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OALib Journal期刊
ISSN: 2333-9721
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cfb提升管内气固两相流动反应特性的大涡模拟
, PP. 55-58
Keywords: cfb,提升管,气固两相流,大涡模拟,颗粒动理学,气体组分,温度场
Abstract:
基于梯度模式的气相亚格子模型以及颗粒动理学理论，考虑大涡模拟中过滤尺度的影响，对气固相间曳力系数进行修正，建立了气固两相流大涡模拟模型，并对提升管内气固两相流动特性进行了数值模拟，合理地预测出了提升管内气固两相环核流动结构，模拟结果与实测结果相吻合。同时，对提升管内的co2捕捉过程进行了模拟，得到了气体组分分布以及温度场，可为循环流化床反应器的优化设计提供依据。
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