Gas dynamics at the micro-scale: a review of progress in hydrodynamic modelling
Reese, Jason M., Lockerby, Duncan A. and Emerson, David R. (2009) Gas dynamics at the micro-scale: a review of progress in hydrodynamic modelling. In: 2nd Micro and Nano Flows Conference, Brunel University, West London, U.K., Sep 1-2, 2009 pp. 1-8. (In Press)Full text not available from this repository.
Official URL: https://pure.strath.ac.uk/portal/files/9662693/Ree...
We review some recent developments in the modelling of non-equilibrium (rarefied) gas flows at the micro- and nano-scale using extended hydrodynamic models. Following a brief exposition of the challenges that non-equilibrium poses in micro- and nano-scale gas flows, we outline the field of extended hydrodynamics, describing the effective abandonment of Burnett-type models in favour of high-order regularised moment equations. We then review the boundary conditions required if the conventional Navier-Stokes-Fourier (NSF) fluid dynamic model is applied at the micro scale, describing how 2nd-order Maxwell- type conditions can be used to compensate for some of the non-equilibrium flow behaviour near solid surfaces. While extended hydrodynamics is not yet widely-used for real flow problems because of its inherent complexity, we finish with an outline of recent ‘phenomenological extended hydrodynamics’ (PEH) techniques — essentially the NSF equations scaled to incorporate non-equilibrium behaviour close to solid surfaces — which offer promise as engineering models.
|Item Type:||Conference Item (Paper)|
|Subjects:||T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TJ Mechanical engineering and machinery
|Divisions:||Faculty of Science > Engineering|
|Page Range:||pp. 1-8|
|Publication Status:||In Press|
|Access rights to Published version:||Open Access|
|Funder:||Engineering and Physical Sciences Research Council (EPSRC)|
|Grant number:||EP/F002467/1, EP/D07455X/1, EP/D007488/1, EP/F028865/1 (EPRSC)|
|Conference Paper Type:||Paper|
|Title of Event:||2nd Micro and Nano Flows Conference|
|Type of Event:||Conference|
|Location of Event:||Brunel University, West London, U.K.|
|Date(s) of Event:||Sep 1-2, 2009|
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