方案详情文
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.
智能文字提取功能测试中
关闭产品配置单
北京欧兰科技发展有限公司为您提供《流体中两个尺度下的热对流的相互作用检测方案(粒子图像测速)》，该方案主要用于其他中两个尺度下的热对流的相互作用检测，参考标准《暂无》，《流体中两个尺度下的热对流的相互作用检测方案(粒子图像测速)》用到的仪器有德国LaVision PIV/PLIF粒子成像测速场仪、Imager sCMOS PIV相机、PLIF平面激光诱导荧光火焰燃烧检测系统。
我要纠错
推荐专场
CCD相机/影像CCD
更多
相关方案
咨询