Numerical simulation of soft landing for clusters of cargo parachutes

Keith R. Stein; Tayfun E. Tezduyar; Vinod Kumar; Sunil V. Sathe; Richard J. Benney; Richard D. Charles

Numerical simulation of soft landing for clusters of cargo parachutes

Keith R. Stein, Tayfun E. Tezduyar, Vinod Kumar, Sunil V. Sathe, Richard J. Benney, Richard D. Charles

Research output: Contribution to conference › Paper

Abstract

In this paper, we present our methods for simulation of parachute fluid-structure interaction behavior and address some of the modeling challenges that are involved in this class of problems. We use methods which are based on interface-tracking techniques. Accordingly, we use the Deforming-Spatial-Domain/ Stabilized Space-Time (DSD/SST) formulation [1] for our flow computations and a Lagrangian finite element formulation for the parachute deformations [2], with advanced mesh update methods. Here, we focus on parachute soft landing applications, where payloads are retracted towards the parachute just prior to landing to reduce ground impact velocities. While soft landing retraction technology has been demonstrated for single parachutes and light cargos, little is known about the dynamics involved in retraction of large cargos with clusters of parachutes. Results are presented for simulations involving soft landings of cargo with a single parachute and with a cluster of two parachutes.

Original language	English
Publication status	Published - 2004 Dec 1
Externally published	Yes
Event	European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2004 - Jyvaskyla, Finland Duration: 2004 Jul 24 → 2004 Jul 28

Conference

Conference	European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2004
Country	Finland
City	Jyvaskyla
Period	04/7/24 → 04/7/28

Keywords

Fluid-structure interaction
Parachute systems

ASJC Scopus subject areas

Artificial Intelligence
Applied Mathematics

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Stein, K. R., Tezduyar, T. E., Kumar, V., Sathe, S. V., Benney, R. J., & Charles, R. D. (2004). Numerical simulation of soft landing for clusters of cargo parachutes. Paper presented at European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2004, Jyvaskyla, Finland.

Numerical simulation of soft landing for clusters of cargo parachutes. / Stein, Keith R.; Tezduyar, Tayfun E.; Kumar, Vinod; Sathe, Sunil V.; Benney, Richard J.; Charles, Richard D.

2004. Paper presented at European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2004, Jyvaskyla, Finland.

Research output: Contribution to conference › Paper

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AU - Tezduyar, Tayfun E.

AU - Kumar, Vinod

AU - Sathe, Sunil V.

AU - Benney, Richard J.

AU - Charles, Richard D.

PY - 2004/12/1

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N2 - In this paper, we present our methods for simulation of parachute fluid-structure interaction behavior and address some of the modeling challenges that are involved in this class of problems. We use methods which are based on interface-tracking techniques. Accordingly, we use the Deforming-Spatial-Domain/ Stabilized Space-Time (DSD/SST) formulation [1] for our flow computations and a Lagrangian finite element formulation for the parachute deformations [2], with advanced mesh update methods. Here, we focus on parachute soft landing applications, where payloads are retracted towards the parachute just prior to landing to reduce ground impact velocities. While soft landing retraction technology has been demonstrated for single parachutes and light cargos, little is known about the dynamics involved in retraction of large cargos with clusters of parachutes. Results are presented for simulations involving soft landings of cargo with a single parachute and with a cluster of two parachutes.

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