Free energy from pseudo forces?

[brian334]

Coriolis force is the counterforce that breaks a rotation if the mass in the rotation is moving radially outwards from the center of rotation.

Gibberish

[Low-Q]

Yes. The mass will accelerate tangential and therfor provide a pressure against the wall I the tube in opposite direction of rotation. Vidar.

[Low-Q]

Yes. The mass will accelerate tangential and therfor provide a pressure against the wall I the tube in opposite direction of rotation. Vidar.

The Coriolis effect is seen in the vortex of water or in the clouds that moves with the wind. If the wind blows from the North pole in south direction, the wind will theoretically move in a stright line in space, but will curve to the right relative to the ground due to earth rotation. In a radial aligned tube, the radially moving mass is prevented to move in a stright line in space, but follow the rotation instead. As the mass moves closer to the periphery the velocity will increase tangentially. This tangential acceleration of mass will counterforce rotation. Maybe the name of this force isn't Coriolis force, but never the less, the force is there to break rotation.

This force is something I know well because I have tested it. I used a drill and a carbon tube with an inlet in the center. I can feel great torque in the drill as the water flows outwards through the rotating tube. I will do a second test with 90 degrees bended nozzles at the periphery. I will report the results in this thread.

Vidar

[Low-Q]

I did a small test with a 1m plumbing tube which is 32mm in diameter I bought yesterday. I attached a plastic bag in one end that was filled with air. Then I held the tube, with the bag towards me, and started to spin myself around with 1/2 round pr. second. It took about 6 seconds to inflate the plastic bag, or 3 rounds.

Then I put on a 90 degree bend, pointing towards the rotation. I repeated the experiment, and found that the bag does not inflate at all - it keeps its volume no matter how long time I spin it around.

Then I changed the direction of the bend to point away from rotation. With same speed, it now took about 3 seconds to inflate the bag, or 1 1/2 round.

I could not measure the Coriolis torque, but the results of the experiment clearly shows that the air flow increase 100% when the bend points in opposite direction of rotation, and the flow decrease 100% when the bend points towards rotation compared to have no bend, or the bend pointing angular to rotation.

That also mean that the Coriolis countertorque is doubled at double air flow, but is some how compensated by the greater outputspeed of the air away from rotation. I cannot confirm if there is a perfect balance between the Coriolis counterforce and the forward force provided by the outlet air flow. But I assume the drag behind the output created an additional sub-pressure which increased the air flow through the tube.

It also mean that the Coriolis force are zero when the bend points towards rotation since there is no airflow in the tube. The pressure in front of the output perfectly balance the centrifugal force. This can at least confirm that is does not take energy to maintain rotation in this particular demonstration, but is is not possible to harness energy out of it either.

The big question is wether it takes energy or not to spin the tube when the bend points away from the rotation - where the air flow increased by 100%.

Vidar

[Cherryman]

Here is a nice example of the concept:

http://www.youtube.com/watch?v=x1TTc8t1pOc&feature=related