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课堂气溶分散模型:对低成本流量模拟工具的实验性评估
1United States Military Academy, Department of Geography and Environmental Engineering, West Point NY 10996, USA. philip.dacunto@westpoint.edu.
Environmental science. Processes & impacts
|November 15, 2023
概括
一个低成本的流量模拟工具有效地模拟室内气溶分散,提供与先进软件相比的有用结果. 这使得它在计算流体动力学 (CFD) 的教育和入门研究应用中非常有价值.
科学领域:
- 环境工程 环境工程
- 建筑科学 建筑科学
- 流体动力学 流体动力学
背景情况:
- 室内空气质量对健康和生产力至关重要.
- 对气溶分散的准确建模对于了解污染物传播至关重要.
- 计算流体动力学 (CFD) 提供了强大的模拟功能,但先进的工具可能昂贵,需要广泛的培训.
研究的目的:
- 为了评估室内气溶分散模型的低成本流量模拟工具的有效性.
- 将低成本工具的模拟输出与物理实验和先进的CFD软件进行比较.
- 为教育和入门研究目的确定可访问的模拟工具的实用性.
主要方法:
- 在两个教室中,使用二氧化碳标记气进行了五次气溶散射试验.
- 在13个边缘位置测量了平稳状态度.
- 模拟使用SolidWorks流动模拟 (低成本) 和STAR-CCM+ (高级) 进行,结果与使用四个性能指标 (FB,NMSE,FAC2,NAD) 的实验数据进行比较.
主要成果:
- 先进的软件 (STAR-CCM+) 在大多数情况下 (15/20) 显示出优异的性能.
- 低成本工具 (SolidWorks流动模拟) 的表现相似,在18/20个案例中满足了接受标准.
- 低成本工具展示了有用的预测能力,在3/20个案例中表现优于先进工具.
结论:
- 低成本的流量模拟工具为室内气溶分散应用提供了有价值的结果.
- 这些工具是学生和研究人员新的CFD建模的成本效益和可访问的选择.
- 这些工具的实用性证明了它们的使用,特别是在教育环境和初步研究探索中.
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