(C3) Fluids in Motion Flashcards
What is viscosity?
How much a fluid resists flow
What states of matters are fluids?
Liquid or Gas
What is a Newtonian fluid?
A fluid where the viscosity does not change with rate of flow.
What happens if a fluid enters are narrower space(pipe)?
The fluid flows faster
In a pipe at what point does the fluid flow the slowest?
At the sides of the pipe due to friction
In a pipe at what point does the fluid flow the fastest?
At the centre of the pipe due to low friction
What is Bernoulli’s Principle?
When the rate at which a fluid flows increases, the pressure decreases
A flow of a Newtonian fluid can be …?
Streamline or Turbulent
What is a turbulent flow?
Where the flow lines get mixed up and are unstable
When does turbulent flow occur?
At high speeds
What is a streamline(laminar) flow?
Where the flow lines do not cross and are stable
When does streamline flow occur?
At low speeds and pressure
What is a Non-Newtonian fluid?
A fluid where the viscosity changes with rate of flow.
