Fluid Flow and Energy Flashcards
What is viscosity?
A fluids resistance to flow.
What causes determines viscosity?
The shearing action of adjacent molecules of a fluid.
What can change the viscosity of a fluid?
- Fluid type
- Temperature
- Velocity
What are the two types of viscosity in a fluid?
Kinematic and Dynamic Viscosity
What is Dynamic Viscosity and its equation?
The coefficient given to a fluid to show it’s resistance to shear.
What is Kinematic viscosity and what is it’s equation?
The ratio of dynamic viscosity to mass density.
What are the SI units for dynamic and kinematic viscosity?
What are the conversions of dynamic and kinematic viscosity to Poise and Stokes, respectively?
What is the continuity equation?
What is energy?
- Energy is the capability of a body or a system to perform work.
- It is defined by the conservation of energy law.
What are the compenents of total energy in a fluid?
- Potential Energy
- Kinetic Energy
- Pressure Energy
How is Bernouilli’s energy equation derived?
If you put your thumb over a hose, what happens to the pressure and velocity of fluid?
Pressure dereases and velocity increases.
Q = av
Higher the velocity, bigger the deviser when calulating pressure. (bernoulli’s)
