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MathGroup Archive 1996

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Re: Calculating an Isentrope

  • To: mathgroup at smc.vnet.net
  • Subject: [mg5116] Re: [mg5077] Calculating an Isentrope
  • From: Andrei Constantinescu <constant at athena.polytechnique.fr>
  • Date: Wed, 30 Oct 1996 22:04:29 -0500
  • Sender: owner-wri-mathgroup at wolfram.com

The simple thing is to write everything as a system of ordinary differential 
equations:

 dE/dV + dE/dT DdT/dV = - P 

consider now the unknown function T depending on the variable V , with the 
initial point T(Vi) = Ti and integrate evrything in the interval (Vi,Vf) 
using NDSolve. 

I do not have mathematica at the moment but you should write something of the
kind:

 NDSolve[  dE/dV + dE/dT T'[V] = -P , T[V] , {V,Vi,Vf} ]


 a + andrei

______________________________________________________________________
  Andrei Constantinescu               constant at athena.polytechnique.fr   
                                                                       
  LMS Ecole Polytechnique                  tel:   (33)-1-69.33.33.30
  91128 PALAISEAU cedex - FRANCE           fax:   (33)-1-69.33.30.26    



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