Numerical Calculation of the Dynamic Behavior of Solid Particles through the Inlet Box with Complex Geometry of a Fluid Machine

A finite element method is used to calculate the three-dimensional gas flow field in the inlet box of a large-size fluid machinery,The dynamic behaviors of solid particles through the inlet box are obtained numerically by the 'one way coupling” method .The trajectories of different-sized particles and the distribution of particle positions on the outlet plane of inlet box are investigated.

流体机械复杂形状进气箱内部流场的PAD测量

本文利用三维粒子动态分析仪（３Ｄ－ＰＤＡ），对一具有复杂几何形状的大型风机进气箱内部三维气流场进行了测量。测量结果表明，在进气箱的轴套下方区域以及靠拐弯内测的锥筒进口区域有较大的湍流度值，靠进气箱出口截面上的二次流图谱与一般９００弯道出口的二次流图谱存在差别。