基于CFD的Z形弯管流场模拟分析及其结构优化

Flow Field Simulation Analysis and Structural Optimization of Z-shaped Bend Pipe Based on CFD

采用国标弯头建立符合实际情况的Z形弯管模型,运用CFD软件的CFX模块对Z形弯管的流场进行模拟,通过CFX后处理得到压力云图、速度矢量图、速度流线图以及速度和压力等值面图,由此定性分析了液流在流经Z形弯管时产生能耗的原因,并根据模拟结果提出了Z形弯管在几何结构上的优化措施,实现了降低能耗和节省成本的目的。

Using International Standard elbow establishes a realistic model of the Z-shaped bend pipe, and CFX module applying CFD software simulate the flow field of Z-shaped bend. Through CFX and processed, the figure of pressure contour, velocity vector, velocity particle path lines, ISO-surfaces of velocity and pressure are obtained, thus reasons for the energy generated when the liquid flows the Z-shaped bend pipe are qualitatively analysed. According to simulation results, improvement measures on the geometric structure of the Z-shaped bend pipe are put forward, which achieves the goal for reducing energy consumption and saving costs.