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首页> 外文期刊>Journal of Hydroinformatics >Automating CFD for non-experts
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Automating CFD for non-experts

机译：非专家的差价合约自动化

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The focus of the paper is on demonstrating how it is possible to automate complex CFD simulations using scripting language around and within the structure of the CFD command files. To illustrate this, the concept of an atmospheric pollution case is used and, more specifically, that of a water treatment plant. The code that is used is CFX-5 with PERL as a scripting 'language'. The simulation of the factory atmospheric environment and its fluctuating conditions are fully automated. The simulation is based on a pre-defined generic CFD model, for which initial conditions, boundary conditions and source terms of atmospheric pollutant release are written automatically by the scripts using data recorded by measuring devices and stored on computers every half an hour as the simulation runs, when the correct amount of time has elapsed, the simulation pauses and the script updates the set-up using the newly recorded data. It then proceeds further, restarting from the appropriate result files. At each pause, a HTML report is also produced, which contains pictures of the area and summary tables. If a suitable criterion is defined in the post-treatment algorithm, such as a critical concentration for example, an alarm bell can be started, so that the technician knows the simulation has found a potential problem within the large domain that is thus monitored. The implications of this work are numerous. Firstly, non-CFD experts can run and use results from a CFD simulation without having to implement the models, run the simulation or fully understand the intricacy of the physics and mathematics that it contains. Going further, it is even possible to parametrize the generic model set-up, e.g. the domain dimensions or the location of emission sources, to make the case more flexible. Running the application remotely is also possible, using a web browser to submit the necessary input to the CFD code. Secondly, a very wide area can be monitored numerically, which would not be commercially viable with physical devices and field monitoring campaigns. Thirdly, such a simulation can be used to learn the general behaviour of, and the potential problems associated with, the region of interest and eventually set up a response plan to any given situation known to cause discomfort or form a health hazard to the neighbourhood. This feedback can be used to improve the operation of the plant and its safety, but also to enhance the model set-up for future simulations.
机译：本文的重点是演示如何使用CFD命令文件周围和内部的脚本语言自动执行复杂的CFD模拟。为了说明这一点，使用了大气污染案例的概念，更具体地说，是水处理厂的概念。使用的代码是带有PERL作为脚本“语言”的CFX-5。工厂大气环境及其波动条件的模拟是完全自动化的。该模拟基于预定义的通用CFD模型，该脚本使用测量设备记录的数据并每半小时将其存储在计算机中的脚本通过脚本自动编写初始条件，边界条件和大气污染物释放的源条件。运行时，经过正确的时间量后，模拟会暂停，脚本会使用新记录的数据更新设置。然后，它将继续进行，从适当的结果文件重新启动。每次暂停时，还会生成一个HTML报告，其中包含区域图片和摘要表。如果在后处理算法中定义了合适的标准（例如临界浓度），则可以启动警铃，以便技术人员知道模拟已发现了由此监控的大范围内的潜在问题。这项工作的含义很多。首先，非CFD专家可以运行和使用CFD模拟的结果，而无需执行模型，运行模拟或完全了解其包含的物理和数学的复杂性。更进一步，甚至有可能对通用模型设置进行参数化，例如范围尺寸或排放源的位置，以使情况更加灵活。也可以使用Web浏览器远程运行该应用程序，以将必要的输入提交给CFD代码。其次，可以对很大的区域进行数字监视，这在物理设备和现场监视活动中在商业上是不可行的。第三，这种模拟可用于了解感兴趣区域的一般行为以及与该区域相关的潜在问题，并最终针对已知的任何引起邻里不适或对健康造成危害的给定情况制定响应计划。该反馈可用于改善工厂的运行及其安全性，还可以增强模型设置以用于将来的仿真。

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