Flashcards
Fluid Flow
Cards in this deck (12)
- 1Define the term path line/ trajectory.The set of positions taken by a fixed particle as time increases
- 2Define the term Streak lineThe set of particles passing through a fixed point as time increases
- 3Define the term streamlineA line in space that is everywhere tangent to the velocity field at a given instant
- 4Define the term Time lineThe set of particles being aligned along a given direction at a given instant
(usually taken to be perpendicular to fluid flow) - 5Define the term steady flowIt's pattern does not change in time
(i.e. the path line, streak lines and stream line are coincident) - 6What is a region of recirculation?When the flow does not follow the surface if the object due to sudden changes in direction
- 7What does recirculation cause?Drag forces
Friction (changing KE to U) - 8What is the mass continuity equation?Mass flowing in = Mass flowing out
- 9What are the conditions of the continuity equation?Must be a steady flow
- 10What are the requirements of the Bernoulli equation?Frictionless flow (no viscosity)
Incompressible flow (constant density)
Steady Flow - 11State the Bernoulli Equation.
- 12—
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- Flashcards on Fluid Flow, created by Lana Duncan on 09/04/2018.
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- Lana Duncan
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