong shock wave. J. Fluid Mech. 1024: A56, 2025.

[4] T. Si, S. Jiang, W. Cai, H. Wang*, X. Luo. Shock-tube experiments on strong-shock-driven single-mode Richtmyer-Meshkov instability. J. Fluid Mech. 1006: R1, 2025.

[5] Y. Xing, C. Chen, J. Li, H. Wang*, Z. Zhai, X. Luo*. Atwood-number dependence of the Richtmyer-Meshkov instability at a heavy-light single-mode interface. 

J. Fluid Mech.1007: A54, 2025.

[6] W. Cai, S. Jiang, H. Wang*, P. Wang, D. Ma, T. Si. Strong-shock-driven Richtmyer-Meshkov instability at a V-shaped interface. Phys. Rev. Fluids 10: 104005, 2025.

[7] H. Wang, H. Wang, Z. Zhai*, X. Luo. High-amplitude effect on Richtmyer-Meshkov instability at a single-mode heavy-light interface. Phys. Fluids 35: 126107, 2023. (Editor’s Pick)

学术成果三：阐明了同向激波诱导界面失稳机理，实现了复杂流动不稳定性的主动调控

揭示了二次冲击条件（界面形态、激波强度等）对流动不稳定性的影响机理，厘清了振幅演化的多重路径及其对应的参数条件，建立了能够精准刻画二次冲击前后扰动发展全过程的解析模型，实现了复杂界面流动不稳定性的有效抑制乃至“冻结”。

图6. (a) 同向激波二次冲击发生于不同界面演化阶段的典型实验图像; (b) 二次冲击后尖钉/气泡振幅演化的实验与理论结果对比

图7. 同向激波二次冲击前后不同密度比界面的扰动振幅演化: (a) 低密度比; (b) 中密度比; (c) 高密度比. 点: 实验结果; 线: 理论预测

【主要相关论文】

[1] H. Wang, Q. Cao, C. Chen, Z. Zhai*, X. Luo. Experimental study on a light-heavy interface evolution induced by two successive shock waves. J. Fluid Mech. 953: A15, 2022.

[2] Y. Xing, Z. Dong, H. Wang*, Z. Zhai, X. Luo. Hydrodynamic instability driven by two co-propagating shock waves across varying Atwood numbers. J. Fluid Mech. 1023: A34, 2025.

[3] Z. Zhai, C. Chen, Y. Xing, J. Li, Q. Cao, H. Wang*, X. Luo. Manipulation of Richtmyer-Meshkov instability on a heavy-light interface via successive shocks. J. Fluid Mech. 1003: A9, 2025.

[4] Q. Cao, C. Chen, H. Wang*, Z. Zhai, X. Luo*. Interface evolution induced by two successive shocks under diverse reshock conditions. J. Fluid Mech.999: A31, 2024.

[5] Y. Xing, Z. Dong, C. Chen, H. Wang*, X. Luo. Hydrodynamic instability under sequential co- and counter-directional reshocks. SCIENCE CHINA Physics, Mechanics & Astronomy, 2026, 69: 274711.

[6] H. Wang, Z. Zhai*, X. Luo, J. Yang, X. Lu. A specially curved wedge for eliminating wedge angle effect in unsteady shock reflection. Phys. Fluids 29: 086103, 2017.

[7] H. Wang, Z. Zhai*, X. Luo. Reflection of a converging shock over a double curved wedge. Shock Waves 31: 439-455, 2021.