| Fluid Statics | Control Volume | Differential Relations | Internal Flow | External flow |
|---|---|---|---|---|
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What is the equation for hydrostatic pressure?
P=ρgh
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What is the incompressible fluid assumption?
Assume density does not vary.
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What are streamlines?
A path that’s always tangent to the fluid velocity.
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What is Hagen-Poiseuille flow?
This bullet-shaped velocity profile is common in cylindrical pipes.
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What is flat plate flow?
If the Reyolds number is greater than 5*10^5 for this kind of flow, the flow is turbulent.
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What is a Newtonian fluid?
A fluid where shear force varies linearly with velocity profile.
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What is the 1-D inlet/outlet assumption?
Fluid flow at control control surface is parallel to the normal vector.
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What are incompressible and Newtonian fluid assumptions?
These assumptions are needed for the Navier-Stokes equations.
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What is the Moody chart?
This beautiful chart allows you to find friction factors for turbulent flows.
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What is flow over a flat plate?
If the Reyolds number is greater than 5*10^5 for this kind of flow, the flow is turbulent.
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What is gage pressure?
A pressure defined relative to the atmosphere.
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What is pressure force?
This force always “pushes” on the control surface.
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What is convective/spatial acceleration?
This component of acceleration does not depend on time.
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What is iteration?
This techniques lets you solve head loss problems when friction factor and Reynolds number are unknown.
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What is pressure drag?
If a plate’s front is facing the flow, this type of drag fore dominates.
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What is a manometer?
This device uses fluid levels to measure pressure differences.
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What is Couette flow?o
This type of flow involves a fluid between two moving large parallel flat plates.
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What is the Reynolds number?
This number represents the ratio of inertial forces and viscous forces.
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What is the coefficient of drag?
This value used in calculating drag is dependent on the geometry of the object.
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