A computational framework for parachute inflation is developed based on the immersed boundary/finite element approach within the open-source IBAMR library.The fluid motion is solved by Peskin's diffuse-interface immersed boundary(IB)method,which is attractive for simulating moving-boundary flows with large deformations.The adaptive mesh refinement technique is employed to reduce the computational cost while retain the desired resolution.The dynamic response of the parachute is solved with the finite element approach.The canopy and cables of the parachute system are modeled with the hyperelastic material.A tether force is introduced to impose rigidity constraints for the parachute system.The accuracy and reliability of the present framework is validated by simulating inflation of a constrained square plate.Application of the present framework on several canonical cases further demonstrates its versatility for simulation of parachute inflation.
parachute inflationfluid-structure interactionimmersed boundary methodfinite element methodadaptive mesh refinement
黄云尧、张扬、濮天梅、贾贺、武士轻、周春华
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南京航空航天大学航天学院,南京 211106,中国
航天科技集团航天进入减速与着陆技术实验室,北京 100094,中国
扬州大学电气与能源动力工程学院,扬州 225127,中国
北京空间机电研究所,北京 100096,中国
南京航空航天大学航空学院,南京 210016,中国
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降落伞充气 流固耦合 浸没边界方法 有限元方法 网格自适应
Open Project of Key Laboratory of Aerospace EDLA,CASC
国家科技期刊平台
NSTL
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