Experimental Study and Numerical Verification of 3D Thermal Stratified Wake Flow
In this paper, the experiment of thermal shear stratified cylinder wake flow was carried out in a straight flume. The inlet section is divided into two layers including the upper warm water and lower cold water. The measurement section is equipped with Micro ADV and digital thermometer and the automatic tail gate is installed at the end of outlet section to control the water level. The distribution of 3D flow structure and temperature around the cylinder are analyzed based on experimental data. In addition, a modified explicit algebraic Reynolds stress and flux model was used to simulate the complex turbulent flow accounting for buoyancy on the three-dimensional unstructured grids. The computational region was distributed by arbitrary hexahedron grids to fit the complex boundary, and the local grid refinement was also adopted on the interface of warm and cold water, as well as those around the cylinder. The calculations show that the model yields better results.
Xing Linghang Huang Guobing
Hydraulic Research Laboratory, Changjiang River Scientific ResearchInstitute, Wuhan, 430010
国际会议
南京
英文
139-143
2010-09-13（万方平台首次上网日期，不代表论文的发表时间）