期刊文献+

考虑谷物呼吸的仓储粮堆热湿耦合传递研究 被引量:6

STUDY ON THE COUPLED HEAT AND MOISTURE TRANSFER IN STCORED GRAIN CONSIDERING GRAIN RESPIRATION
下载PDF
导出
摘要 粮食作为生物性多孔介质,具有呼吸特性。一般粮食收获后,大部分时间在密闭不通风状态下存储。以粮堆内局部热湿耦合传递过程作为研究对象,分析了不通风状态下的圆筒形粮仓在自然对流条件下由于温度梯度影响而产生近似冬夏季工况的温度分布和水分转移,借助多物理场数值模拟软件(COMSOL)进行数值模拟,将粮食呼吸作用产热、产湿量以热源、湿源项考虑在数学模型中,通过对温度场、水分场的描述指导工程实践。 Grain has respiration character because of it' s biological porousmedium. Grain had been generally stored in a closed space without ventilation after harvesting. This paper take the coupled heat and moisture transfer in part of grain bulk as research object to analyse the temperature distribution and moisture transfer just like in winter and summer caused by temperature difference at natural convection in cylindrical barn, with the help of multi--physics field numerical simulation software(COMSOL) to take numerical simulation with considering the heat and moisture sourse caused by grain respiration in the mathematical model. By analyzing the temperature field and moisture field to guide enigeering practice.
出处 《粮食储藏》 2014年第5期21-27,49,共8页 Grain Storage
基金 国家自然科学基金资助项目(No.51276102) 山东省自然科学基金资助项目(No.ZR2011EEM011)
关键词 生物性多孔介质 呼吸作用 多物理场数值模拟 biological porous medium, respiration, multi--physics numerical simulation, non--ventilation
  • 相关文献

参考文献8

  • 1J. Lawrence, D. E. Maier, R. L Stroshine. Three-- dimensional transient heat, mass, momentum, and spe- cies transfer in the stored grain ecosystem, part I. model development and evaluation. Transactions of the ASAE. 2013, Vol. 56 (1): 179-188.
  • 2A. Gaston, R. Abalone, R. E. Bartosik, J. C. Rodr guez. Mathematical modelling of heat and moisture transfer of wheat stored in plastic bags (silo bags), bio --systems engineering 104 (2009) 72-85.
  • 3K. K. Khankari, R. V. Morey, S. V. Patankar. Mathematical model for moisture diffusion in stored grain due to temperature gradients. Transactions of the ASAE. 1994, 37 (5): 1591-1604.
  • 4Mahesh PRAKSDH, Yuguo LI, Graham R. THORPE. A study of natural convection heat and mass transfer in re- spiring hygroscopic porous rmredia. Second international ccra- ference on tED in the minerals and process industries. CSIRO, Melbourne, Australia 6-8 December 1999.
  • 5Rita Abal one, Analia Cast o n, Armando Cassinera, Miguel A. Lara. MODELIZACIoN DE LA DISIRIBUCIoN DE LA TEMPERA Y HUMEDAD EN GRANOS ALMA- CENADOS EN SILOS Alberto Cardona, Norberto Nigro, Victorio Sonzogni, Mario Storti. (Eds.) Santa Fe, Argenti- na, Noviembre 2006.
  • 6王远成,张忠杰,吴子丹,丁德强,王双凤.计算流体力学技术在粮食储藏中的应用[J].中国粮油学报,2012,27(5):86-91. 被引量:62
  • 7朱正刚,KALISKE Michael.多孔介质在压力梯度作用下的热质耦合数值模拟[J].计算力学学报,2011,28(3):388-393. 被引量:5
  • 8张雪艳,周爱霞.时动边界上热传导问题的求解方法[J].廊坊师范学院学报(自然科学版),2010,10(2):9-12. 被引量:4

二级参考文献57

  • 1赵国忠.拟线性抛物型积分微分方程动边界的有限元法[J].阴山学刊(自然科学版),2009,23(1):5-8. 被引量:2
  • 2胡其华,吴小庆.酸化过程中的动边界问题的近似解[J].西南石油学院学报,2006,28(1):46-48. 被引量:2
  • 3孙健,陶建华.潮流数值模拟中动边界处理方法研究[J].水动力学研究与进展(A辑),2007,22(1):44-52. 被引量:17
  • 4孙志忠.偏微分方程数值解法[M].北京:科学出版社,2004.
  • 5A Friedman. Partial Differential Equations of Parabolic Type[ M ]. Florida: Krieger, 1983.
  • 6A shidfar, G R Karamali. Numerical solution of inverse heat conduction problem with nonstationary measurements [ J]. Appl. Math. and Comp., 168 (2005) : 540 - 548.
  • 7J J Liu. Determination of temperature field for backward heat transfer[J]. Comm. Korean Math. Soc., 16(2001 ) : 385 - 397.
  • 8R Kress. Linear Integral Equations [ M ]. Springer-Verlag, Berlin, 1989.
  • 9Y L Keung,J Zou. Numerical identifications of parameters in parabolic equations[J]. Inverse Problems, 14(1998) : 83 - 100.
  • 10Thomas H R, Morgan K, Lewis R W. A fully non- linear analysis of heat and mass transfer problems in porous bodies[J]. International Journal for Numeri- cal Methods in Engineering, 1980,15 : 1381-1393.

共引文献68

同被引文献95

引证文献6

二级引证文献72

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部