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News

Title News
09.08.13
Adding heat to solution
A Leeds PhD student (James Shepherd) has started working on adapting SVL's DigiDiss to model heat generating reactions in packed columns. DigiDiss was originally created to simulate dissolution of solids in a liquid medium, by solving the convective-diffusion equation in the same lattice grid that DigiPac uses for particle packing. This means that any digitally described packing structure, either from a DigiPac/DigiDEM simulation or from an X-ray CT scan or even an SEM image, can be used directly thus allowing simulation of dissolution of/within realistic micro-structures. Noyes-Whitney equation, essentially a first order reaction rate expression, is used at solid/liquid interface as the source term, thus linking dissolution at interface and concentration distribution in the bulk of the solution. Since the code provides a framework for solving convective-diffusion type of partial differential equations, it can be relatively easily adapted to suit other purpose.

07.05.13
Collaboration agreement signed between SVL and Institute for Micro-process Engineering and Particle Technology (Germany).
Collaboration between SVL and Institute for Micro-process Engineering and Particle Technology (IMiP) at the Umwelt-Campus Birkenfeld, Germany, is set to bring a faster and better code for DigiDEM simulations. This is to be carried out by a PhD student (Laurent Gilson) jointly supervised by a Leeds University supervisor (Dr X Jia) and IMip supervisor (Prof. Dr.-Ing. Ulrich Bröckel).

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