On the motion of small heavy particles in an unsteady flow

Z. Dodin, T. Elperin

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


Motion of a small spherical heavy particle subjected to the Stokes drag force and the force of gravity in a nonstationary fluid flow is studied. An analytical solution of the equation of the particle motion at a short-time interval and conditions for validity of this solution are obtained. For the case of a long-time motion the velocity and the acceleration of the particle are found. The velocity is obtained up to the second-order terms with respect to the Stokes response time and the acceleration is obtained up to the first-order terms.

Original languageEnglish
Pages (from-to)3231-3234
Number of pages4
JournalPhysics of Fluids
Issue number8
StatePublished - 1 Jan 2004

ASJC Scopus subject areas

  • Computational Mechanics
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes


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