基于计算流体力学的A357合金大型复杂构件所用淬火槽内介质流场分布模拟（英文）

发布时间：2019-08-19 07:44

【摘要】：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。
[Abstract]:Based on FLUENT computational fluid dynamics software, the distribution of medium flow field in quenching tank for large and complex components of A357aluminum alloy is simulated. Two kinds of quenching tank structures (unequipped mixing system and equipped stirring system) are used to simulate the velocity and flow field uniformity of the medium in the tank. The results show that the internal medium flow field has no obvious regularity for the quenching tank without stirring system, but for the quenching tank equipped with stirring system, the internal medium flow field has certain regularity under different process parameters. It can be seen that the quenching tank with stirring system has obvious advantages. In addition, the suitable process parameters of flow field uniformity are obtained. Finally, by comparing with the results in the literature, the calculation model is verified. The model has high calculation accuracy and can optimize the structure of quenching tank, thus providing technical support and theoretical guidance for the heat treatment of large components.
【作者单位】：西北工业大学凝固技术国家重点实验室陕西省摩擦焊接工程技术重点实验室;哈尔滨工业大学材料科学与工程学院;
【基金】：Project(51405389)supported by the National Natural Science Foundation of China Project(2014003)supported by the Shanghai Key Laboratory of Digital Manufacture for Thin-walled Structures,China Project(3102015ZY024)supported by the Fundamental Research Funds for the Central Universities,China Project(108-QP-2014)supported by the Research Fund of the State Key Laboratory of Solidification Processing,Northwestern Polytechnical University,China
【分类号】：TG156.3

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