Recent content by fahey32

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    Time taken to freeze ice vertically from top exposed surface

    Sorry If I was a bit lazy with the calculations I wrote this intermittently over the last 24 hours. Also for the top surface I just used this calculator (http://www.thermal-wizard.com/tmwiz/convect/natural/hup-isot/hup-isot.htm) which gave me a Rayleigh number less than 2e4 and hence no Nusselt...
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    Time taken to freeze ice vertically from top exposed surface

    Hi guys, New to the forum wanted a little help in designing an insulated ice mold. Basically the objective is to force the water in the mold to freeze axially or in one direction in order to make clear ice. Ideally, the time taken for the ice cube to freeze from the top surface exposed to the...
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    The significance of pi in a markov chain

    A question in regards to nomenclature. I am curious as to the significance of using the symbol π for a time-independent distribution. Does it have any relation to the number π or circular geometry? Or does it come maybe from the invariance of i in the P Matrix such that Pi,j → πj? I don't like...
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