1. 河南工业大学电气工程学院
2. 河南省计量测试科学研究院
纸质出版:2023
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陆文佳, 吴才章, 李博. 基于CFD的气敏特性测试室气体均匀性仿真分析[J]. 传感器与微系统, 2023,(8):30-34.
陆文佳, 吴才章, 李博. 基于CFD的气敏特性测试室气体均匀性仿真分析[J]. 传感器与微系统, 2023,(8):30-34. DOI: 10.13873/J.1000-9787(2023)08-0030-05.
开发高性能的气体传感器,必须确保合格的传感器响应测试。而大多数发生在传感器表面的化学/物理过程都受到测试室内气体分布均匀性的影响。通过计算流体动力学(CFD)仿真,设计了一种气敏特性多通道测试室。首先,对测试室结构建立三维模型并采用滑移网格处理;然后,采用kω-SST和SAS湍流模型计算不可压缩条件下的Navier-Stokes方程;最后,经后处理,获得室内空气龄、流速场均匀性综合信息。结果表明:当孔径比β=0.67时,传感器表面流量覆盖率为90.41%
流速阶梯性变化对传感器稳定性影响小于4.06%
相较于其他的孔径比,对响应时间的稳定性提升了230%
为实际的测试室开发提供了理论依据。
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基于Fluent的气敏特性测试室设计与流场分析[J]. 马宏伟;徐武德;杨旭辉;陈小通;祁昌禹;韩根亮.自动化与仪器仪表,2018(11)
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