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A modified prediction model for viscosity of nanofluids based on molecular dynamics simulation

WENZHENG CUI1,2, ZHAOJIE SHEN1,* , JIANGUO YANG1, SHAOHUA WU2

Affiliation

  1. School of Automotive Engineering, Harbin Institute of Technology, Weihai, China
  2. School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, China

Abstract

Classical viscosity predicting models for conventional-scale particle suspensions failed to predict viscosities of nanofluids. Based on molecular dynamics simulation, the present work deliberated on the effects of absorption layer and nanoparticle agglomeration, and presented a modified predicting model for viscosity of nanofluids. The predicting values of the modified model for viscosities of nanofluids were well in agreement with experimental results. The diameter of nanoparticle agglomeration and thickness of absorption layer were found to be important influencing factors for viscosities of nanofluids that should be considered..

Keywords

Nanofluids, viscosity predicting model, Absorption layer, Nanoparticle agglomeration.

Citation

WENZHENG CUI, ZHAOJIE SHEN, JIANGUO YANG, SHAOHUA WU, A modified prediction model for viscosity of nanofluids based on molecular dynamics simulation, Optoelectronics and Advanced Materials - Rapid Communications, 9, 3-4, March-April 2015, pp.497-501 (2015).

Submitted at: Jan. 22, 2015

Accepted at: March 19, 2015