[We agree for A and B.]
> c) wheel like, with only the rim having air, the spokes
> separate from the rim
>
> In this configuration, the relevant maximum height is, I think,
> the ceiling. Perhaps I am wrong -- does someone know?
I'm not sure what you are saying. It is fair to take the
solution for a cylinder and restrict it to the part of a cylinder
that you have. ....
We may have interpreted the configuration differently. I interpreted
C as meaning a torus, or donut, or `like the inner tube of a tire'.
.... The short columns must have the same pressure distribution as
the long columns in the spokes, since they are in equilibrium with
each other at any given height. Now C is nothing but short
columns--again nothing changes.
Except that this `inner tube' or torus arrangement has no long columns
of air within spokes.
Let me put this another way:
Given (by the specification) that the pressure at the rim is 1 bar
and the surface acceleration is 10 m/s^2,
Case 1: the spinning tuna can
The air column above a point on the rim is 10 km, going to
the other side, and it is 5 km to the central spin axis.
Case 2: the spinning donut
The air column above a point on the rim is 1 km, although the
diameter of the torus is 10 km.
In each case, what is the air pressure at an altitude of 1 km from
the rim?
For case 1, based on what Erik wrote, the pressure is 0.988 of the
rim pressure. What is the air pressure for case 2?
--
Robert J. Chassell Rattlesnake Enterprises
http://www.rattlesnake.com GnuPG Key ID: 004B4AC8
http://www.teak.cc [EMAIL PROTECTED]
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