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Numerical simulation and measurement of liquid holdup in biporous media containing discrete stagnant zones

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http://pubman.mpdl.mpg.de/cone/persons/resource/persons86326

Hlushkou,  D.
Physical and Chemical Foundations of Process Engineering, Max Planck Institute for Dynamics of Complex Technical Systems, Max Planck Society;

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Citation

Kandhai, D., Tallarek, U., Hlushkou, D., Hoekstra, A. G., Sloot, P. M. A., & Van As, H. (2002). Numerical simulation and measurement of liquid holdup in biporous media containing discrete stagnant zones. Philosophical Transactions of the Royal Society A, 360, 521-534. doi:10.1098/rsta.2001.0952.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0013-A0D0-F
Abstract
We have studied hydrodynamic dispersion in single-phase incompressible liquid flow through a fixed bed made of spherical, permeable (porous) particles. The observed behaviour was contrasted with the corresponding fluid dynamics in a random packing of impermeable (non-porous) spheres with an interparticle void fraction of 0.37. Experimental data were obtained in the laminar flow regime by pulsed field gradient nuclear magnetic resonance and were complemented by numerical simulations employing a hierarchical transport model with a discrete (lattice Boltzmann) interparticle flow field. Finite-size effects in the simulation associated with the spatial discretization of support particles or dimension and boundaries of the bed were minimized and the simulation results are in reasonable agreement with experiment.