| 郭佳才， 刘伟军.电旋风分离器内电晕放电流场的数值模拟[J].轻工机械,2020,38(3):87-91 |
| 电旋风分离器内电晕放电流场的数值模拟 |
| Numerical Simulation of Flow Field under Corona Discharge in Electrostatic Cyclone |
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| DOI：10.3969/j.issn.1005 2895.2020.03.018 |
| 中文关键词: 静电旋风分离器 RSM模型 控制体积法 SIMPLE算法 |
| 英文关键词:electrostatic cyclone reynolds stress model control volume method SIMPLE algorithm |
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| 摘要点击次数: 838 |
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| 中文摘要: |
| 为了探究电旋风除尘器内流场在电晕放电条件下的分布，课题组借助FLUENT软件对其进行数值模拟。建立了静电旋风分离器的单相三维湍流的RSM模型，采用控制体积法对其离散，用SIMPLE算法求解流场分布，得到了一定条件下静电旋风分离器内流场的切向速度和轴向速度分布。结果表明：施加高压电压不会改变切向速度和轴向速度的分布情况，仅改变切向速度和轴向速度的大小，且切向速度的变化大于轴向速度的变化；同时发现，在高压电压条件下能够减小颗粒的回带和提高颗粒的分离效率。 |
| 英文摘要: |
| In order to study the distribution of flow field under corona discharge in electrostatic cyclone, the numerical simulation with FLUENT software was carried out by the research group. A single phase，three dimensional turbulent flow model RSM model of flow field in cyclone was developed. RSM model was dispersed by the control volume method and solved by the SIMPLE algorithm. The axial velocity and tangential velocity profiles in electrostatic cyclone were obtained by numerical simulation.The results show that applying high voltage does not change the distribution of tangential velocity and axial velocity, only changes the size of tangential velocity and axial velocity, and the change of velocity in tangential is greater than the change in axial. At the same time, it is found that under the condition of high voltage, it can reduce the particle return and increase the particle separation efficiency. |
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