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2007-06-18 12:49:55 · 6 answers · asked by hotmail.stinks 1 in Science & Mathematics Physics

6 answers

This is what's known as "volumetric flow rate."

Let's do a quick unit analysis in SI units to see where this comes from. We know that area is in units of m^2, and velocity is in units of m/s. So, if we multiply these together, we have:

m^2 * m/s = m*m*m / s = m³/s.

So, [m³] denotes a volume, and the [/s] means "per second." Thus, this describes a rate per second to move a certain volume of a substance.

Volumetric flow rate is often measured in mL/s or ft³/s, depending on the discipline and amount of substance being analyzed.

2007-06-18 12:54:28 · answer #1 · answered by C-Wryte 3 · 5 3

Area times velocity is known as discharge, expressed in cfs, or cubic feet per second. The metric equivalent would be meters cubed per second. Stream discharge is useful for determining the capacity of a stream, in other words, how much sediment it can carry. Basically, it expresses how much volume of a material moves through an area in a given time.

2007-06-18 12:54:42 · answer #2 · answered by Jeff 3 · 2 2

It is the volume that passes a given point per second. Usually used in flow rates. Especially noncollectable fluids such as water.

The SI units are m^3/second

2007-06-18 12:55:43 · answer #3 · answered by eric l 6 · 1 0

Area times velocity is the eqation in finding FLOW. or Q=VA where
Q = Flow rate e.g. m3/s
V = Velocity e.g. m/s
A = Area e.g. m3/s
Its used when finding out how much fluid will pass a spicific are. mostly used in fluid mechanics and other applications.

2007-06-18 13:04:57 · answer #4 · answered by Israel C 1 · 2 0

Velocity = displacement / time.

Displacement is distance or length

Area x length / time = volume / time.

It gives the volume that is passing per unit time

2007-06-18 15:03:51 · answer #5 · answered by Pearlsawme 7 · 2 1

Well, the units (in the metric system) would be m³/sec

Change in volume per unit time, I suppose.

liter / sec? gallon/hour? acre-foot / day?

Any of those.

2007-06-18 18:19:55 · answer #6 · answered by Roland A 3 · 0 1

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