+ Visit NASA.gov + Contact NASA   + Home Collection > NASA  Author > Rubesin, M. W.  NASA Center > Ames Research Center  Publication Year > 1971-1980 > 1979  Subject > D-F > Fluid Mechanics And Heat Transfer  Availability Options > Order From CASI > CD-ROM, DVD, Print  Item/Media Type > NASA Report > Technical Memorandum (TM)  Item/Media Type > Technical Report  Note: Start a new navigation search by selecting a link above     Previous Record | Next Record + Back to Results   + Printer Friendly Title: Developments in the computation of turbulent boundary layers Author(s): Rubesin, M. W. Abstract: Computational techniques applicable to turbulent boundary layers are classified into solutions of Reynolds-averaged equations, in which all the effects of the turbulence are modelled, and solutions of three-dimensional, time dependent Navier-Stokes equations, in which the large eddies are calculated and only the turbulence at scales smaller than the computational mesh spacings has to be modelled. Current computation costs place engineering computations in the first of these categories; large eddy simulations are appropriate currently for special studies of the dynamical processes of turbulence in idealized flow fields. It is shown that the two methods are interrelated and that each can gain from advances in the other. The degree of success of a pair of increasingly complex Reynolds stress models to broaden their range of applicability is examined through comparisons with experimental data for a variety of flow conditions. An example of a large-eddy simulation is presented, compared with experimental results, and used to evaluate the models for pressure rate-of-strain correlations and dissipation in the Reynolds-averaged equations. NASA Center: Ames Research Center Publication Date: Sep 1, 1979 Document Source: CASI No Digital Version Available: Go to Tips On Ordering Document ID: 19790025262 Accession ID: 79N33433 Publication Information: Number of Pages = 26 Report Number: A-7953; NASA-TM-78620 Contract-Grant-Task Number: RTOP 506-26-11-09-21 Price Code: A03 Meeting Information: AGARD Symp. on Turbulent Boundary Layer - Experiment, Theory and Modelling, 24-27 Sep. 1979, The Hague, Netherlands Keywords: BOUNDARY LAYERS; NUMERICAL FLOW VISUALIZATION; REYNOLDS EQUATION; TURBULENT FLOW; FLOW DISTRIBUTION; PRESSURE DISTRIBUTION; VORTICES; Notes: Presented at AGARD Symp. on Turbulent Boundary Layer - Experiment, Theory and Modelling, The Hague, 24-27 Sep. 1979 Accessibility: Unclassified; No Copyright; Unlimited; Publicly available; Updated/Added to NTRS: 2004-11-03 + Back to Top + Sponsored by the NASA Scientific and Technical    Information Program + 2004 Vision for Space Exploration + Freedom of Information Act + NASA Web Privacy Policy and Important Notices + NASA Disclaimers, Copyright Notice,    and Terms and Conditions of Use NASA Official: Calvin Mackey Page Curator: NASA Center for AeroSpace Information (help@sti.nasa.gov) Last Updated: July 5, 2007