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

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dc.contributor.advisorTezduyar, Tayfun E.
dc.contributor.committeeMemberAkin, John Edward.
dc.contributor.committeeMemberMeade, Andrew J., Jr.
dc.contributor.committeeMemberTakizawa, Kenji
dc.creatorBoben, Joseph
dc.date.accessioned2013-09-16T14:49:09Z
dc.date.accessioned2013-09-16T14:49:15Z
dc.date.available2013-09-16T14:49:09Z
dc.date.available2013-09-16T14:49:15Z
dc.date.created2013-05
dc.date.issued2013-09-16
dc.date.submittedMay 2013
dc.date.updated2013-09-16T14:49:15Z
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.
dc.format.mimetypeapplication/pdf
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>.
dc.identifier.slug123456789/ETD-2013-05-563
dc.identifier.urihttps://hdl.handle.net/1911/71924
dc.language.isoeng
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.
dc.subjectFluid-structure interaction
dc.subjectParachutes
dc.subjectSpace-time techniques
dc.subjectRingsail parachutes
dc.subjectParachute clusters
dc.subjectContact
dc.subjectModified geometric porosity
dc.titleFluid--Structure Interaction Modeling of Modified-Porosity Parachutes and Parachute Clusters
dc.typeThesis
dc.type.materialText
thesis.degree.departmentMechanical Engineering and Materials Science
thesis.degree.disciplineEngineering
thesis.degree.grantorRice University
thesis.degree.levelMasters
thesis.degree.nameMaster of Science
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