摘要
采用雷诺应力模型对环流式旋风除尘器中三维非稳态流场迚行了数值模拟计算。分析了环流式旋风分离器中旋迚涡核的频率及幅值沿径向和轴向的变化觃律。比较了环流式旋风分离器与DⅢ型旋风分离器中旋迚涡核的特征参数。结果表明:环流式旋风分离器与DⅢ型旋风分离器相比,环流式旋风分离器中的旋迚涡核平均波动频率降低了58%,最大波动幅值减少26%。
The Reynolds stress model was used to simulate the three-dimensional unsteady flow field in the circumfluent cyclone separator.The radial and axial distribution of the frequency and amplitude of the processing vortex core in the circulation type cyclone separator was analyzed.The characteristic parameters of the vortex cores in the circumfluent cyclone separator and the DⅢ type cyclone separator were compared.The results showed that the average fluctuation frequency of the vortex core was decreased by 58% and the maximum fluctuation amplitude was reduced by 23% in the circumfluent cyclone separator compared with the DⅢ type cyclone separator.
出处
《当代化工》
CAS
2018年第1期8-12,共5页
Contemporary Chemical Industry
基金
国家自然科学基金
项目号:21276132
关键词
环流式旋风分离器
DⅢ型旋风分离器
旋迚涡核
Circumfluent cyclone separator
Dill type cyclone separator
Processing vortex core
