NDLI: Efficient numerical techniques for complex fluid flows (Document No: 19890003523)

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Efficient numerical techniques for complex fluid flows (Document No: 19890003523)

Content Provider	NASA Technical Reports Server (NTRS)
Author	Patankar, Suhas V.
Copyright Year	1986
Description	The central feature in any flow prediction method is the treatment of the coupling between the momentum and continuity equations. In natural-convection flows, the energy equation also becomes strongly coupled with the momentum equations. Because of the nonlinear nature of the coupling, these equations are solved iteratively. Iterative methods are often prone to slow convergence, divergence, and extreme sensitivity to underrelaxation factors. The aim of the present research is to develop more efficient and reliable solution schemes for the coupled flow equations. Such schemes will significantly reduce the expense of computing complex flows encountered in combustion chambers, gas turbines, heat exchangers, and other practical equipment. In the work completed so far, a technique employing norm reduction in conjunction with the successive-substitution and Newton-Raphson techniques was developed. Also, a block-correction procedure for the flow equations is currently being formulated and tested.
File Size	155369
Page Count	4
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19890003523
Archival Resource Key	ark:/13960/t2896347m
Language	English
Publisher Date	1986-10-01
Access Restriction	Open
Subject Keyword	Fluid Mechanics And Heat Transfer Flow Equations Momentum Transfer Continuity Equation Computer Techniques Gas Turbine Engines Coupling Newton-raphson Method Heat Exchangers Combustion Chambers Recirculative Fluid Flow Prediction Analysis Techniques 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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