On Sun, 2 Feb 2003, Donald Qualls wrote:
> The problem with a metal foam is that there's no reliable way to ensure
> that every pore gets adequate flow without pumping much more water than
> most of the pores need...
Worse, if (dim) memory serves, there are flow instabilities -- associated
with things like the temperature dependence of viscosity -- which tend to
guarantee that you *don't* get even flow out of a foam, unless you really
flood it.
Henry Spencer
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