This article utilizes the standard k-c turbulent model to simulate a corncob incinerator using the PISO algorithm with computational fluid dynamics (CFD). The flow patterns of the incinerator equipped with secondary air inlets are predicted andcompared for the various geometrical layouts. It is demonstrated that a wider recirculation zone can be found while the inclined angles of inlets increased, so a longer residence time and higher combustion efficiency will be expected. The longer distancebetween primary and secondary inlets will facilitate the formation of recirculation zone in this bigger space. The more the number of the secondary air inlets, the less the resident air in the top recirculation zone near the exit of the furnace. By usingthe CFD technique, the flow field of the incinerator can be understood more precisely, and it can serve as an excellent design tool. Furthermore, the computational program can be composed with FORTRAN and set up on a PC, and can easily be analyzed to getthe flow field of the corncob incinerator
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