Evaluation of the drag force on single-walled carbon nanotubes in rarefied gases

Ross Y.M. Wong, Chong Liu, Jun Wang, Christopher Y.H. Chao, Zhigang Li

Research output: Journal article publicationJournal articleAcademic researchpeer-review

13 Citations (Scopus)


The drag force on carbon nanotubes (CNTs) in dilute gases has been previously derived. However, the drag force formulae involve collision integrals, which are complex functions of the gas-CNT interaction potential. The unavailability of the collision integrals and interaction potential makes the application of the theoretical drag force laws impossible. In this work, we develop a potential model for the interaction between a gas and single-walled CNT. The collision integrals are then calculated based on the potential and empirical expressions are proposed. Finally, the drag force is computed directly through molecular dynamics simulations and compared with the theoretical predictions.

Original languageEnglish
Pages (from-to)2311-2319
Number of pages9
JournalJournal of Nanoscience and Nanotechnology
Issue number3
Publication statusPublished - 2012

ASJC Scopus subject areas

  • Bioengineering
  • General Chemistry
  • Biomedical Engineering
  • General Materials Science
  • Condensed Matter Physics


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