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Erschienen in:
2014 | OriginalPaper | Buchkapitel
35. Experimental Measurement of Airflow Turbulence Characteristics in a Full-Size Aircraft Cabin
verfasst von : Chen Shen, Junjie Liu, Wei Wang, Nan Jiang
Erschienen in: Proceedings of the 8th International Symposium on Heating, Ventilation and Air Conditioning
Verlag: Springer Berlin Heidelberg
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Abstract
This study applied experimental methods to gather airflow turbulence information by different anemometers in a full-size MD-82 aircraft cabin, including turbulence energy spectrum densities (TESD) at the sidewall diffusers and time-average flow fields. The results indicated that the large range of TESD of airflow must be measured by high-frequency equipments, such as hot-wire anemometers (HWA), at 50 kHz, and for flow fields, three-dimensional ultrasonic anemometers (UA) were needed to obtain accurate velocity magnitudes and turbulence intensities (TI) at the cross section of one row in the cabin. This investigation verified that TI had a reciprocal relationship with mean velocity and calculated the regression equations.