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Alternative expression for Boltzmann temperature of dissipative-particle-dynamics particles

Tan, Jian Hong and Yamada, Toru and Asako, Yutaka and Tan, Lit Ken and Che Sidik, Nor Azwadi (2022) Alternative expression for Boltzmann temperature of dissipative-particle-dynamics particles. Numerical Heat Transfer; Part A: Applications, 82 (3). pp. 53-69. ISSN 1040-7782

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Official URL: http://dx.doi.org/10.1080/10407782.2022.2066864

Abstract

The coarse graining parameter has been used to determine parameter values of the dissipative particle dynamics (DPD). However, it is known that the self-diffusivity obtained by the DPD simulation reduces with increasing the coarse graining parameter. In this study, an alternative expression for Boltzmann temperature of the DPD particles is proposed. The self-diffusivity and the dynamic viscosity of water were obtained by using the proposed expression for Boltzmann temperature of the DPD particles and the standard weight function. The obtained self-diffusivity was slightly higher than the measured value in the temperature range from 280 K to 330 K, however, it was independent of the coarse graining parameter. The obtained dynamic viscosity agreed well with value obtained by REFPROP in the temperature range from 280 to 370 K.

Item Type:Article
Uncontrolled Keywords:dynamic viscosities, measured values, self-diffusivity, standard weights
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Malaysia-Japan International Institute of Technology
ID Code:103435
Deposited By: Yanti Mohd Shah
Deposited On:14 Nov 2023 04:33
Last Modified:14 Nov 2023 04:33

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