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Transformations du milieu continu - mms2

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Retour sur la conservation de la masseρ dv = ρ 0 dV = ρ J dV =⇒ ρ 0 = Jρinterprétation en terme de changement de variable dans uneintégrale sur un domaine matériel D(t)∫∫ρ(x , t) dv = ρ(Φ(X , t), t) J dVD(t)D 0} {{ }ρ 0 (X )avec D 0 = Φ −1 (D(t))Le gradient de la transformation 22/75

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