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Subject:
Momentum, heat, and mass transfer (Karman integral analysis) << 2 >>
Category: Science > Physics Asked by: abadi966-ga List Price: $20.00 |
Posted:
25 Apr 2005 13:59 PDT
Expires: 27 Apr 2005 07:24 PDT Question ID: 514069 |
For a uniform flow U of a fluid at temperature T? across a flat plate at temperature Tw, if we assume that the temperature profile inside the boundary layer is given by (T - Tw)/(T? - Tw) = 1 - (1 - (y/?t)^2) and that the ratio ?t(x)=?(x) is a constant, use the von Karman integral analysis to determine: (a) an equation for K = ?t(x)=?(x) in terms of the Prandtl number Pr = v/? (simplify this relation in the limit that Pr >> 1) (b) the local heat flux at the wall qw(x) (c) the relationship between the Nusselt number Nu and the Reynolds number Re. Assume the velocity profile is given by: vx/U = sin ((?*y)/(2?)) |
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