To simulate steady airflows inside of wall-flow diesel paniculate filters (DPF) with differentreverse blowing pipes collocation, a mathematical model of the flow in a DPF is established by anequivalent continuum approach. The experimental results agree well with the theoretical values calcu-lated from the model. Simulation shows that the velocity and the pressure distribution of the filters inthe regenerative process are key factors to the filter’s regeneration. How to decrease themal-distribution of the flow in the filter and how to achieve the better regenerative performance at theleast cost of air consumption in the regenerative process are the ultimate goals of the study. Calculationand experiments show that the goals can be realized through adjusting the angle of two reverse blowingpipes and their relative location suitably.
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