J. W. Turner

Publications (2)2.79 Total impact

• Article: On the scattering function of simple fluids in finite systems

  M. Malek Mansour, A. L. Garcia, J. W. Turner, M. Mareschal
  [show abstract] [hide abstract]
  ABSTRACT: The density-density dynamical correlation function of a simple fluid in a finite container subject to a constant temperature difference is explicitly obtained. In small systems, such as those realized in computer experiments, new peaks appear in the scattering spectrum, even at equilibrium, arising from standing waves produced by the fluctuations. Away from equilibrium, these peaks are asymmetric in the same manner as the Brillouin lines. The macroscopic limit is also considered and the correction to the usual infinite system approximation is explicitly obtained.
  Journal of Statistical Physics 06/1988; 52(1):295-309. · 1.40 Impact Factor
• Article: Stochastic theory of adiabatic explosion

  F. Baras, G. Nicolis, M. Malek Mansour, J. W. Turner
  [show abstract] [hide abstract]
  ABSTRACT: A stochastic description of an exothermic reaction leading to adiabatic explosion is set up. The numerical solution of the master equation reveals the appearance of a long tail and of multiple humps of the probability distribution, which subsist for a certain period of time. During this interval the system displays a markedly chaotic behavior, reflecting the random character of the ignition process. An analytical description of this transient evolution is developed, using a piecewise linear approximation of the transition rates. A comparison with other transient phenomena observed in stochastic theory is carried out.
  Journal of Statistical Physics 06/1983; 32(1):1-23. · 1.40 Impact Factor