A CFD Study of the Hydrodynamic Characteristics of an Autonomous Underwater Helicopter

被引：1

作者：

Vu, Hoang-Phuong ^{[1
,2
]}

Le, Thanh-Long ^{[1
,2
]}

Phung, Tran-Hanh ^{[1
,2
]}

Nguyen, Thanh-Truong ^{[2
,3
]}

Vuong, Thi-Hong-Nhi ^{[2
,4
]}

Nguyen, Tran-Phu ^{[5
]}

机构：

[1] Ho Chi Minh City Univ Technol HCMUT, Fac Mech Engn, 268 Ly Thuong Kiet St,Dist 10, Ho Chi Minh City 700000, Vietnam

[2] Vietnam Natl Univ Ho Chi Minh City, Linh Trung Ward, Ho Chi Minh City 700000, Vietnam

[3] Ho Chi Minh City Univ Technol HCMUT, Ind Maintenance Training Ctr, 268 Ly Thuong Kiet St, Dist 10, Ho Chi Minh City 700000, Vietnam

[4] Ho Chi Minh City Univ Technol HCMUT, Fac Transportat Engn, 268 Ly Thuong Kiet St, Dist 10, Ho Chi Minh City 700000, Vietnam

[5] Ho Chi Minh City Univ Technol & Educ HCMUTE, Fac Vehicle & Energy Engn, Ho Chi Minh City 70000, Vietnam

来源：

APPLIED SCIENCES-BASEL | 2024年 / 14卷 / 21期

关键词：

autonomous underwater vehicle; autonomous underwater helicopter; computational fluid dynamics; numerical simulation; hydrodynamic characteristics; VEHICLE; SURFACE;

D O I：

10.3390/app14219733

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A new autonomous underwater vehicle (AUV) has high maneuverability near the bottom and a direction turnaround ability, called the autonomous underwater helicopter (AUH). This paper numerically investigates the hydrodynamic performance of the AUH. A Reynolds-Averaged Navier-Stokes (RANS) equation, a computational fluid dynamics (CFD) technique, is applied to analyze the AUH's behavior. Investigations of the AUH's hydrodynamic characteristics become more obvious with a service speed in the range of 0.4-1.2 m/s. For the same velocity condition, the resistance of the AUH increases, and the irregular eddy at the rear of the AUH expands with changes in the angles of attack and the length/height ratio. Essential design characteristics including pressure, velocity distribution, and velocity streamlines are shown and analyzed. These insights can be used as a guideline to reduce drag force and optimize the AUH profile for future designs. It has great potential for improving the AUH's control algorithms.

引用

页数：16