Multi-Dimensional Modeling and Simulation of Wall-Flow Diesel Particulate Filter During Loading and Regeneration

A finite-volume-based two-dimensional wall-flow diesel particulate filter regeneration model

“…Another important finding that can be drawn from Figure 10 is that the flow field profile in the inlet channel is not the mirror image of that in outlet channels and vice-versa, which is often assumed in other existing models [35]. <Figure 10>…”

Nanoparticle motion trajectories and deposition in an inlet channel of wall-flow diesel particulate filter

“…The time constant of channel flow in DPFs is of the order of 10 −2 s, which is much smaller than the time scale of transient loading condition (Guo & Zhang, 2006). Furthermore, it is assumed that the particle feedback on the flow is negligible due to the extremely dilute particle concentration.…”

“…The effects of inlet cones and boundary conditions were investigated. Guo and Zhang (2006) developed a multi-dimensional model to study the flow and temperature fields of representative channels. The three-dimensional Navier-Stokes equations were simplified by employing order of magnitude analysis.…”

A novel 1D approach for the simulation of unsteady reacting flows in diesel exhaust after-treatment systems

“…A 3D approach may provide very detailed information but, on the other hand, the computational time may be high. In order to reduce the computational effort, some researchers combine 3D Navier-Stokes equations with 1D equations [8,9]. Finally, a further simplification of the problem consists of using 0D lumped parameter models [10], which are suitable to run on very low-performance CPUs, like the Electronic Control Units (ECU).…”