热等静压机炉内的流动换热仿真分析
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摘要
目前热等静压技术已广泛应用于航空航天和冶金等行业,用于生产高质量产品和制备新型材料。为了探究热等静压机内部的流动和换热特性,本文采用数值研究的方法对热等静压机加热过程进行了模拟。结果表明,炉体内自然对流换热规律明显,热壁面氩气上流冷壁面氩气下流,整体温度呈现上高下低的状态。此外,热等静压机在加热过程中仅仅依靠加热器和周围环境换热不能保证炉内温度的均匀一致性,风扇等混合装臵起重要作用。
引文
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2 DE VAHL DAVIS G,JONES I P..Natural Convection of Air in a Square Cavity[J].Int J Numerical Methods in Fluids,1983(3):249-264
3 KEYHANI M,et al.An Experimental Study on Natural Convection in a Vertical Cavity with Discrete Heat Sources[J].ASMEJ.of Heat Transfer,1988,110:616-624
4 BARAKOS G,MITSOULIS E,ASSIMACOPOULOS D.Natural convection flow in a square cavity revised:laminar and turbulent models with wall function[J].Int J Numerical Methods in Fluids,1994,18(7)695-719
5 BLANCHARD L A,BRENNECKE J F.Recovery of organic produces from ionic liquids using supercritical carbon dioxide[J].Ind Eng Chem Res,2001,40(1):287-292
6杨伟,常建国,魏国朝,张树光.空气物性对封闭腔体自然对流数值模拟的影响[J].力学季刊2013(4)