If the force on that square inch jet of water is indeed 1000pounds force then Newton's Third law tells you that there is 1000pounds reaction force on the tank. The forces must be equal.bluechipx said:Let's say we have a tank with 1000 psi pushing in all directions, if we remove one square inch from an end, now the tank has 1000 psi more at one end than the other. Does this mean that there is a 1000 lb push in the opposite direction of the removed square inch?
Yes, and that's one way of explaining how a rocket generates thrust in a vacuum where "there's nothing to push against". The combustion chamber of a rocket is basically a high-pressure tank with an opening at the back.bluechipx said:Let's say we have a tank with 1000 psi pushing in all directions, if we remove one square inch from an end, now the tank has 1000 psi more at one end than the other. Does this mean that there is a 1000 lb push in the opposite direction of the removed square inch?
sophiecentaur said:If the force on that square inch jet of water is indeed 1000pounds force then Newton's Third law tells you that there is 1000pounds reaction force on the tank. The forces must be equal.
PS IS someone pumping water into the tank to keep the internal pressure constant?
There will be a big practical difference between to two situations. You will need to shift a lot of air, fast, to maintain the sort of pressure compared with doing it with water. But there is a lot of Potential Energy stored in compressed air, compared with the Energy stored in a compressed liquid.bluechipx said:, just air and air pushing water
The initial thrust will be the same as the pressure times the area but things will change once the fluid starts to flow.bluechipx said:Anybody care to venture a guess as to the actual thrust both ways?
Thrust calculation is the process of calculating the amount of force generated by a propulsion system. It is important because it helps determine the performance and efficiency of the system.
Thrust is calculated by multiplying the mass flow rate of the propellant by its exhaust velocity. In the case of a 1000 psi tank with 1in² removed, additional factors such as pressure and area must also be taken into account.
The main factors that affect thrust calculation include the mass flow rate of the propellant, the exhaust velocity, the pressure and temperature of the propellant, and the area of the nozzle or thruster.
The 1000 psi tank and 1in² removed are specific parameters that affect the pressure and area of the system, which in turn impact the thrust calculation. These values must be taken into consideration in order to accurately determine the thrust generated by the system.
Thrust calculation is based on various assumptions and ideal conditions, and may not accurately reflect real-world performance. Factors such as atmospheric conditions, engine inefficiencies, and other external factors can also affect the actual thrust generated by a propulsion system.