Investigation on inflatable region gas leakage characteristics in high-power radial line array antenna

For the leakage model of high-power radial line array antenna in no pressure difference conditions, equivalent area method is used to equal the seal structure. Numerical simulations are carried out on the leakage process by using software which is based on the finite volume method, and the results are verified by the tightness experiment. Researches show that the numerical simulations are consistent with the experimental trends, proving the correctness of the numerical simulation. The numerical simulation is faster, more cost-effective and can obtain internal gas parameter distribution.