Simulation of filtration processes in deformable media Part 3.2: Interaction modelling and verification of a non-spherical dirt particle solver

• Main Authors: G Boiger, M Mataln, W Brandstätter
• Format: Article
• Language: English
• Published: Multi-Science Publishing 2016-04-01
• Series: International Journal of Multiphysics
• Online Access: http://journal.multiphysics.org/index.php/IJM/article/view/112

A Lagrangian solver to realistically model large, non-spherical dirt particlesand their behavior in the vicinity of deformable filtration fibres has beenprogrammed. While this paper focuses on the realization of interactioneffects and result verification, a related article, concerning basic solverconcepts as well as drag force implementations, has been published, [3].A digitally reconstructed, deformable filter fibre structure gives theframework for all particle interactions with their surroundings. Particle–fibredeposition effects, are being modelled in detail. Fibre forces, that act on aparticle and confine it, can be applied on a user-defined basis. The collisionmodule handles particle–particle interactions, detects exact particlesurfaceimpact locations and calculates translational- as well as rotationalcollision effects.In order to validate Computational Fluid Dynamics results, like filter fibreefficiency and particle penetration depth, a semi-analytical verificationapproach for simplified fibre geometries has been devised. In addition tothat, extensive, experimental test runs are currently conducted.