entropy
Table 2 shows the new ablators like polyimide and B4C give almost the same yield, the same maximum velocity, and the same isentropic coefficient, with Planckian spectrum.
This approximates the isentropic compression stage of the Carnot cycle.

Examples of isentropic

isentropic
This increase is due to the isentropic conversion of internal energy to kinetic energy.
The flow behind the shock wave is governed by the unsteady non-isentropic flow equations.
In isentropic flow, the circulation in a given contour is conserved.
I n the absence of relaxation the equations of 5 2 simplify to the standard equations of one-dimensional unsteady, isentropic flow.
This result identifies the isentropic solution as a special case of the irrotational vortex flow of a viscous, heat-conducting perfect gas.
In fact the assumption that the heating is uniform was verified and the expansion after heating was found to be isentropic.
Equations (5.1)-(5.6) show that simple sound waves are compressible, irrotational isentropic flows.
The present treatment removes the restriction of isentropic flows, extending the applicability of piston theory to flows with strong shocks.
Since the irrotational isentropic pressure is still lower, the stagnation pressure of the rotational vortex must increase sharply with decreasing radius in the supersonic region.
It would be necessary to apply the method in geostrophic and isentropic coordinates, which is only practicable even in principle for a semi-geostrophic model.
Theory of homogeneous isentropic compression and its application to laser fusion.
Then the flow is irrotational even in a viscous fluid, but is not, in general, isentropic.
We assume the flow to be isentropic on the two sides of the contact surface (figure 20).
During the first compression phase, high densities are reached in the plasma by a nearly isentropic compression, without a hot spot generation in the plasma.
Simple sound waves are isentropic, irrotational fluid flows.
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