Study on Aerosol Transport and Deposition Model of Ocean Air Flow

doi:10.3901/JME.2022.08.285

Abstract

Abstract: In order to simulate the dynamic accumulation process of aerosol on the structural surface of aircraft flying over the ocean and accurately obtain the basic data causing aircraft structural corrosion, according to the characteristics of air flow over the ocean, the existing form, size, size spectrum, concentration and the generation function of aerosol in offshore and far sea are analyzed. The influence of the wind speed and transmission distance and other factors on the amount of aerosol deposition in ocean current are obtained. On the basis of considering the variation of settling velocity with time in the process of transport, a double exponential model of aerosol transport and deposition is established, and the application scope, sensitivity and availability of the model are analyzed and verified. The results show that, the model which is based on the variation of settlement velocity and distance, comprehensively considers the concentration variation of horizontal and vertical dimensions, and is very sensitive to the variation of parameters such as initial settlement, wind speed, initial settlement velocity and settlement velocity reduction coefficient. The correlation coefficient between the calculated results and the measured results is close to 0.99. It can be seen that the model can better describe the transport and deposition of marine aerosols in the marine atmospheric environment, which lays a foundation for further describing the accumulation process of aerosols on the fuselage surface during aircraft flight.

Key words: ocean air flow, aerosol, transport, deposition, model

CLC Number:

TG171

BIAN Guixue, WANG Andong, ZHANG Yong, WANG Xi, FAN Weijie, CHEN Yueliang. Study on Aerosol Transport and Deposition Model of Ocean Air Flow[J]. Journal of Mechanical Engineering, 2022, 58(8): 285-292.

