TY - GEN
T1 - Experimental Study on Cavity Characteristics of Low Speed Water Entry of Cylinder Based on High-Speed Imaging Technology
AU - Wang, Guanhua
AU - Pan, Guang
AU - Shi, Yao
AU - Huang, Qiaogao
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2019/1/7
Y1 - 2019/1/7
N2 - During the launching of the underwater vehicle especially in air-launching, the water entry problem is complicated. Factors such as nose shape, water entry velocity, water entry angle, surface property and specific gravity will have a profound effect on the cavity shape, which will affect the initial trajectory and attitude of underwater vehicle. A launch platform with variable launch velocity and multiple launch angle is designed and constructed independently. Launch platform, water tank, high-speed camera, floodlights and synchronizing device together constitute the experiment platform. Five kinds of nose shapes with different hemispherical angles are used. A series of experiments are carried out to investigate how nose shape, water entry velocity and water entry angle will affect the cavity characteristics. The conclusions are performed and the three different cavities (flow separation cavity, weak flow separation cavity, cavity behind the moving cylinder) formed during water entry process are observed and analyzed originally.
AB - During the launching of the underwater vehicle especially in air-launching, the water entry problem is complicated. Factors such as nose shape, water entry velocity, water entry angle, surface property and specific gravity will have a profound effect on the cavity shape, which will affect the initial trajectory and attitude of underwater vehicle. A launch platform with variable launch velocity and multiple launch angle is designed and constructed independently. Launch platform, water tank, high-speed camera, floodlights and synchronizing device together constitute the experiment platform. Five kinds of nose shapes with different hemispherical angles are used. A series of experiments are carried out to investigate how nose shape, water entry velocity and water entry angle will affect the cavity characteristics. The conclusions are performed and the three different cavities (flow separation cavity, weak flow separation cavity, cavity behind the moving cylinder) formed during water entry process are observed and analyzed originally.
KW - Cavity characteristics
KW - Cylinder
KW - Experimental study
KW - Low speed water entry
KW - Underwater vehicle
KW - Weak flow separation
UR - http://www.scopus.com/inward/record.url?scp=85061774103&partnerID=8YFLogxK
U2 - 10.1109/OCEANS.2018.8604890
DO - 10.1109/OCEANS.2018.8604890
M3 - 会议稿件
AN - SCOPUS:85061774103
T3 - OCEANS 2018 MTS/IEEE Charleston, OCEAN 2018
BT - OCEANS 2018 MTS/IEEE Charleston, OCEAN 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - OCEANS 2018 MTS/IEEE Charleston, OCEANS 2018
Y2 - 22 October 2018 through 25 October 2018
ER -
