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基于FLUENT计算流体力学软件,模拟A357铝合金大型复杂构件所用淬火槽内介质流场分布情况。分别采用两类淬火槽结构(未置搅拌系统和配置搅拌系统),对槽内介质流速及流场均匀性进行模拟计算。结果表明,对于未置搅拌系统的淬火槽,其内部介质流场未发现明显的规律性;而对于配置搅拌系统的淬火槽,在不同工艺参数条件下,其内部介质流场均具有一定的规律性。可知,配置搅拌系统的淬火槽优势明显。另外,获得了流场均匀性较合适工艺参数。最后,通过与文献中的结果进行对比,验证所建计算模型,该模型具有很高的计算精度,能对淬火槽的结构进行优化,从而为大型构件的热处理提供技术支持和理论指导。
Based on the FLUENT computational fluid dynamics software, the flow field distribution in the quenching tank of A357 aluminum alloy large-scale complex components was simulated. Two types of quenching tank structure (without stirring system and mixing system) were adopted to simulate the flow velocity and flow field uniformity in the tank respectively. The results show that there is no obvious regularity for the flow field inside the quench tank without agitating system. For the quench tank with agitating system under different process parameters, the internal medium flow field has a certain regularity Sex. We can see that the advantages of quenching tank configuration stirring system obvious. In addition, the uniformity of the flow field is obtained compared to the appropriate process parameters. Finally, by comparing with the results in the literature, the calculated model is validated. The model has high calculation accuracy and can optimize the structure of the quenching tank, thus providing technical support and theoretical guidance for the heat treatment of large components.