Is the flow velocity of water under different pressures the same when the pipe diameter and flow rate are identical?
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Do 2 kilograms and 4 kilograms of water have the same flow velocity under the same pipe diameter and flow rate?
1# tuotuo518: The same principle applies here – the flow rate is determined by the pipe diameter and the flow volume. Conversely, with the same pipe diameter, the flow rates of 2 kilograms and 4 kilograms of water cannot be identical.
This question seems a bit difficult to answer. The answer from the second floor seems reasonable to me
What it means on the second floor is: Conversely, with 2 kilograms and 4 kilograms of water, under the same pipe diameter, the flow rates are different; therefore, the corresponding flow velocities are also different
I agree with the view on the second floor; this conclusion can be drawn from the formulas for flow rate and velocity.
In fact, flow rate has little to do with pressure; when the cross-sectional area remains constant, the flow rate depends on the velocity of flow, and the velocity of flow is largely determined by the pressure difference.
Agree with the person above; it seemed similar when calculating gas flow rates before as well.
1. The water temperatures should be similar, and it should be in a liquid state. Avoid minor differences in density. 2. The elastic deformation of the pipeline is not considered. 3. The flow velocity at each point is not considered; only the average flow velocity is taken into account. It’s the same as long as it meets the above conditions. At the same time, different pressures can still result in the same flow rate
The higher the pressure, the greater the stress, and the greater the relative flow rate~
This post was last edited by junhuo1984 on 2010-2-23 at 10:25. If the flow rate remains constant and the pipe diameter does not change, then the velocity must also remain constant! It has nothing to do with pressure!
The liquid flow rate has little to do with pressure and is related to the pressure difference. Gases are related.