使用交互式图形用户界面(GUI)向化学工程专业学生教授微化学系统分析的新型方法

A. Nagaraj [1],P。L。Mills [1],
[1]德克萨斯州农工大学化学和天然气工程系 - 美国德克萨斯州金斯维尔金斯维尔
出版于2015

化学物质是我们日常生活的一部分。虽然化学品是一个国家经济的重要贡献,但化学生产的合理管理对于环保运营至关重要,而无需最大化运营成本。必须开发下一代技术,这些技术可能会改变化学植物和工艺工程,从而产生安全,紧凑,灵活,环保的,节能的过程和工厂。尽管这些变化在行业中相当明显,但对于学术界来说,这些变化并不是如此。因此,学生需要接触这些新的新兴技术。微化学系统是一种关键的新兴技术,其应用程序从发现研究到商业流程等等。为了向学生介绍这项技术,得克萨斯州A&M金斯维尔(TAMUK)化学工程系开发了在微化学系统上的学习模块,称为相互联系的课程组件(ICC),作为NSF在20081年由NSF资助的本科课程改革的一部分。分子转换,多尺度分析和系统方法的组织原理。这是通过首先提供特定微处理系统的定性概述,然后专注于关键微处理酸组件的定量方面来完成的。该模块利用最新工具用于2-D和3-D成像,动画和建模,因此研究的概念和过程以可视化形式表示。 The module enables students to work through a series of exercises that start from basic principles and concepts to more complex situations where opportunities exist for both critical thinking and creativity. COMSOL Multiphysics® software was used as the numerical engine to simulate various microprocess system components involving fluid flow, heat transfer, and species transport, such as micro-scale fluidics and fluid micromixers, micro heat exchangers, and micro reactors. A library of various models was also created so that students can readily explore the effect of various model parameters on the physical system without worrying about numerical solution details. This approach allows them to focus on developing better insight and understanding of the system physics, which helps to reinforce the fundamentals that are taught in required courses on fluid mechanics, heat transfer, and mass transfer. To provide a more direct connection between the model equations and the calculated results, a Graphical User Interface (GUI) was created using COMSOL Multiphysics with MATLAB® Guide that provides either a 2-D and 3-D visualization of the model simulations where the effect of various model parameters can be explored. The primary objective of this study is to use COMSOL Application Builder to create the user interface that allows user to change selected input parameters. The application created will be then compared with the user interfaces developed using COMSOL with MATLAB® Guide to evaluate advantages and limitations of Application builder. Many microreaction technology (MRT) systems involve fluid transport through small capillary tubes and ducts. The geometry of a 2-D micro conduit is illustrated in Figure 1. Figure 2 shows the graphical user interface developed for the COMSOL model to obtain velocity profile illustrated in Figure 3.