《Tab.1 Details of inlet boundary condition under different conditions》

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《Numerical simulation on centrifugal pump compressible flow field with different gas volume fractions》

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In this paper，the optimal operation conditions were selected and a series of gas volume fractions were set as 0，1%，5%，10%，20%and 30%，to study the two-phase flow.The details of different conditions are shown in Table 1，whereαis gas volume fraction，qmg is mass flow of gas，qmlis mass flow of water.And then the total pressure of inlet and outlet was calculated under different conditions by Fluent.The curves about the head and efficiency of gas-liquid two-phase centrifugal pump changing with the increase of the gas volume fraction were drawn as shown in Fig.3.