Can Changing Hole Diameters Result in Equal Volume Flow Rate in a Pipe?

In summary, the conversation discusses the possibility of finding a delta value to achieve the same volume flow rate from each hole in a long pipe with equal distance openings. It is mentioned that this can be done depending on the type of fluid and its viscosity, and that computational fluid dynamics may be necessary in some cases.
  • #1
oydvoid
2
0
Here's my situation:

I have a long pipe with n amount of openings along the top, that have an equal distance apart. At one end of the pipe a constant pressure is applied by a pump, and the pipe has a constant diameter all the way to downstream. I’m trying to find a mass flow rate by changing the hole diameters by a delta, where we assume dn(hole diameter) = dinitial + (n-1)*delta. Is it possible to find a delta such that I can get the same volume flow rate out of each hole?

-JC
 
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  • #2
Yes, this can be done, depending on the details of what is happening. If the fluid is highly viscous, then viscous friction will determine the pressure variation along the header, and the appropriate hole sizes can be determined. However, if the fluid is inviscid (or nearly so), for equal sized holes, the flows should be uniform. Intermediate cases might require the use of computational fluid dynamics to get an answer.
 

FAQ: Can Changing Hole Diameters Result in Equal Volume Flow Rate in a Pipe?

What is fluid flow through a pipe?

Fluid flow through a pipe refers to the movement of a fluid, such as water or oil, through a pipe or channel. This flow can be caused by pressure differences, gravity, or other external forces.

What factors affect fluid flow through a pipe?

The factors that affect fluid flow through a pipe include the fluid's viscosity, density, velocity, and the pipe's diameter, length, and roughness. Other external factors, such as pressure and temperature, can also impact the flow.

How is fluid flow through a pipe measured?

Fluid flow through a pipe is typically measured using a flow meter, which can measure the volume or rate of flow. Other methods include using pressure drop calculations or flow visualization techniques.

What is laminar flow and turbulent flow?

Laminar flow refers to a smooth, orderly flow of fluid through a pipe, where the fluid particles move in parallel layers. Turbulent flow, on the other hand, is chaotic and irregular, with fluid particles mixing and swirling in all directions.

How can fluid flow through a pipe be controlled?

Fluid flow through a pipe can be controlled through various methods, such as adjusting the pipe's diameter, using valves or pumps to regulate the flow rate, or changing the properties of the fluid, such as its viscosity or density. Additionally, the design of the pipe and its surrounding environment can also impact the flow.

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