方案摘要
方案下载应用领域 | 其他 |
检测样本 | 其他 |
检测项目 | |
参考标准 | 暂无 |
Dripping convective instabilities develop under a cold thermal boundary layer when the local Rayleigh number exceeds a critical value Rac (Howard, 1966). Their 86 Interaction of two scales of thermal convection in viscous fluids interaction with a shear flow is studied experimentally in a cavity heated from one vertical wall and cooled from above. Rayleigh numbers range between 104 and 108, and Prandtl numbers are greater than 1000. Within this parameter range, a hot horizontal jet develops under the cold boundary. The instabilities dripping from the latter are therefore sheared by the flow and remain trapped in the jet, following a helicoidal path with axis parallel to the jet flow. For high jet velocities compared to the dripping velocity, 2D steady rolls prevail, while for low jet velocities, a 3D structure is observed. A phase diagram and scaling laws for the flow characteristics are determined.
在一个双稳湍流涡旋火焰中,对间歇性动态的时间-频率定位
Particle-laden Taylor-Couette流:高阶转变和径向局部波浪涡旋的证据
7根杆束的流体-结构相互作用:用实验数据对比数值模拟
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