The Fluid Dynamics of Parachute Inflation
The Fluid Dynamics of Parachute Inflation
复制标题
降落伞充气的流体动力学
DOI：
10.1146/annurev.fl.28.010196.002045
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发表时间：
1996
影响因子：
27.7
通讯作者：
C. Peterson
中科院分区：
文献类型：
--
作者：
C. Peterson
现代降落伞的充气包括经典流体动力学中的几种最复杂的现象，例如多孔、钝体空气动力学;响应于周围流场而快速改变形状的高度可变形结构;以及由降落伞和有效载荷的快速减速引起的时间依赖性流动现象。本文综述了降落伞充气过程中流体与结构耦合动力学的物理理解和数值描述的最新进展。本文综述了钝体绕流和降落伞充气模型的实验和计算进展。计算降落伞充气模型的发展已经发展到其潜在价值已被证明的地步，但它们还没有准备好被用作可靠的降落伞设计工具。最终目标是在降落伞飞行之前，有信心地预测飞行中降落伞的完全耦合的时变流体动力学和结构动力学。
The inflation of a modern parachute encompasses several of the most com- plex phenomena in classical fluid dynamics, such as porous, bluff-body aero- dynamics; highly deformable structures that change shape rapidly in response to the surrounding flow field; and time-dependent flow phenomena caused by the rapid deceleration of the parachute and payload. This article summarizes recent progress made in physically understanding and numerically describing the coupled fluid and structural dynamics of parachute inflation. Experimental and computational advances in the modeling of bluff-body flows and parachute infla- tion are reviewed. The development of computational parachute inflation models has progressed to the point where their potential value has been proved, but they are not yet ready to be used as trusted parachute design tools. The ultimate goal is to predict with confidence the fully coupled time-dependent fluid dynamics and structural dynamics of parachutes in flight before flying them.