将求解气体辐射传递方程的离散坐标法与描述非灰气体辐射特性的灰气体加权和模型结合,来研究气体介质参与的辐射换热问题.不同的坐标离散方法--SN法、TN法、SRAPN法与灰气体加权和模型结合,得到不同的非灰气体离散坐标法.分别用非灰气体的SN法、TN法、SRAPN法对一个三维炉况进行模拟,得到炉膛内介质的温度分布及壁面热流分布,比较了不同非灰气体离散坐标法的计算时间和精度.结果表明,SN法和TN法与灰气体加权和模型结合能较好地模拟气体介质参与的辐射换热问题.
参考文献
| [1] | Liu J;Tiwari S N .Investigation of radiative transfer in nongray gases using a narrow band model and Monte Carlo simulation[J].ASME Journal of Heat Transfer,1994,116:160-166. |
| [2] | Edwards D K;Balakrishnan A .Thermal radiation by combustion gases[J].International Journal of Heat and Mass Transfer,1973,16(01):25-40. |
| [3] | Soufiani A;Djavdan E .A comparison between weighted sum of gray gases and statistical narrow band radiation models for combustion applications[J].Combustion and Flame,1994,97:240-250. |
| [4] | Smith T F;Shen Z F;Friendmen J N .Evaluation of coefficient of the weighted sum of gray gases model[J].ASME Journal of Heat Transfer,1982,104:602-608. |
| [5] | Fiveland;W A .Discrete-ordinates solutions of the radiative transport equation for rectangular enclosures[J].ASME Journal of Heat Transfer,1984,106:699-706. |
| [6] | 魏小林,徐通模,惠世恩.用改进的离散坐标法计算炉内三维辐射传热[J].燃烧科学与技术,2000(02):140-145. |
| [7] | Kim T K;Menart J A;Lee H S .Nongray radiative gas analyses using the S-N discrete ordinates method[J].ASME Journal of Heat Transfer,1991,113:946-952. |
| [8] | Thurgood C F;Becher H A;Pollard A .The TN quadrature set for the discrete ordinates method[J].ASME Journal of Heat Transfer,1995,117:1068-1070. |
| [9] | 李本文;魏小林 .离散坐标SRAPN法及其与TN法的比较[J].计算物理,1998,15(06):735-741. |
| [10] | 聂宇宏,陈海耿.WSGGM结合离散坐标法研究非灰气体辐射换热问题[J].东北大学学报(自然科学版),2001(04):443-445. |
| [11] | Liu F.;Bindar Y.;Becker HA. .A comparative study of radiative heat transfer modelling in gas-fired furnaces using the simple grey gas and the weighted-sum-of-grey-gases models[J].International Journal of Heat and Mass Transfer,1998(22):3357-3371. |
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