赵亚飞,范怡平,吕涵,王康松

• 1:中国石油大学(北京)机械与储运工程学院

摘要(Abstract)：

将空气动力学的理论和场论用于分析、量化气固下行床内颗粒浓度不均匀分布。通过理论分析,结合文献中所给出实验数据,获得了下行床内Kutta-Joukowski横向力的表达式F_(K-J)=-ρ_g(ν_p-ν_g)(?p/?r)r,并给出了Kutta-Joukowski横向力在下行床内的分布;分析了操作条件对Kutta-Joukowski横向力分布特性的影响。结果表明,局部Kutta-Joukowski横向力是下行床内颗粒浓度沿径向分布不均匀的主要原因,其作用方向由低密度区指向高密度区。根据分析结果,给出了下行床内F_(K-J)的经验关联式。

关键词(KeyWords)： 流体动力学;两相流;下行床;Kutta-Joukowski横向力;公式化

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 赵亚飞,范怡平,吕涵,王康松

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