Numerical Simulation of a Multiphase Flow inside a Diesel Particulate Filter
Congress: JEM
ABSTRACT:
Nowadays, air pollution is one of the greatest problems that humankind is trying to mitigate. Since vehicle emissions are a main source of air pollution main causes, many efforts have been made to control this problem. A specific case is vehicles with diesel engines, which use a device called Diesel Particulate Filter, or just DPF, to control the exhausted particulates. It is important to study the behavior of air and particulates inside this device to better understand the problem’s physics, making it possible to improve it. Then, one way to achieve that effectively is by carrying out numerical simulations. In this scenario, this work aims to develop a computational code that can accurately calculate the particulates’ behavior along with the flow. In order to do that, this case, which is a multiphase flow problem with air and particulates, is modeled in such a way that the air is treated from an Eulerian point of view through the Navier-Stokes equations while the particulates are treated in a Lagrangian way by using Newton’s second law. Finally, the developed code is used to simulate a case found in the literature, allowing the results obtained in this work to be compared with the literature ones, making it possible to verify the code’s reliability.