Examples of isentropic in the following topics:
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- In such an isentropic flow, the entropy will remain constant and we can derive some additional useful forms.
- If we assume that ${\bf F}/m = -\nabla \phi$ which is often the case, we find that if the flow in an isentropic, ideal fluid is initially irrotational it will remain irrotational.
- if $\displaystyle {\bf F}/m = -\nabla \phi$, so the circulation around a contour moving with the fluid is constant if the flow is isentropic.
- The circulation around a close contour (bold lines) that travels with the fluid along the streamlines (light lines) is conserved if the fluid is isentropic.
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- An interesting and important case is when the fluid is isentropic as well, then we have
- or that isentropic stars must have constant angular velocity on cylindrical surfaces.
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- According to the third law, the reason that T=0 cannot be reached is explained as follows: Suppose the temperature of a substance can be reduced in an isentropic process by changing the parameter X from X2 to X1.
- Horizontal lines represent isentropic processes, while vertical lines represent isothermal processes.
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- Hint: the equation of state of an isentropic fluid is P=Kργ where the value of K increases with increasing entropy.
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- It is sometimes also known as the isentropic expansion factor:
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- Hint: the equation of state of an isentropic fluid is P=Kργ where the value of K increases with increasing entropy.