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