【摘要】 从颗粒多相流计算流体力学(computational fluid dynamics, CFD)建模的视角分析了生物质热化学转化过程。首先在欧拉-拉格朗日框架内给出了颗粒相和流体相的演化方程。接着,针对常见的生物质气流床和流化床转化过程(如热解、气化等),概述了文献中特别是本课题组在CFD模拟方面的研究进展。最后,针对生物质颗粒偏大的特性,综述了热厚模型的发展现状并介绍了课题组建立的一维和多维热厚模型。更多还原

【Abstract】 From the perspective of CFD modeling of particle flows, the thermochemical conversion of biomass is analyzed. First, it presented the evolving equations for both particle and fluid phases within the Eulerian–Lagrangian framework. Then, it summarized the recent research progress available in the literature as well as in our group for biomass conversion(such as pyrolysis, gasification, etc.) in common entrained-flow and fluidizedbed reactors. Finally, it reviewed the modeling of large biomass particles, along with our recent development of one-dimensional and multi-dimensional thermally thick models.更多还原