【摘要】 采用CFD软件——Fluent6.2中的雷诺应力湍流模型,对具有不同几何结构的循环旋风分离器气相流场进行数值模拟,以考察循环旋风分离器的几何结构对其流场的影响。模拟结果表明,循环管可以减小不利于气、液相分离的轴向速度并降低压降,防液罩可以在不增加压力损失的情况下增强气、液相分离的主要动力——切向速度,循环旋风分离器存在一个最佳入口直径。更多还原

【Abstract】 In order to inspect the influence of geometry of recycling cyclone on its flow field,Reynolds stress model(RSM) within Fluent 6.2 was used to simulate gas-flow field in recycling cyclone with different geometry.The results show that the recycling tube might decrease the axial velocity obstructing gas-liquid separation and depress the pressure drop,the extending skirt could increase the tangential velocity which was the main power of completing gas-liquid separation without increasing pressure drop,there is an optimal inlet diameter in recycling cyclone.更多还原