Zhang Yongzhi, Li Jiayu, Liu Mingxin, Liu Junjie, Wang Congcong
College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China.
Berkeley Education Alliance for Research in Singapore, 138602, Singapore.
Build Environ. 2020 Oct 15;184:107224. doi: 10.1016/j.buildenv.2020.107224. Epub 2020 Aug 29.
The purpose of this study was to investigate the influence of large-scale circulation on the flow field in a cabin mockup. The velocity was measured by ultrasonic anemometers (UA). Then, this study analyzed the turbulence kinetic energy spectra of the velocity fluctuation signal. The turbulence kinetic energy spectra of the measurement points reflect the flow characteristic of the large-scale circulation in the cabin mockup. The results contribute to the understanding of the role of the thermal plume on the large-scale circulation in the cabin. The large-scale circulation's impact on air quality was also investigated, and the contaminant distribution was measured using tracer gas in the cabin. The two large-scale circulation interactions made the air flow mixing approximately uniform.
本研究的目的是调查大尺度环流对机舱模型内流场的影响。通过超声波风速仪（UA）测量速度。然后，本研究分析了速度波动信号的湍动能谱。测量点的湍动能谱反映了机舱模型内大尺度环流的流动特性。这些结果有助于理解热羽流在机舱大尺度环流中的作用。还研究了大尺度环流对空气质量的影响，并在机舱内使用示踪气体测量了污染物分布。两种大尺度环流相互作用使气流混合大致均匀。
