Title:
A New Two-Scale Decomposition Approach for Large-Eddy Simulation of Turbulent Flows

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dc.contributor.advisor Menon, Suresh
dc.contributor.author Kemenov, Konstantin A. en_US
dc.contributor.committeeMember Bunimovich, Leonid
dc.contributor.committeeMember Cvitanovic', Predrag
dc.contributor.committeeMember Sankar, Lakshmi N.
dc.contributor.committeeMember Yeung, P. K.
dc.contributor.department Aerospace Engineering en_US
dc.date.accessioned 2006-09-01T19:29:37Z
dc.date.available 2006-09-01T19:29:37Z
dc.date.issued 2006-06-22 en_US
dc.description.abstract A novel computational approach, Two Level Simulation (TLS), was developed based on the explicit reconstruction of the small-scale velocity by solving the small-scale governing equations on the domain with reduced dimension representing a collection of one-dimensional lines embedded in the three-dimensional flow domain. A coupled system of equations, that is not based on an eddy-viscosity hypothesis, was derived based on the decomposition of flow variables into the large-scale and the small-scale components without introducing the concept of filtering. Simplified treatment of the small-scale equations was proposed based on modeling of the small-scale advective derivatives and the small-scale dissipative terms in the directions orthogonal to the lines. TLS approach was tested to simulate benchmark cases of turbulent flows, including forced isotropic turbulence, mixing layers and well-developed channel flow, and demonstrated good capabilities to capture turbulent flow features using relatively coarse grids. en_US
dc.description.degree Ph.D. en_US
dc.format.extent 5973185 bytes
dc.format.mimetype application/pdf
dc.identifier.uri http://hdl.handle.net/1853/11520
dc.language.iso en_US
dc.publisher Georgia Institute of Technology en_US
dc.subject Turbulent flows en_US
dc.subject Large eddy simulations
dc.subject Subgrid-scale modeling
dc.title A New Two-Scale Decomposition Approach for Large-Eddy Simulation of Turbulent Flows en_US
dc.type Text
dc.type.genre Dissertation
dspace.entity.type Publication
local.contributor.advisor Menon, Suresh
local.contributor.corporatename College of Engineering
local.contributor.corporatename Daniel Guggenheim School of Aerospace Engineering
local.relation.ispartofseries Doctor of Philosophy with a Major in Aerospace Engineering
relation.isAdvisorOfPublication 67d13e49-1e1d-4ce9-ac87-8f1a49266904
relation.isOrgUnitOfPublication 7c022d60-21d5-497c-b552-95e489a06569
relation.isOrgUnitOfPublication a348b767-ea7e-4789-af1f-1f1d5925fb65
relation.isSeriesOfPublication f6a932db-1cde-43b5-bcab-bf573da55ed6
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