You said you don't know the flow rate and then that you do. Which is it? More to the point: do you have a complete picture of the system configuration? If not, exactly what do you know and not know?PaulB said:I have pump of unknown flowrate pumping water through a tube of length L and diameter D. I know that the flowrate of water exiting the tube is X mL/min.
Not with the information provided, no. It could even be zero.PaulB said:I would like to know the internal pressure of the tubing, how can I calculate it? This all occurs at sea level elevation.
I know the flowrate of the water exiting the tubing. I don't have any knowledge of the florwrate of the water entering the tube. All I know is tube length, diameter, water density and atmospheric conditions. Is it possible to determine internal pressure from this?russ_watters said:You said you don't know the flow rate and then that you do. Which is it? More to the point: do you have a complete picture of the system configuration? If not, exactly what do you know and not know?
The flow rates into and out of the tube must be the same due to conservation of mass.PaulB said:I know the flowrate of the water exiting the tubing. I don't have any knowledge of the florwrate of the water entering the tube.
You said this all occurs at sea level - so it's completely horizontal? Do you know the hose material?PaulB said:All I know is tube length, diameter, water density and atmospheric conditions. Is it possible to determine internal pressure from this?
russ_watters said:The flow rates into and out of the tube must be the same due to conservation of mass.
You said this all occurs at sea level - so it's completely horizontal? Do you know the hose material?
I agree with @Dullard that with a few assumptions you can calculate an answer but if it is accurate enough for your needs is another matter.
Dullard said:what are your Length and Flowrate?
Dullard said:what are your Length and Flowrate?
Length is 0.3 m, flowrate is 8 mL/minute. How can I calculate the answer?Dullard said:what are your Length and Flowrate?
The internal pressure of a tube can be calculated using the formula P = (4 * Q * µ) / (π * r^3), where P is the internal pressure, Q is the flow rate, µ is the dynamic viscosity, and r is the radius of the tube.
The internal pressure of a tube is directly proportional to the flow rate. This means that as the flow rate increases, the internal pressure also increases.
The internal pressure of a tube can be affected by various factors such as the flow rate, viscosity of the fluid, and the radius of the tube. Additionally, changes in temperature and the presence of any obstructions in the tube can also impact the internal pressure.
The internal pressure of a tube can be measured using a pressure gauge or a manometer. These instruments can provide accurate readings of the pressure inside the tube.
Yes, the internal pressure of a tube can be controlled by adjusting the flow rate, changing the viscosity of the fluid, or altering the radius of the tube. Additionally, using pressure regulators or valves can also help in controlling the internal pressure.