An unstructured grid generation and adaptive solution technique for high Reynolds number compressible flows.
dc.contributor.author | Ashford, Gregory Allan | |
dc.contributor.advisor | Powell, Kenneth G. | |
dc.date.accessioned | 2016-08-30T17:17:53Z | |
dc.date.available | 2016-08-30T17:17:53Z | |
dc.date.issued | 1996 | |
dc.identifier.uri | http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqm&rft_dat=xri:pqdiss:9711917 | |
dc.identifier.uri | https://hdl.handle.net/2027.42/129935 | |
dc.description.abstract | A method for simulating two-dimensional, high-Reynolds-number, compressible flows about complex geometries is described. The solution methodology consists of three main components: a general unstructured mesh-generation procedure, an implicit solution algorithm, and a solution-adaptive remeshing procedure. The unstructured mesh-generation procedure is designed to resolve efficiently the wide range of geometric and physical length scales present in these types of flows. In the thin boundary layers and wakes, a node-marching procedure is used to generate highly stretched, near right-triangular elements. In the predominantly inviscid regions, an advancing-front method is used to generate high-quality, near-equilateral elements. An implicit, higher-order, upwind method is also presented for solving the Reynolds-averaged Navier-Stokes equations with a one-equation turbulence model on these meshes. A solution-adaptive remeshing procedure that allows the mesh to adapt itself to flow features is also described. A procedure for tracking wakes and refinement criteria appropriate for shock wave detection are given. Results are shown for several complex external and internal flows which clearly demonstrate the utility of the method. | |
dc.format.extent | 230 p. | |
dc.language | English | |
dc.language.iso | EN | |
dc.subject | Adaptive | |
dc.subject | Compressible | |
dc.subject | Flows | |
dc.subject | Generation | |
dc.subject | Grid | |
dc.subject | High | |
dc.subject | Number | |
dc.subject | Reynolds | |
dc.subject | Solution | |
dc.subject | Technique | |
dc.subject | Unstructured | |
dc.title | An unstructured grid generation and adaptive solution technique for high Reynolds number compressible flows. | |
dc.type | Thesis | |
dc.description.thesisdegreename | PhD | en_US |
dc.description.thesisdegreediscipline | Aerospace engineering | |
dc.description.thesisdegreediscipline | Applied Sciences | |
dc.description.thesisdegreegrantor | University of Michigan, Horace H. Rackham School of Graduate Studies | |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/129935/2/9711917.pdf | |
dc.owningcollname | Dissertations and Theses (Ph.D. and Master's) |
Files in this item
Remediation of Harmful Language
The University of Michigan Library aims to describe library materials in a way that respects the people and communities who create, use, and are represented in our collections. Report harmful or offensive language in catalog records, finding aids, or elsewhere in our collections anonymously through our metadata feedback form. More information at Remediation of Harmful Language.
Accessibility
If you are unable to use this file in its current format, please select the Contact Us link and we can modify it to make it more accessible to you.