Influence on Stern Flaps in Resistance Performance of a Caterpillar Track Amphibious Vehicle

In order to reduce the resistance and increasing speed for a caterpillar track amphibious vehicle (CTAV), the stern flaps were applied and the influence was researched. Numerical simulations performed by STAR-CCM+ and model towing test reveal that stern flaps have greatly reduced the resi...

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Autores principales:	Chengliang Sun, Xiaojun Xu, Wenhao Wang, Haijun Xu
Formato:	article
Lenguaje:	EN
Publicado:	IEEE 2020
Materias:	Caterpillar track amphibious vehicle CFD resistance performance running attitude STAR-CCM+ Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/1e3b1659bb60414cbfbad412398f3ee9
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id	oai:doaj.org-article:1e3b1659bb60414cbfbad412398f3ee9
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spelling	oai:doaj.org-article:1e3b1659bb60414cbfbad412398f3ee92021-11-19T00:04:09ZInfluence on Stern Flaps in Resistance Performance of a Caterpillar Track Amphibious Vehicle2169-353610.1109/ACCESS.2020.2993372https://doaj.org/article/1e3b1659bb60414cbfbad412398f3ee92020-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9090129/https://doaj.org/toc/2169-3536In order to reduce the resistance and increasing speed for a caterpillar track amphibious vehicle (CTAV), the stern flaps were applied and the influence was researched. Numerical simulations performed by STAR-CCM+ and model towing test reveal that stern flaps have greatly reduced the resistance, trim, and sinkage of the CTAV when the length Froude number is between 0.63 and 1.05. The length and flap angle were optimized by numerical simulation. In addition, the residual resistance plays a dominant role in resistance reduction, which contributes to more than 90% of the total resistance reduction. Installing stern flaps increase the vehicle waterline by 7% and enhance the virtual-length effect. Furthermore, the running attitude becomes steadier, thereby decreasing the trim and sinkage. Therefore the resistance performance of the CTAV can be enhanced by installing stern flaps with a proper length at an optimal flap angle.Chengliang SunXiaojun XuWenhao WangHaijun XuIEEEarticleCaterpillar track amphibious vehicleCFDresistance performancerunning attitudeSTAR-CCM+Electrical engineering. Electronics. Nuclear engineeringTK1-9971ENIEEE Access, Vol 8, Pp 123828-123840 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Caterpillar track amphibious vehicle CFD resistance performance running attitude STAR-CCM+ Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	Caterpillar track amphibious vehicle CFD resistance performance running attitude STAR-CCM+ Electrical engineering. Electronics. Nuclear engineering TK1-9971 Chengliang Sun Xiaojun Xu Wenhao Wang Haijun Xu Influence on Stern Flaps in Resistance Performance of a Caterpillar Track Amphibious Vehicle
description	In order to reduce the resistance and increasing speed for a caterpillar track amphibious vehicle (CTAV), the stern flaps were applied and the influence was researched. Numerical simulations performed by STAR-CCM+ and model towing test reveal that stern flaps have greatly reduced the resistance, trim, and sinkage of the CTAV when the length Froude number is between 0.63 and 1.05. The length and flap angle were optimized by numerical simulation. In addition, the residual resistance plays a dominant role in resistance reduction, which contributes to more than 90% of the total resistance reduction. Installing stern flaps increase the vehicle waterline by 7% and enhance the virtual-length effect. Furthermore, the running attitude becomes steadier, thereby decreasing the trim and sinkage. Therefore the resistance performance of the CTAV can be enhanced by installing stern flaps with a proper length at an optimal flap angle.
format	article
author	Chengliang Sun Xiaojun Xu Wenhao Wang Haijun Xu
author_facet	Chengliang Sun Xiaojun Xu Wenhao Wang Haijun Xu
author_sort	Chengliang Sun
title	Influence on Stern Flaps in Resistance Performance of a Caterpillar Track Amphibious Vehicle
title_short	Influence on Stern Flaps in Resistance Performance of a Caterpillar Track Amphibious Vehicle
title_full	Influence on Stern Flaps in Resistance Performance of a Caterpillar Track Amphibious Vehicle
title_fullStr	Influence on Stern Flaps in Resistance Performance of a Caterpillar Track Amphibious Vehicle
title_full_unstemmed	Influence on Stern Flaps in Resistance Performance of a Caterpillar Track Amphibious Vehicle
title_sort	influence on stern flaps in resistance performance of a caterpillar track amphibious vehicle
publisher	IEEE
publishDate	2020
url	https://doaj.org/article/1e3b1659bb60414cbfbad412398f3ee9
work_keys_str_mv	AT chengliangsun influenceonsternflapsinresistanceperformanceofacaterpillartrackamphibiousvehicle AT xiaojunxu influenceonsternflapsinresistanceperformanceofacaterpillartrackamphibiousvehicle AT wenhaowang influenceonsternflapsinresistanceperformanceofacaterpillartrackamphibiousvehicle AT haijunxu influenceonsternflapsinresistanceperformanceofacaterpillartrackamphibiousvehicle
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Influence on Stern Flaps in Resistance Performance of a Caterpillar Track Amphibious Vehicle

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