Stress deformation,flow field characteristics and shape optimization of Y type Branch Pipe with Solidworks
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Abstract:
Both Simulation and Flow Simulation modules within Solidworks software were used to build finite element static and CFD numerical simulation for a Y type branch pipe.The Ytype branch pipe was chosen because it was used for the tunnel exit of a water delivery project in Liaoning Province..The results showed that,for the Y type internal crescent rib branch pipe,the large deformation is generally located at the intersection of the two branches and the crescent rib when the rib breadth ratio is≤0.12.The distribution was symmetric around its horizontal axis,and the displacement was large and concentrated.The greater stress was located at the inner center of the rib,the upper and lower sides of the shell near the end of the rib and the junction of main pipe and branch pipe.When the rib breadth ratio was≥0.24,the large deformation was generally located at the intersection of the main pipe and the branch pipe on the upper and lower sides of the branch pipe.It was also symmetrically distributed in the left and right,and the displacement was large and concentrated.The maximum stress was located on the shell,which was near the end of the rib.The width and thickness of the ribs had little effects on the stress of the shell,the flow states of the water and the hydraulic loss in the branch pipe.Increasing the width and thickness of the ribs can effectively reduce the stress of the crescent rib.The results can provide a reference for the design and promotion of similar branch pipes.
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