THE EQUILIBRIUM OF A VELOCITY-VERLET TYPE ALGORITHM FOR DPD WITH FINITE TIME STEPS

J. B. Gibson (), K. Chen and S. Chynoweth
Additional contact information
J. B. Gibson: Department of Mathematical Sciences, University of Liverpool, Liverpool L69 3BX, U.K.
K. Chen: Department of Mathematical Sciences, University of Liverpool, Liverpool L69 3BX, U.K.
S. Chynoweth: Shell Global Solutions, Thornton, P.O. Box 1, Chester CH1 3SH, U.K.

International Journal of Modern Physics C (IJMPC), 1999, vol. 10, issue 01, 241-261

Abstract: Dissipative particle dynamics (DPD) originated as a tool for performing fluid dynamics simulations of complex fluids and amongst other things has been used to simulate dilute polymer solutions. The technique employed an Euler time-stepping technique up until recently, when a velocity-Verlet type algorithm was proposed. This paper presents a more accurate velocity-Verlet and analyses the equilibrium properties of this new technique for finite time-steps. An expression for the temperature in terms of the basic DPD parameters is derived for this scheme.

Keywords: Dissipative particle dynamics; Particle simulation; Finite difference methods; Velocity-Verlet (search for similar items in EconPapers)
Date: 1999
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DOI: 10.1142/S0129183199000176

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