FEM Analysis of the Pendulum Characteristic of Nature Convection in Dimensional Enclosure
In this paper, the pendulum characteristic of nature convection gas in dimensional enclosure is analyzed by FEM. Using ANSYS-FLOTRAN CFD program, the stream Held and the temperature field caused by the point heat source, when the two-dimensional enclosure is inclined, has been obtained by a series of procedure, such as model building, meshing, loads applying and equation solving. The results are as follow: (1) Under the buoyancy lift affecting, the direction of nature convection gas always keeps the vertical upward in two-dimensional enclosure, nature convection gas has the pendulum characteristic. (2) When the dimensional enclosure is inclined, temperature distribution at the several points in dimensional enclosure will change with the tilt angle. The pendulum characteristic can be utilized to measure the tilt angle by the gas pendulum tilt sensor.
Finite element method Gas pendulum Nature convection Stream field Temperature field
Quangang Yu Linhua Piao Xing Wang
Sensors Technology Research Centre Beijing Information Technology Beijing,100085,China
国际会议
太原
英文
314-317
2011-02-26（万方平台首次上网日期，不代表论文的发表时间）