Numerical investigation of the influence of roughness on the laminar incompressible fluid flow through annular microchannels

The main objective of this work is to investigate, by means of numerical simulation, the effects of the surface roughness on the laminar fluid flow through annular microchannels, and to propose a method to take into account the surface roughness effects in the calculation or simulation of the fluid...

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Bibliographic Details
Published in:International journal of heat and mass transfer 2007-05, Vol.50 (9), p.1865-1878
Main Authors: Valdés, José R., Miana, Mario J., Pelegay, José Luis, Núñez, José Luis, Pütz, Thomas
Format: Article
Language:English
Subjects:
Applied fluid mechanics
Applied sciences
Exact sciences and technology
Fluid dynamics
Fluid flow
Fluidics
Fundamental areas of phenomenology (including applications)
Machine components
Mechanical engineering. Machine design
Microchannels
Numerical simulation
Physics
Seals and gaskets
Surface roughness
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Summary:The main objective of this work is to investigate, by means of numerical simulation, the effects of the surface roughness on the laminar fluid flow through annular microchannels, and to propose a method to take into account the surface roughness effects in the calculation or simulation of the fluid flow through these microchannels. This method is based on the classical viscous flow equations, and consists in building an equivalent smooth channel with the same flow resistance as the “rough” one.
ISSN:0017-9310
1879-2189
DOI:10.1016/j.ijheatmasstransfer.2006.10.006