方案摘要
方案下载应用领域 | 环保 |
检测样本 | 其他 |
检测项目 | 其他>其它 |
参考标准 | 暂无 |
利用LaVision的粒子成像测速(PIV)系统,对海水淡化装置中经场采用的中空纤维膜组件的壳程流体力学减租特性进行了研究
A novel hollow fiber membrane module shell-side model is fabricated,simulated, tested, and analyzed. The mathematical model consists of a six spaced bar-shaped fiber and a vortex-control tangential entrance with protuberance radians. The vortex shedding behavior is captured by the digital particle image velocimetry technique. The velocity vectors and vorticity fields are analyzed experimentally. Meanwhile, the k − ε turbulent model is established to identify the flow stagnate point/region transformation. Investigation of wall shear stress and surface pressure distributions around circular cylindrical fibers illustrate the mechanism of drag reduction tentatively. Afterward, the novel optimization module produces higher recovery
rates of up to 1.56 times as compared to that of a conventional module in equivalent filtration condition. It indicates that by means of a hydrodynamics flow control strategy, the fabricated membrane module structure could potentially improve energy utilization efficiency in filtration processes.
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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