Fluid mass can go past point or through area over time {fluid flow}|.
pipe
Fluid velocity at different pipe radii differs. Highest velocity is in center. Velocity is zero at pipe walls.
conservation
Same fluid amount at one point must be at another point. Otherwise, fluid builds. Same fluid volume passes any point, during time. At pipe points, inflow equals outflow.
pressure
Around pipe loops, pressures add to zero.
rate
Flow rate increases with increase in molecule velocity, temperature, pressure, and/or mean free path. Flow rate decreases with increase in cross-sectional area, molecule mass, and/or molecule collision frequency.
Physical Sciences>Physics>Dynamics>Fluid>Flow
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Date Modified: 2022.0224