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On the equation of motion of a particle in a fluid under the influence of a large velocity gradient.

Thomas, P. (1992) On the equation of motion of a particle in a fluid under the influence of a large velocity gradient. Physics of Fluid A: Fluid Dynamics.

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Abstract

The development of the Basset integral appearing in the equation of motion of a particle in a fluid is investigated numerically for the flow across an aerodynamic shock. It is found that for this flow the force acting upon the particle described by the Basset integral can be many times larger than the viscous drag, in the immediate shock region. It is demonstrated how this force affectsthe particle motion across the shock for different particles. The results obtained show that it is permissible to neglect the Basset integral for the theoretical description of the motion of the types of particles commonly used in flow measurement tracer techniques for the kind of flow situation considered.

Document Type:Article
Additional Information: LIDO-Berichtsjahr=1992,
Title:On the equation of motion of a particle in a fluid under the influence of a large velocity gradient.
Authors:
AuthorsInstitution or Email of Authors
Thomas, P.UNSPECIFIED
Date:1992
Journal or Publication Title:Physics of Fluid A: Fluid Dynamics
Refereed publication:Yes
In ISI Web of Science:Yes
Status:Published
HGF - Research field:UNSPECIFIED
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:UNSPECIFIED
DLR - Program:L TG - Querschnittstechnologien
DLR - Research theme (Project):UNSPECIFIED
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Institut für Strömungsmechanik > Institut für Experimentelle Strömungsmechanik
Deposited By: elib DLR-Beauftragter
Deposited On:03 Apr 2006
Last Modified:27 Apr 2009 10:07

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