References

[1] LEYGRAF C,WALLINDER I O,TIDBLAD J,et al. Atmospheric corrosion[M]. New York:John Wiley&Sons,2016.
[2] 罗浩,陈跃良,徐丽,等.地理腐蚀因子的建立及其应用[J].装备环境工程,2011,8(4):90-93. LUO Hao,CHEN Yueliang,XU Li,et al. Establishment of geographic corrosivity index and its application[J]. Equipment Environment Engineering,2011,8(4):90-93.
[3] DUBOVIK O,SMIRNOV A,HOLBEN B N,et al. Accuracy assessments of aerosol optical properties retrieved from Aerosol Robotic Network (AERONET) sun and sky radiance measurements[J]. Journal of Geophysical Research Atmospheres,2000,105(D8):9791-9806.
[4] GERRIT L,NEELE F P,MARTIN H,et al. Production of sea spray aerosol in the surf zone[J]. Journal of Geophysical Research Atmospheres,2000,105(D24):29397-29409.
[5] 贺欣,周茹,姚媛,等.基于AERONET的中国地区典型站点气溶胶类型变化特征[J].中国环境科学,2020,40(2):23-34. HE Xin,ZHOU Ru,YAO Yuan,et al. Variation characteristics of aerosol types at typical stations in China based on AERONET[J]. Chinese Environmental Science,2020,40(2):23-34.
[6] XIN J,WANG Y,LI Z,et al. Aerosol optical depth (AOD) and angstrom exponent of aerosols observed by the Chinese Sun Hazemeter Network from August 2004 to September 2005[J]. Journal of Geophysical Research,2007,112(D5):1703-1711.
[7] 朱惠斌,黄燕萍.海洋大气环境中钢铁表面的防腐蚀[J].全面腐蚀控制,2003,17(4):26-29. ZHU Huibin,HUANG Yanping. The anticorrosion to steel structure in marine atmosphere[J]. Total Corrosion Control,2003,17(4):26-29.
[8] 王振尧,于国才,韩薇.我国自然环境大气腐蚀性调查[J].腐蚀与防护,2003,24(8):323-326. WANG Zhenyao,YU Guocai,HAN Wei. A survey of the atmospheric corrosiveness of natural environments in China[J]. Corrosion&Protection,2003,24(8):323-326.
[9] FERREIRA M,MELENDRES C A. Electrochemical and optical techniques for the study and monitoring of metallic corrosion[M]. Netherlands:Springer,1991.
[10] MCKAY W A,GARLAND J A,LIVESLEY D,et al. The characteristics of the shore-line sea spray aerosol and the landward transfer of radionuclides discharged to coastal sea water[J]. Atmospheric Environment,1994,28(20):3299-3309.
[11] 郑小慎,张亚男,刘雨华.基于GOCI数据黄海气溶胶光学厚度反演方法研究[J].海洋通报,2020,228(1):96-102. ZHENG Xiaoshen,ZHANG Yanan,LIU Yuhua. Study on optical thickness inversion method of Yellow Sea aerosol based on GOCI data[J]. Marine Bulletin,2020,228(1):96-102.
[12] REID J S,JONSSON H H,SMITH M H,et al. Evolution of the vertical profile and flux of large sea-salt particles in a coastal zone[J]. Journal of Geophysical Research Atmospheres,2001,106(D11):12039-12053.
[13] GONG S L,BARRIE L A,BLANCHET J P. Modeling sea-salt aerosols in the atmosphere:1. Model development[J]. Journal of Geophysical Research Atmospheres,1997,102(D3):3805-3818.
[14] ANGUELOVA M D. Whitecaps,sea-salt aerosols,and climate[D]. Newark:University of Delaware,2002.
[15] FELIU S,MORCILLO M,CHICO B. Effect of distance from sea on atmospheric corrosion rate[J]. Corrosion,1999,55(9):883-891.
[16] 毛节泰,张军华,王美华.中国大气气溶胶研究综述[J].气象学报,2002(5):625-634. MAO Jietai,ZHANG Junhua,WANG Meihua. Review of atmospheric aerosol research in China[J]. Journal of Meteorology,2002(5):625-634.
[17] SCHULZ M,LEEUW G D,BALKANSKI Y. Sea-salt aerosol source functions and emissions[M]. Netherlands:Springer,2004.
[18] 胡吉连.舟山渔场近岸悬浮体沉降速度研究[J].农村经济与科技,2020,479(3):80-82,119. HU Jilian. Study on settling velocity of nearshore suspension in Zhoushan fishing ground[J]. Rural Economy and Science and Technology,2020,479(3):80-82,119.
[19] 石广玉,王标,张华,等.大气气溶胶的辐射与气候效应[J].大气科学,2008,32(4):826-840. SHI Guangyu,WANG Biao,ZHANG Hua,et al. Radiation and climate effects of atmospheric aerosols[J]. Atmospheric Science,2008,32(4):826-840.
[20] 张岩,李婧.基于卫星气溶胶光学厚度反演地面能见度算法的研究[J].北京大学学报,2020(2):231-241. ZHANG Yan,LI Jing. Research on ground visibility retrieval algorithm based on satellite aerosol optical thickness[J]. Journal of Peking University,2020(2):231-241.
[21] 延昊,矫梅燕,毕宝贵,等.国内外气溶胶观测网络发展进展及相关科学计划[J].气象科学,2006,26(1):110-117. YAN Hao,JIAO Meiyan,BI Baogui,et al. Advances in aerosol observation network and corresponding science plan[J]. Scientia Meteorologica Sinica,2006,26(1):110-117.
[22] 周秀骥,陶善昌,姚克亚.高等大气物理学[M].北京:气象出版社,1991. ZHOU Xiuji,TAO Shanchang,YAO Keya. Advanced atmospheric physics[M]. Beijing:Meteorology Press,1991.
[23] 王珉,胡敏.陆地与海洋气溶胶的相互输送及其对彼此环境的影响[J].海洋环境科学,2000(5):76-79. WANG Min,HU Min. Mutual transport of land and ocean aerosols and their impact on each other's environment[J]. Marine Environmental Science,2000(5):76-79.