NDLI: Analysis of transition-sensitized turbulent transport equations

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Analysis of transition-sensitized turbulent transport equations

Content Provider	NASA Technical Reports Server (NTRS)
Author	Thacker, William D. Rumsey, Christopher L. Gatski, Thomas B. Grosch, Chester E,
Copyright Year	2005
Description	The dynamics of an ensemble of linear disturbances in boundary-layer flows at various Reynolds numbers is studied through an analysis of the transport equations for the mean disturbance kinetic energy and energy dissipation rate. Effects of adverse and favorable pressure-gradients on the disturbance dynamics are also included in the analysis Unlike the fully turbulent regime where nonlinear phase scrambling of the fluctuations affects the flow field even in proximity to the wall, the early stage transition regime fluctuations studied here are influenced cross the boundary layer by the solid boundary. The dominating dynamics in the disturbance kinetic energy and dissipation rate equations are described. These results are then used to formulate transition-sensitized turbulent transport equations, which are solved in a two-step process and applied to zero-pressure-gradient flow over a flat plate. Computed results are in good agreement with experimental data.
File Size	897218
Page Count	16
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20050050898
Archival Resource Key	ark:/13960/t7hq8x057
Language	English
Publisher Date	2005-01-01
Access Restriction	Open
Subject Keyword	Fluid Mechanics And Thermodynamics Perturbation Theory Flat Plates Reynolds Number Transition Flow Pressure Gradients Energy Budgets Energy Dissipation Linearity Flow Distribution Nonlinearity K-epsilon Turbulence Model Mathematical Models Transport Theory Kinetic Energy Boundary Layers Boundary Layer Flow Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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