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Author(s): Fangming Jiang1 and Antonio C.M. Sousa2, 3
Abstract:
In this chapter, the current state-of-the-art and recent advances of a novel numerical
method – the Smoothed Particle Hydrodynamics (SPHs) will be reviewed through
case studies with particular emphasis to fluid flow and heat transport.
To provide
sufficient background and to assess its engineering/scientific relevance, three particular
case studies will be used to exemplify macro- and nanoscale applications of
this methodology.
The first application deals with magnetohydrodynamic (MHD)
turbulence control.
Effective control of the transition to turbulence of an electrically
conductive fluid flow can be achieved by applying a stationary magnetic field,
which is not simply aligned along the streamwise or transverse flow direction, but
along a direction that forms an angle with the main fluid flow in the range of 0◦
(streamwise) to 90◦ (transverse).
The SPH numerical technique is used to interpret
this concept and to analyze the magnetic conditions.
The second application deals
with non-Fourier ballistic-diffusive heat transfer, which plays a crucial role in the
development of nanotechnology and the operation of submicron- and nanodevices.
The ballistic-diffusive equation to heat transport in a thin film is solved numerically
via the SPH methodology.
The third application deals with mesoscopic pore-scale
model for fluid flow in porous media.
SPH simulations enable microscopic visualization
of fluid flow in porous media as well as the prediction of an important
macroscopic parameter – the permeability.
Keywords: CFD, Numerical methods, Smoothed particle hydrodynamics
10. 1 Introduction:
A novel numerical method – the smoothed particle hydrodynamic (SPH) offers a
relatively flexible tool for heat and fluid flow computations, as it can cope with a
wide range of space scales and of physical phenomena.
SPH is a meshless particlebased
Lagrangian fluid dynamics simulation technique, in which the fluid flow is
...
Pages: 42
Size: 2,015 kb
Paper DOI: 10.2495/978-1-84564-144-3/10
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