New Zealand Journal of Agricultural Research abstracts
Particle swarm optimisation based inversion and numerical
simulation of permeability of oilseed cakes
Xiao Zheng1,*
Guoxiang Lin1
Zhi Li2
Jingzhou Wang1
1Department of Mechanical Engineering
Wuhan Polytechnic University
Wuhan 430023, China
2Department of Electrical and Information Engineering
Wuhan Polytechnic University
Wuhan 430023, China
*Author for correspondence:
zhengxiao580405@163.com
Abstract Considering the variations of
porosity and
permeability of rapeseed cake and dehulled rapeseed cake during
pressing, a one-dimensional partial differential equation for flow of
fluids through porous media of rapeseed cake and dehulled rapeseed cake
was developed based upon the theory of fluid-solid interaction, in
which the cake was deformable and the permeability was variable. An
analytic solution for the problem of fluid-solid interaction of
one-dimensional steady flow of fluids through porous media was
proposed. Permeability parameters of rapeseed cake and dehulled
rapeseed cake were identified by using improved particle swarm
optimisation. Numerical simulations of seepage rates, distribution of
pore pressure and permeability in the cake were made. The results
indicated that the distribution of pore pressure and permeability in
the cake were nonlinear, an exponential function simulated the
relationship between permeability and effective stress well, and the
permeability of rapeseed cake was greater than that of dehulled
rapeseed cake.
Keywords inversion; numerical simulation;
particle swarm
optimisation; permeability; oilseed cakes
A07071; Online publication date 17 December 2007; Received and
accepted 10 August 2007
New Zealand Journal of Agricultural Research, 2007, Vol. 50:
627–634
0028–8233/07/5005–00627© The Royal Society of New Zealand 2007
PDF file of entire paper: Print-quality
(1252K) | screen-quality (896K)
This year's abstracts |
Journal home page |
All abstracts |
Publishing home page
