CFD-DEM Study of Bridging Mechanism of Particles in Ceramic Membrane Pores under Surface Filtration Conditions

In the surface filtration process with pores larger than particle size, formation of bridges plays a crucial role in filter cake structure and efficiency throughout process. First, to understand microscopic information required for bridging mechanism, we use two-way coupling computational fluid dynamics (CFD)–discrete element method (DEM) simulate deposition characteristics particles ceramic membranes. Next, by dynamically observing morphology particles, mechanism was revealed at level single hole. Then, studied influence concentration inlet velocity on bridge erection The results show that function runs through clean stage transition stage. Particle flow rate have efficiency.