(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Define:Static pressure

Dynamic Pressure

Continuum hypothesis

Kinetic Viscosity

Kinematic Viscosity

2. The attempt at a solution

The real question is : are these answers sufficient?

- The pressure exerted by a fluid on an object placed within the fluid is called the static pressure.

Static Pressure

Dynamic Pressure- The pressure exerted by a fluid on an object that is moving through the fluid. This is given by:

[tex] q = \frac{1}{2} \rho v^2 [/tex]

I get the feeling that this is wrong...

Continuum hypothesis- the region to be described can be subdivided into a set of (infinitesimal) volume elements, each of which simultaneously:

1) is small enough to be considered uniform (i.e. any spatial variations in properties -- such as r, v,T, p -- inside the volume element are negligible); and

2) is large enough to contain a statistically large number of molecules.

Kinetic Viscosity- I think he means dynamic viscosity

The definition for dynamic viscosity is the force per unit area a liquid exerts on two parallel plates that enclose the liquid. I would be more concise with this explanation when i'm writing it out that is, i will give an example.

Kinematic Viscosity- The ratio of the dynamic viscosity and the density of the fluid.

I am not sure about the last two definitions, i think they are too short. However i have looked through a few textbooks - Lifsitz/Landau, Houghton/Carpenter (my course text), Batchelor, but none of them have yielded a satisfactory answer for the last two definitions.

I would really appreciate your help!

Thank you

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# Homework Help: Conceptual questions in Fluid Mechanics

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