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Details of Exact Low Prandtl Number Boundary-Layer Solutions for Forced and For Free ConvectionA detailed report is given of exact (numerical) solutions of the laminar-boundary-layer equations for the Prandtl number range appropriate to liquid metals (0.003 to 0.03). Consideration is given to the following situations: (1) forced convection over a flat plate for the conditions of uniform wall temperature and uniform wall heat flux, and (2) free convection over an isothermal vertical plate. Tabulations of the new solutions are given in detail. Results are presented for the heat-transfer and shear-stress characteristics; temperature and velocity distributions are also shown. The heat-transfer results are correlated in terms of dimensionless parameters that vary only slightly over the entire liquid-metal range. Previous analytical and experimental work on low Prandtl number boundary layers is surveyed and compared with the new exact solutions.
Document ID
19980232229
Acquisition Source
Headquarters
Document Type
Other - NASA Memorandum (MEMO)
Authors
Sparrow, E. M. (NASA Lewis Research Center Cleveland, OH United States)
Gregg, J. L. (NASA Lewis Research Center Cleveland, OH United States)
Date Acquired
September 6, 2013
Publication Date
February 1, 1959
Subject Category
Fluid Mechanics And Heat Transfer
Report/Patent Number
NASA-MEMO-2-27-59E
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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