期刊
DRYING TECHNOLOGY
卷 21, 期 2, 页码 197-215出版社
TAYLOR & FRANCIS INC
DOI: 10.1081/DRT-120017743
关键词
modelling; spray drying; computational fluid dynamics; air flow patterns
It is becoming increasingly clear that the flow patterns in spray dryers are inherently transient and three-dimensional and that these flow patterns are closely linked to the key problem of wall deposition of particles in this equipment. We are also developing the confidence that current Computational Fluid Dynamics simulations, with standard approaches to modelling turbulence, can predict the frequencies of the transient flows and the three-dimensional nature of the flow patterns with adequate accuracy for both laboratory and industrial conditions. This situation demonstrates the potential for incorporating other important physical processes, such as those involved in wall deposition, into such models, leading to simulations that predict all the key physical processes quantitatively and accurately. Further research into the adhesion and cohesion of particles due to stickiness is important for addressing the challenges of predicting wall adhesion and agglomeration, as is the need to measure thermal degradation under conditions that reflect those inside the dryers. It will then be possible to design new dryer systems from first principles for specific product engineering outcomes, rather than relying on trial and error as in the past.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据