多发螺旋桨飞机结冰气象探测器安装位置研究

doi:10.7527/S1000-6893.2023.29295

Abstract

Abstract:

To meet the needs of meteorological detection in the natural icing flight test of multi-engine propeller aircraft， the installation location of the Cloud Combination Probe （CCP） was studied by numerical method. According to the requirements of airworthiness regulations， the design principles for the installation location of CCP are proposed. Air flow field is calculated by using the virtual disk method， and the water droplet field is calculated on this basis to obtain the spatial distribution of liquid water content. Based on the large amphibious aircraft， the feasible installation position of CCP is analyzed， and the basic rules of fuselage and wing installation scheme are obtained. The results show that the median volume diameter and angle of attack have a great influence on the installation position and altitude， and the selection of operating conditions should have a certain coverage to the natural icing conditions and flight envelope. The installation scheme on the back of the fuselage is obviously affected by the droplet shadow area， and the required installation height is higher， which increases with the installation position moving backward. The installation scheme of the lower wing surface should avoid the propeller slipstream influence area. The structural mounting bracket should be arranged near the front beam， and the installation height is generally lower than that of the back of the fuselage. The above principles and parameter laws can provide reference for similar multi-engine propeller aircraft.

Key words: cloud combination probe, multi-engine propeller aircraft, propeller slipstream, installation position, icing, natural icing flight test

CLC Number:

V211.4

Guanmian LIU, Fan ZHANG, Zhihang CHENG, Kangzhi YANG, Hejun QIN. Installation location of cloud combination probe for multi⁃engine propeller aircraft[J]. Acta Aeronautica et Astronautica Sinica, 2023, 44(S2): 729295-729295.

Figures/Tables 18

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工况	速度/（m·s^-1）	高度/km	迎角/（°）	MVD/μm
1	100	4	4	40
2	100	4	4	30
3	100	4	4	20
4	100	4	0	40
5	100	4	8	40

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Installation location of cloud combination probe for multi⁃engine propeller aircraft

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