skin-friction coefficient

skin-friction coefficient

[′skin ¦frik·shən ‚kō·i′fish·ənt]
(meteorology)
A dimensionless drag coefficient expressing the proportionality between the frictional force per unit area, or the shearing stress exerted by the wind at the earth's surface, and the square of the surface wind speed.
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References in periodicals archive ?
The parameters of engineering interest for the present problem are the local skin-friction coefficient and the local Nusselt number which indicate physically wall shear stress and rate of heat transfer respectively.
Hence the skin-friction coefficient can be written as:
It may be noted that with an increase in K, H and G the Skin-friction increases, while we observe that the Skin-friction coefficient and the Nusselt number decrease as the velocity exponent parameter m decreases.
The quantities of physical interest, namely, the local skin-friction coefficient [Cf.
The validity of the present solutions is examined by comparing the results for the local skin-friction coefficient [[absolute value of f"(0)].
Table 3 presents representative numerical results for the local skin-friction coefficient [[absolute value (0)].
Table 1: Values of skin-friction coefficient at the plate when [epsilon] = 0.
Table 1 displays the values of the skin-friction coefficient and Nusselt number at the surface for different values of [[theta].
The results are qualitatively similar and show that increasing the thermal conductivity of the fluid leads to an increase in the skin-friction coefficient but a decrease in the Nusselt number.
Simulations show that the increasing the magnetic field intensity leads to a decrease in the skin-friction coefficient as well as in the heat transfer coefficient.