Connecting Tank 1 and Tank 2 to create a water level difference is feasible only with the use of a pump. Mechanical pumps, such as hand-cranked models, can operate without electricity but are less efficient than electric pumps. When two tanks are connected, water will flow from the higher pressure tank to the lower until equilibrium is reached. The Venturi effect can influence the rate of pressure equalization between the tanks but will not prevent it.
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Welcome to the PF.Domagoj said:
What's the application?Domagoj said:
Domagoj said:
If the water heights are not equal and the tanks are connected, there will be a water pressure difference that will drive water from the higher pressure (higher height) to the lower pressure, until the two heights are equal.Domagoj said:
The change in pressure due to the Venturi effect only occurs when the liquid or gas is flowing. So it will affect how quickly the two tank pressures equalize, but won't prevent them from equalizing eventually.Domagoj said:
Basically, no, not never ever. You cannot do work without an energy source. All the devices that appear to do that are based on some hidden source of energy (a trick) that is not obvious to the audience. If you define a pump as a device that raises the level of a fluid then all pumps need energy.Domagoj said:
I was referring to something like thissophiecentaur said:
Yes - and a hydraulic ram uses the Power of the water flowing through it. You may regard that as 'free' energy but it's still an energy input. The lower of your two tanks would have to have another outlet, allowing water flow downhill, out of it, to power the Ram.Domagoj said: