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A polytropic process is a thermodynamic process that obeys the relation: = where p is the pressure , V is volume , n is the polytropic index , and C is a constant. The polytropic process equation describes expansion and compression processes which include heat transfer.
A polytrope with index n = 3 is a good model for the cores of white dwarfs of higher masses, according to the equation of state of relativistic degenerate matter. [7] A polytrope with index n = 3 is usually also used to model main-sequence stars like the Sun, at least in the radiation zone, corresponding to the Eddington standard model of ...
Pages for logged out editors learn more. Contributions; Talk; Polytropic index
The particular choice of a polytropic gas as given above makes the mathematical statement of the problem particularly succinct and leads to the Lane–Emden equation. The equation is a useful approximation for self-gravitating spheres of plasma such as stars, but typically it is a rather limiting assumption.
While many dog owners know that giving Fido chocolate can causing poisoning, there other lesser known foods that need to be kept away from your dog. 9 types of food you should never feed your dog ...
The FDA has released a list of the people foods that, when fed to dogs, present a high risk of problems. SEE ALSO: Adorable French bulldog cools down from the summer heat
amitriptyline – tricyclic antidepressant used to treat separation anxiety, excessive grooming dogs and cats; amlodipine – calcium channel blocker used to decrease blood pressure; amoxicillin – antibacterial; apomorphine – emetic (used to induce vomiting) artificial tears – lubricant eye drops used as a tear supplement
In a nozzle or other constriction, the discharge coefficient (also known as coefficient of discharge or efflux coefficient) is the ratio of the actual discharge to the ideal discharge, [1] i.e., the ratio of the mass flow rate at the discharge end of the nozzle to that of an ideal nozzle which expands an identical working fluid from the same initial conditions to the same exit pressures.