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Unformatted text preview: x cr where the Reynolds number becomes equal to the critical Reynolds number, m 76 0.9 m/s 8 ) 10 5 )( /s m 10 562 . 1 ( Re Re 5 2 5 = = = = V V cr cr cr cr x x The thickness of the boundary layer at that location is obtained by substituting this value of x into the laminar boundary layer thickness relation, cm 0.69 m 006903 . ) 10 (5 m) 976 . ( 5 Re 5 Re 5 2 / 1 5 2 / 1 2 / 1 = = = = = cr cr cr x x x x V x cr Discussion When the flow becomes turbulent, the boundary layer thickness starts to increase, and the value of its thickness can be determined from the boundary layer thickness relation for turbulent flow. 724...
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This note was uploaded on 01/22/2012 for the course PHY 4803 taught by Professor Dr.danielarenas during the Fall '10 term at UNF.
 Fall '10
 Dr.DanielArenas
 Thermodynamics, Convection, Force, Mass

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