A method for determination of turbulent skin friction when the coefficients of log-law may differ from universal constants
IR@NAL: CSIR-National Aerospace Laboratories, Bangalore
View Archive Info| Field | Value | |
| Title |
A method for determination of turbulent skin friction when the coefficients of log-law may differ from universal constants
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| Creator |
Krishnan, V
Yajnik, KS |
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| Subject |
Fluid Mechanics and Thermodynamics
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| Description |
A simple method is proposed for the determination of skin friction from the measured two-dimensional turbulent boundary layer mean.velocity profile,(a) the log-law to the overlap region or (b) the equation of Coles to a large portion of tihe velocity profile by an iterative proceuure, The distinguishing fedcure of Lhe rnethc-1 is that the coefficients of tile 1ogarithmic part of the mean velocity may not have to be luiown apriori.Consequently, the can take values other than those vcilucs of universal log-law. Comparison with experimental data of flow cownstream of flat plate turbulence manipulators (ribbons) and for interaction of airfoil wake with boundary layer, suggests that the method sives results cmparable13; with taose obtained by balance and fence.13;
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| Publisher |
National Aeronautical Laboratory
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| Date |
1988-03
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| Type |
Proj.Doc/Technical Report
NonPeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://nal-ir.nal.res.in/2825/1/tr_tm_fm_8802.pdf
Krishnan, V and Yajnik, KS (1988) A method for determination of turbulent skin friction when the coefficients of log-law may differ from universal constants. Technical Report. National Aeronautical Laboratory, Bangalore,India. |
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| Relation |
http://nal-ir.nal.res.in/2825/
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