Modeling and simulation of droplet evaporation in different gas environments under supercritical conditions (B03)

超临界条件下不同气体环境中液滴蒸发的建模与仿真（B03）

• 批准号: 164930455
• 金额: --
• 依托单位: Fachgebiet Energie- und Kraftwerkstechnik
• 依托单位国家: 德国
• 项目类别: CRC/Transregios
• 财政年份: 2010
• 资助国家: 德国
• 起止时间: 2009-12-31 至 2020-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/164930455?language=en
• 关键词: Modeling; simulation; droplet; evaporation; different

Within an appropriate LES methodology, three approaches will be addressed under consideration of a multi-regime evaporation model. First, the multi-fluid mixing model for multi-component mixtures will be consistently formulated in the frame of the Euler-Euler method suitable for trans- and supercritical sprays. Second, the Euler-Lagrange approach will be extended to integrate the arising effects of vanishing surface tension in such sprays. Finally, since irreversible processes are involved, the essential role of the entropy production in the process and modelling analysis will be considered. The approaches will be assessed with experimental data from TP-B2 and TP-B4.

在一个适当的LES方法，三种方法将在考虑多制度蒸发模型。首先，多组分混合物的多流体混合模型将在适用于反式和超临界喷雾的欧拉-欧拉方法的框架中一致地制定。第二，欧拉-拉格朗日方法将被扩展到集成消失的表面张力在这样的喷雾所产生的影响。最后，由于涉及不可逆过程，熵产生的过程和建模分析中的重要作用将被考虑。将使用TP-B2和TP-B4的实验数据对这些方法进行评估。