Re: [Phys-l] App. for Was: Re: T dS versus dQ

[Bernard Cleyet <bernardcleyet@redshift.com>]

A visual demonstration:  hang a bunch of low density threads from the piston.  My "minds eye"  sees their coiling below on the bottom with little horizontal movement (except at the coiling) when the piston is pushed down slowly.  A rapid movement would result in confusion, yes?

bc thinks a non flat and, or non horizontal piston will result in greater delta S.






On 2010, Feb 09, , at 20:36, LaMontagne, Bob wrote:

> Since commercial programs can now model turbulence in fluids fairly well, it seems that we should be close to specifying and solving this mundane but still complex problem of a simple circular cylinder and flat piston.
>
> Bob at PC