Numerical simulation of shaped tube of high pressure jet tube
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Abstract:
shaped tube has been widely used recently，but complex stress distribution in the pipeline has bought a lot of problems for design and construction。It often occurs the pipe cracking in the practicle, which causes many negative effects such as water and electricity discountinued.so it is necessary to carry out computer simulation analysis before design and construction. It has been simulation analysised with the finite element analysis software fluent。It had studied pipeline internal fluid velocity and pressure distribution of shaped pipe in the case of steady flow and unsteady flow。The simulation results show that fluid velocity of steady flow show maximum value in the middle of variable diameter pipe and pressure minimum, and for unsteady flow in the entrance, pressure maximumin the transition segment one-third.in the entrance section pressure is the first small to big and small，but it is big then small big in the exit。
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