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dc.contributor.advisor Tezduyar, Tayfun E.
dc.creatorBoben, Joseph
dc.date.accessioned 2013-09-16T14:49:09Z
dc.date.accessioned 2013-09-16T14:49:15Z
dc.date.available 2013-09-16T14:49:09Z
dc.date.available 2013-09-16T14:49:15Z
dc.date.created 2013-05
dc.date.issued 2013-09-16
dc.date.submitted May 2013
dc.identifier.urihttps://hdl.handle.net/1911/71924
dc.description.abstract To 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.mimetype application/pdf
dc.language.iso eng
dc.subjectFluid-structure interaction
Parachutes
Space-time techniques
Ringsail parachutes
Parachute clusters
Contact
Modified geometric porosity
dc.title Fluid--Structure Interaction Modeling of Modified-Porosity Parachutes and Parachute Clusters
dc.contributor.committeeMember Akin, John Edward.
dc.contributor.committeeMember Meade, Andrew J., Jr.
dc.contributor.committeeMember Takizawa, Kenji
dc.date.updated 2013-09-16T14:49:15Z
dc.identifier.slug 123456789/ETD-2013-05-563
dc.type.genre Thesis
dc.type.material Text
thesis.degree.department Mechanical Engineering and Materials Science
thesis.degree.discipline Engineering
thesis.degree.grantor Rice University
thesis.degree.level Masters
thesis.degree.name Master of Science
dc.identifier.citation Boben, Joseph. "Fluid--Structure Interaction Modeling of Modified-Porosity Parachutes and Parachute Clusters." (2013) Master’s Thesis, Rice University. https://hdl.handle.net/1911/71924.


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