It was found that entropy generation increases with Hartman number, Brinkman number, and the
dimensionless group. Irreversibility due to the magnetic field, the conduction heat in the transverse direction, and the fluid friction increases by the increase of Hartman number, Brinkman number, and the
dimensionless group, respectively.
17 and 18 show the influences of
dimensionless group parameter Br[[OMEGA].sup.-1] and Reynolds number on entropy generation number respectively.
The derivation of a
dimensionless group called blade flexibility* is outlined and its effect on coating thickness and blade behavior is studied.
Each
dimensionless group is expressed as a natural logarithm of the
dimensionless group in order to keep the values of the
dimensionless groups from getting excessively large, and to facilitate the visualization of the surface fitting procedure described in the next subsection.
3 we have plotted the variation in
dimensionless group velocity U/[[beta].sub.2] with respect to scaled wave number k/s.
This procedure provides one
dimensionless group for each concept.
A
dimensionless group, as follows, is used to include a dependency upon surface tension:
He proposed that a
dimensionless group be developed to characterize the freezing range of the alloy, as compared to thermal conditions in the mold, in order to establish the validity of the models.
They concluded that the approach to temperature equilibrium would be expected to correlate with the
dimensionless group. (1) [Alpha] [Theta]/[r.sup.2] where [Alpha] is thermal diffusivity, [Theta] is the contact time and r is the distance over which heat is transferred.
One such chart exists for each value of the
dimensionless group M = (k/[lambda]).sup.1/2.Pr.sup.-1/6., where k and [lambda] are the thermal conductivities of the fin and fluid, respectively.
A new
dimensionless group, Q, the sheet bowability, was uncovered which governs how much a heated sheet will bow.