A multicomponent framework for energy conserving dissipative particle dynamics (DPD) is presented for the first time in both dimensional and dimensionless forms. Explicit definitions for unknown scaling factors that are consistent with DPD convention are found by comparing the present, general dimensionless governing equations to the standard DPD expressions in the literature. When the scaling factors are chosen based on the solvent in a multicomponent system, the system of equations reduces to a set that is easy to handle computationally. A computer code based on this multicomponent framework was validated, under the special case of identical components, for one-dimensional transient and one- and two-dimensional steady-state heat conduction in a random DPD solid. The results, which compare well with existing DPD works and with analytical solutions in one and two dimensions, show the promise of energy conserving DPD for modeling heat transfer at mesoscopic length scales.
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e-mail: chaudhri@seas.upenn.edu
e-mail: jrlukes@seas.upenn.edu
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Micro/Nanoscale Heat Transfer—Part I
Multicomponent Energy Conserving Dissipative Particle Dynamics: A General Framework for Mesoscopic Heat Transfer Applications
Anuj Chaudhri,
Anuj Chaudhri
Department of Mechanical Engineering and Applied Mechanics,
e-mail: chaudhri@seas.upenn.edu
University of Pennsylvania
, Philadelphia, PA 19104
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Jennifer R. Lukes
Jennifer R. Lukes
Department of Mechanical Engineering and Applied Mechanics,
e-mail: jrlukes@seas.upenn.edu
University of Pennsylvania
, Philadelphia, PA 19104
Search for other works by this author on:
Anuj Chaudhri
Department of Mechanical Engineering and Applied Mechanics,
University of Pennsylvania
, Philadelphia, PA 19104e-mail: chaudhri@seas.upenn.edu
Jennifer R. Lukes
Department of Mechanical Engineering and Applied Mechanics,
University of Pennsylvania
, Philadelphia, PA 19104e-mail: jrlukes@seas.upenn.edu
J. Heat Transfer. Mar 2009, 131(3): 033108 (9 pages)
Published Online: January 23, 2009
Article history
Received:
March 4, 2008
Revised:
October 1, 2008
Published:
January 23, 2009
Citation
Chaudhri, A., and Lukes, J. R. (January 23, 2009). "Multicomponent Energy Conserving Dissipative Particle Dynamics: A General Framework for Mesoscopic Heat Transfer Applications." ASME. J. Heat Transfer. March 2009; 131(3): 033108. https://doi.org/10.1115/1.3056602
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