Y. Rong, Worcester Polytechnic Institute, Worcester, MA; J. Kang, Y. Luo, Tsinghua University, Beijing, China; B. Liu, Key Laboratory for Advanced Materials Processing Technology, MOE, Beijing, China
The structure of wind tunnel and nozzle system in gas quenching furnace determines the gas speed at the nozzles, which exerts considerable effect on the cooling rate and temperature distribution of the load. The gas flow in the wind tunnel was simulated by the software FLUENT. And the effects of various structural parameters, such as the chamfer of caecum of wind tunnel, the distance between the last nozzle and the caecum, the length and the tapering of the nozzle, on the gas velocity at the outlet of nozzles were investigated. The results show that the uniform of gas velocity at the outlet nozzles improves with the increase of the chamfer radius between the nozzle and wind tunnel and the use of tapered nozzle greatly improves the outflow gas velocity and its uniformity of distribution.
Summary: The gas flow in the wind tunnelgas quenching furnace was simulated by the software FLUENT. And the effects of various structural parameters , such as the chamfer of caecum of wind tunnel, the distance between the last nozzle and the caecum, the length and the tapering of the nozzle, on the gas velocity at the outlet of nozzles were investigated.
