> From my experience with ballast tanks on a ship, where sloshing produces
> undersirable rolling movement of the entire ship: Seems like four vertical
> partition baffles would work well. Looking down from the top of the
> tank,they would be arranged in the shape of the pound sign,#.
> They would prevent the bulk of the propellant from moving to one
> side of the tank and thus allowing only a short Center of Gravity shift
>. Rings would only slow the shifting motion of the propellant, not
> preventing it as much as vertical baffles which would compartmentalize
> the tanks.
What about making such baffles from a moderately extensible (ie "stretchy")
material or even one with SOME ability to pass fluid such that energy is
dissipated in the process and/or you get damping? Such a system could
(perhaps) be both lighter weight and more effective than rigid baffles. The
potential for gas entrainmentn (frothing) of the fluid may need to be
considered. A really sophisticated version could attempt dynamic damping,
but the law of diminishing returns (aka ygrenys) probably applies
"Shade cloth" (subject to compatibility with fluid involved) may be a good
material to experiment with :-)
Russell McMahon
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