| Citation: | XU Binbin, WANG Xue, WU Chaojun, et al. Correction method for the effect of tube on the measurements of fluctuation total pressures in inlet[J]. Journal of Aerospace Power, 2022, 37（12）：2719-2728 doi: 10.13224/j.cnki.jasp.20210476
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The fluctuation total pressures in aerodynamic interface plane need be measured in inlet experiments. The tube between the pulsating pressure sensor and the measurement point may lead to larger error between the measurement value and the truth value, and also generate larger effect on the measurement of the turbulence. The experiments in Turbine Power Simulation calibration tank of China Aerodynamics Research and Development Center were performed to research the effect of tube on the measurement of fluctuation total pressure and the turbulence. Experiment results showed that the effect of tube seriously affected the measurement of the fluctuating total pressure and the turbulence. The value of fluctuating total pressure in frequency can be magnified more than 10 times and that of turbulence can be magnified more than 2.8 times. A correction method based on the improved dissipation model was proposed and calibrated, which can effectively reduce the measuring error brought by the tube.
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