Numerical Simulation and Experiment on Thin-Shell Object Separation from Aircraft

Numerical Simulation and Experiment on Thin-Shell Object Separation from Aircraft

Liang Shibo（梁世波）*，Wang Yang（王阳），Xia Jian（夏健）

【摘 要】Abstract：The unsteady aerodynamic loads generated by the thin-shell object separating from aircraft affects flying safety.To investigate the loads，a method combining numerical simulation and experiment is proposed.Eirstly，the motional tendency of the thin-shell object separating from aircraft is calculated，and then the high-speed air blowing test on ground is designed.Thereafter，the external store is employed to avoid colliding with the thin-shell object in air.Einally，the hanging and flight test is conducted by a high-speed unmanned aerial vehicle（UAV），and the feasibility of the thin-shell object separating from aircraft at high speed is proved.Consequently，the separating problem of a thin-shell object with an unconventional aerodynamic configuration is solved，and the collisions with aircraft is prevented. 【期刊名称】南京航空航天大学学报（英文版） 【年(卷),期】2015(032)001 【总页数】8

【关键词】Key words：external stores；thin-shell object；external stores separation；unstructured overset grid

0 Introduction

The external store is an essential supplement to extend the function of