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采用计算流体力学(CFD)方法对折流式旋转床气相流场和压力分布进行了模拟,研究了折流式旋转床转速、进气量对转子外侧和内侧气相流场的影响,并用实验数据对模型进行了验证.结果表明,模拟结果与实验数据相对误差在9%以内;气体由转子外侧进入转子内时,流速明显改变,切向速度占总速度的76.1%~99.9%,轴向速度和径向速度均较小.随气体流量和转速增大,切向速度明显增大.气体流出转子内侧时,动圈附近存在一个最低压力和一个最高压力,产生了逆时针旋转和顺时针旋转2个漩涡.两漩涡交界处气体流动较剧烈,靠近转轴处气体存在回流,但速度较小.
The computational fluid dynamics (CFD) method was used to simulate the gas flow field and pressure distribution in a baffled rotary bed. The effects of rotating speed and inlet air volume on the gas flow field outside and inside the rotor were studied. The results show that the relative error between simulation results and experimental data is within 9%. When the gas enters the rotor from the outside of the rotor, the flow velocity changes obviously, the tangential velocity accounts for 76.1% ~ 99.9% of the total velocity, and the axial velocity and Radial velocity are small.With gas flow rate and speed increases, the tangential velocity increases significantly.When the gas flows out of the rotor, there is a minimum pressure and a maximum pressure around the moving coil, resulting in counterclockwise rotation and clockwise rotation of 2 Whirlpool. Two swirling junction gas flow more intense, there is gas near the shaft reflux, but the speed is small.