If I have a 1 ft tapered round hole through a 5 ft thick dam wall at 34 ft deep as shown in the attached diagram, how fast or at what volumetric flow rate will the pressure at that level push the water through the hole?
I know that the answer will depend upon the viscosity of the water and...
I have attached another diagram, and in the diagram I show a round piston with a 1 sq ft surface area pushing water through the pipe out into to open atmosphere at 14.7 psi at a constant velocity of 75 ft/sec. There is a vacuum behind the piston, and I have calculated a 37.9 psi dynamic pressure...
BBB,
You have no idea how rewarding it is to be able to ask questions like these to a professional who really knows and understands the answers. I hope that you have the patience for one or two more. I am trying to only ask you the questions which are crucial to my understanding.
I...
BBB,
Thank you for your response and candid insight.
From the way you described the complexity of the airflow, and how quickly the flow is able to accelerate to rates above Mach 1, and how at the proposed rotational velocity the pump would sputter and stall, it seems to me like the pump is...
BBB,
Let me see if I can explain what I'm looking for.
I understand that if I slowly pump air out of one end of a concealed box, and then at the other end of the box I have a turbine that intakes air, the exposed pressure differences on both the turbine and the pump with be relatively...
BBB,
Once again, thank you for your response.
I don't want to drag it out, so I will keep it as simple as possible. The entire premise of the idea basically rides completely upon this one question. Is the atmospheric pressure of the air in any way shape or form responsible for any of the...
BBB,
Thank you for your response!
In order to give you a picture of the set up I am envisioning, I have included one. I call it a Vacuum Wheel.
According to your calculations, through a 1 sq ft hole into a vacuum, air would flow through the hole with a velocity of 646 SCFS. So, in...
BBB,
You seem brilliant and well educated. So here is my next question in sequence of design.
How much power can be produced by the dynamic pressure of a 49.4 lbm/sec mass or 646 SCFS flow of air?
For instance, If I had a 1 sq ft tube with the above stated air flow flowing through it...
At atmospheric pressure of 14.2 psi, if I had a 1 ft square hole through a 5 foot thick wall into an endless space vacuum, I am trying to find out the the final maximum volumetric flow rate that our atmospheric pressure would push air through the hole.
I tried using Poiseuille's Equation...