摘要
通过对适合安装于水平管道的特殊结构的金属管浮子流量计三维湍流流场的数值仿真及实验研究提出一种基于计算流体力学的流量传感器设计方法。流场仿真所需的模型采用GAMBIT来建立,通过FLUNT软件进行仿真,仿真过程中利用受力平衡控制计算精度。数值仿真结果和实验结果比较当浮子受力平衡度误差为9. 5%时,流量误差为0. 944%,证实了仿真结果的准确性,同时利用流场仿真信息对流量传感器模型做了进一步的优化。
Based on the computational fluid dynamics, a design method for flow meter is given through numerical simulation and experiment on metal tube rotameter with special structure fixed on the level piping. The model of simulation is created by GAMBIT, simulated with FLUNT, and the calculate precision is controlled through balance on forces in the process of simulation. By comparing the result of simulation with experiment, when the difference of balance force on floater is 9.5%, the difference of flow rate is 0.944%, which verifies simulation result. The simulation flow field of metal tube rotameter is also employed to optimize the sensor model.
出处
《化工自动化及仪表》
EI
CAS
2005年第2期67-70,共4页
Control and Instruments in Chemical Industry
