Erosion Simulation and Bionic Optimization Design of Titanium Alloy Elbow Pipe
In view of the problems such as leakage and rupture caused by erosion wear and corrosion,the influence of bending angle,curvature radius,fluid velocity,particle size and mass flow on the maximum erosion rate of titanium alloy elbow pipe are analyzed by finite element simulation software in this paper.The simulation results show that the area prone to erosion wear is mainly distributed in the outer area of the inner wall of the elbow,and with the increase of the bending angle,the position of the area prone to erosion is gradually closer to the outlet.The maximum erosion rate decreases with the increase of curvature redius,the change of maximum erosion rate is more sensitive to the velocity of low velocity fluid.The influence of particle size on the maximum erosion rate is determined by both the quality of sand and the quantity of sand,and the change of particle size does not change the location of the erosion-prone region.The maximum erosion rate increases with the increase of mass flow rate,and eventually tends to be flat.Finally,from the perspective of bionics,using the natural desert red willow bark as the bionic prototype,the structure of the erosion-prone parts is optimized to extend the service life of the titanium alloy elbow pipe.
万方数据
维普
