航天器环境工程2026，Vol.43Issue(1)：43-53,11.DOI:10.12126/see.2025123
低气压风速标定方法误差的仿真研究
Simulation study on calibration errors of wind speed measurement methods at low pressures
摘要
Abstract
High-accuracy wind speed calibration under low-pressure conditions is a critical technical requirement for the development and environmental verification of Mars probes and stratospheric vehicles.To address the difficulty in evaluating wind speed calibration errors under such conditions,this study establishes a rotating flow field sliding-mesh model for the rotational calibration method and a submerged-jet wind speed model for the submerged-jet calibration method,and conducts simulations using computational fluid dynamics(CFD)methods.The results indicate that the primary error of the rotational calibration method is caused by gas entrainment.At a wind speed of 15 m/s,the entrainment-induced error can exceed 1.0 m/s.By applying a transient calibration strategy,the total error can be reduced to within 0.5 m/s.For the submerged-jet calibration method,the dominant error originates from non-uniform outlet velocity distributions under low-Reynolds-number conditions.When the wind speed is below 10 m/s,the calibration error is comparable to that of the rotational method.At wind speeds above 15 m/s,the calibration error gradually decreases as the uniform velocity region expands with increasing Reynolds number.The established simulation models and error evaluation methods can provide a reference for the thermal environment testing of Mars probes.关键词
低气压/低密度气体/风速标定/旋转标定/沉没射流标定方法/计算流体力学仿真Key words
low-pressure conditions/low-density gas/wind speed calibration/rotational calibration/submerged-jet calibration method/computational fluid dynamics simulation分类
航空航天引用本文复制引用
李西园,陈逸辰,顾志飞,高庆华,吴东亮..低气压风速标定方法误差的仿真研究[J].航天器环境工程,2026,43(1):43-53,11.基金项目
全国重点实验室基金课题(编号:614200420230301) （编号:614200420230301）
