Fluid--Structure Interaction Modeling of Modified-Porosity Parachutes and Parachute Clusters

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dc.contributor.advisorTezduyar, Tayfun E.en_US
dc.contributor.committeeMemberAkin, John Edward.en_US
dc.contributor.committeeMemberMeade, Andrew J., Jr.en_US
dc.contributor.committeeMemberTakizawa, Kenjien_US
dc.creatorBoben, Josephen_US
dc.date.accessioned2013-09-16T14:49:09Zen_US
dc.date.accessioned2013-09-16T14:49:15Zen_US
dc.date.available2013-09-16T14:49:09Zen_US
dc.date.available2013-09-16T14:49:15Zen_US
dc.date.created2013-05en_US
dc.date.issued2013-09-16en_US
dc.date.submittedMay 2013en_US
dc.date.updated2013-09-16T14:49:15Zen_US
dc.description.abstractTo increase aerodynamic performance, the geometric porosity of a ringsail spacecraft parachute canopy is sometimes increased, beyond the "rings" and "sails" with hundreds of "ring gaps" and "sail slits." This creates extra computational challenges for fluid--structure interaction (FSI) modeling of clusters of such parachutes, beyond those created by the lightness of the canopy structure, geometric complexities of hundreds of gaps and slits, and the contact between the parachutes of the cluster. In FSI computation of parachutes with such "modified geometric porosity," the flow through the "windows" created by the removal of the panels and the wider gaps created by the removal of the sails cannot be accurately modeled with the Homogenized Modeling of Geometric Porosity (HMGP), which was introduced to deal with the hundreds of gaps and slits. The flow needs to be actually resolved. All these computational challenges need to be addressed simultaneously in FSI modeling of clusters of spacecraft parachutes with modified geometric porosity. The core numerical technology is the Stabilized Space--Time FSI (SSTFSI) technique, and the contact between the parachutes is handled with the Surface-Edge-Node Contact Tracking (SENCT) technique. In the computations reported here, in addition to the SSTFSI and SENCT techniques and HMGP, we use the special techniques we have developed for removing the numerical spinning component of the parachute motion and for restoring the mesh integrity without a remesh. We present results for 2- and 3-parachute clusters with two different payload models. We also present the FSI computations we carried out for a single, subscale modified-porosity parachute.en_US
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationBoben, Joseph. "Fluid--Structure Interaction Modeling of Modified-Porosity Parachutes and Parachute Clusters." (2013) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/71924">https://hdl.handle.net/1911/71924</a>.en_US
dc.identifier.slug123456789/ETD-2013-05-563en_US
dc.identifier.urihttps://hdl.handle.net/1911/71924en_US
dc.language.isoengen_US
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.en_US
dc.subjectFluid-structure interactionen_US
dc.subjectParachutesen_US
dc.subjectSpace-time techniquesen_US
dc.subjectRingsail parachutesen_US
dc.subjectParachute clustersen_US
dc.subjectContacten_US
dc.subjectModified geometric porosityen_US
dc.titleFluid--Structure Interaction Modeling of Modified-Porosity Parachutes and Parachute Clustersen_US
dc.typeThesisen_US
dc.type.materialTexten_US
thesis.degree.departmentMechanical Engineering and Materials Scienceen_US
thesis.degree.disciplineEngineeringen_US
thesis.degree.grantorRice Universityen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMaster of Scienceen_US
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