Evaluation of the effects of roll angle on the natural convection heat transfer from an array of cylindrical spines
McClanahan, Joseph E.
Kraus, Allan D.
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Experimental data has been obtained that predicts the effect of roll angle upon the natural convection heat transfer from an array of cylindrical spines or pin fins. A correlation is presented that permits evaluation of the Nusselt Modulus as a function of the Rayleigh Modulus and the roll angle and it shows that maximum heat transfer is obtained at roll angles between 20 and 30 degrees.