CAJ | 학술논문

航天飞行器以高马赫数飞行时，由于边界层的复杂流动将产生强烈的脉动压力环境。由此会引发仪器设备强烈的振动与噪声环境，从而大大降低了系统的可靠性，甚至导致飞行失败。长期以来，国内外在飞行器脉动压力预示方面开展了大量的理论分析、数值计算与试验研究，取得了一定的成果。随着计算流体力学和脉动压力计算方法的日趋成熟，数值方法正日益成为脉动压力环境预测的主要工具。针对飞行器脉动压力环境的基本特征，对目前常用的脉动压力数值计算方法和现有研究成果进行了较为全面的介绍，对新一代航天飞行器的研制提供了一定的参考依据。
항천비행기이고마혁수비행시，유우변계층적복잡류동장산생강렬적맥동압력배경。유차회인발의기설비강렬적진동여조성배경，종이대대강저료계통적가고성，심지도치비행실패。장기이래，국내외재비행기맥동압력예시방면개전료대량적이론분석、수치계산여시험연구，취득료일정적성과。수착계산류체역학화맥동압력계산방법적일추성숙，수치방법정일익성위맥동압력배경예측적주요공구。침대비행기맥동압력배경적기본특정，대목전상용적맥동압력수치계산방법화현유연구성과진행료교위전면적개소，대신일대항천비행기적연제제공료일정적삼고의거。
Spacecraft is enduring rigorous pressure fluctuating environment at high Mach number because of the complex flow of the boundary layer. Strong vibration and noise of the instrument produced by the pressure fluctuations will reduce the reliability, which is one of the sources of flight accident. Prediction of pressure fluctuations has been investigated for a long time on theoretical analysis, numerical computation and experimental research, which plenty of achievements have been acquired. With the increasing perfection of computational fluid dynamics and computational methods of pressure fluctuations, numerical computation is gradually becoming the principal method to predict the pressure fluctuations. Based on fundamental pressure fluctuating environment, an overall review of computational methods and existing results of pressure fluctuations are carried out, which provide some reference on the development of new spacecraft.