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Q: Effect of height on volumetric flow rate?
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Why as the water falls its speed increases and the area of cross section decreases?

It is explained by mass conservation, and water being an incompressible fluid. Imagine water going through a pipe with varying inside diameters Di's. Water will flow the fastest in the pipe section with the smallest diameter, and will flow the slowest in the widest section of the pipe. The product of the volumetric average velocity of the water flow v, times the cross section area A, is equal to the volumetric flow rate (vol/time) G. G = v∙A If you have a constant volumetric flow rate, if the area reduces to half, the velocity doubles. By the way, if you multiply the volumetric flow rate G by the liquid density ρ, you get the mass flow rate Q, (mass/time). Q = G∙ρ = ρ∙v∙A


What viscosity level was the fluid flow rate the highest?

The relationship between radius and fluid flow rate is inversely proportional. As radius goes down, fluid flow rate goes up. The highest fluid flow rate will be at the lowest radius.


Will inland rivers such as those in northern Mississippi flood if sea levels rise?

No, rivers will flood at low-lying area near their mouths, where the sea levels will rise. The height of river water depends on the rainfall received into the watershed. If sea level rises, that will have no effect on flow rate upstream.


How does heat affect lava flow?

Heat effects the flow rate of lava because the hotter the lava is, the less viscous it is which allows it to flow faster than if it had a slow flow rate. If it has a low temperature, then the flow rate will be much slower because it has a high viscosity.


What is the effect of flow rate on retention time in HPLC?

When you increase the flowrate of the carrier gas, the retention times decrease. Just like when you increase the temperature of the column. Both of these conditions are sometimes necessary for substances that would otherwise have very long retention times.

Related questions

What are flow meters used for?

Flow meters are used to measure the linear, nonlinear, mass, or volumetric flow rate of a liquid or gas.


Why as the water falls its speed increases and the area of cross section decreases?

It is explained by mass conservation, and water being an incompressible fluid. Imagine water going through a pipe with varying inside diameters Di's. Water will flow the fastest in the pipe section with the smallest diameter, and will flow the slowest in the widest section of the pipe. The product of the volumetric average velocity of the water flow v, times the cross section area A, is equal to the volumetric flow rate (vol/time) G. G = v∙A If you have a constant volumetric flow rate, if the area reduces to half, the velocity doubles. By the way, if you multiply the volumetric flow rate G by the liquid density ρ, you get the mass flow rate Q, (mass/time). Q = G∙ρ = ρ∙v∙A


What should be considered ID or OD when calculating pipe dia using volumetric flow rate?

Inside diameter


How do you calculate mold fill time?

MFT = V(mold/ cavity volume) / Q (Volumetric Flow Rate)


What does GPM mean for a water pump?

Gallons per minute, a unit of volumetric flow rate


What is the effect of height on settling rate?

an increase in height increases the length


Hoe do convert CFM to NLPM?

nLPM stands for Normal Liters per Minute. This is actually a mass flow rate because it describes the amount of gas that would have the indicated LPM volumetric flow rate AT 1 atmosphere pressure and 0 degrees C. The actual volumetric flow rate (LPM) at any other temperature or pressure condition must be adjusted according to the ratios of absolute temperatures and (inversely) absolute pressures.


How do you convert Mass Flow Rate to Velocity?

when you have the vescosity to react with the liquid or the substance in the being of the making Volumetric flow is L^3/T, a cubic length divided by time (cubic meters per second, for example.) Velocity is L/T (meters per second or miles per hour). To get velocity from volumetric flow, you divide the volumetric flow by the cross-sectional area (L^2) of whatever the liquid is flowing through. If you have .5 ft^3/s of water flowing through a pipe with a 1.5 inch diameter, convert 1.5 inches to feet: 1.5/12 = .125 ft, then find the cross-sectional area: (pi/4)(.125^2) = .01227 ft^2. Then .5 ft^3/s by the area and get 40.7 ft/s, which is about 27.75 mph.


What does the acronym VFR stand for?

Common meanings of VFR are Virtual Fragment Reassembly, Variable Frame Rate, Vee Four Racing, Volume Fraction Ratio, Visual Flight Rules, and Volumetric Flow Rate.


What is the effect of the temperature on the gas flow rate?

higher temperature equals more flow, which reduces mpg.


How high a waterfall can be made from a waterfall kit?

Manmade waterfall height and flow are inversely related, based on the pump's characteristics, meaning that the height increases, flow decreases. Pumps have a maximum flow rate, and head (height the pump can raise the water at a stated flow). The height and flow table are listed for each pump, so read them carefully for your intended application.


What is the flow-line of a pipe?

The flow-line of a pipe is the bottom inside portion of the pipe. Flow-lines are generally reffered to when establishing the elevation of the pipe work.