Results 11 to 20 of about 271 (131)

Numerical simulation study on hydrodynamic time-delay characteristics of supercavitating vehicle

open access: yesXibei Gongye Daxue Xuebao, 2023
Due to the existence of the time-delay effect of the supercavity, the fluid dynamics of the supercavitating vehicle in the maneuvering will exhibit extremely strong unsteady characteristics, which will bring great challenges to the hydrodynamic ...
LIU Xiyan   +3 more
doaj   +2 more sources

Numerical analysis of cavitation and impact load characteristics of supercavitating vehicle entering water at high speed

open access: yesXibei Gongye Daxue Xuebao, 2022
In order to obtain the influence of water entry angle and speed on the cavitation and impact load characteristics of supercavitating vehicle, a high-speed water entry numerical model of supercavitating vehicle based on VOF model is established, and the ...
YU Yilan, SHI Yao, PAN Guang, CHE Peiqi
doaj   +3 more sources

Experimental Study on Influence of Ventilation on Trajectory Characteristics of Free Motion of Supercavitating Vehicle

open access: yesXibei Gongye Daxue Xuebao, 2019
In order to study the trajectory characteristics of supercavitating vehicle in free motion, a series of experiments were carried out on an unpowered vehicle under ventilation and non-ventilation conditions respectively.

doaj   +3 more sources

Depth and Attitude Coordinated Control for Supercavitating Vehicle Avoiding Planing Force

open access: yesMachines, 2022
Supercavitating vehicles have particular high speeds. This unique advantage is obtained by the cavity separation from water to eliminate most drag. However, this may lead to the tail-slap phenomenon and the planing force. In addition, there are large and
Yu Zhou   +3 more
doaj   +2 more sources

Cavitator Design for Straight-Running Supercavitating Torpedoes

open access: yesApplied Sciences, 2021
A practical cavitator design method for straight-running-type supercavitating torpedoes was developed in this paper. Design requirements were first drawn in terms of torpedo performance characteristics, such as maximum range and motion stability.
Min-Jae Kim   +4 more
doaj   +2 more sources

Research on Encounter Probability Between a Supercavitating Vehicle and a Target Based on Path Planning

open access: yesIEEE Access
Supercavitating vehicles have received significant attention in military applications due to their high underwater speed. This paper aims to establish analytic models of the encounter probability between a supercavitating vehicle and its target in two ...
Yang Guang   +4 more
doaj   +2 more sources

Research on Lateral Maneuverability of a Supercavitating Vehicle Based on RBFNN Adaptive Sliding Mode Control with Rolling Restriction and Planing Force Avoidance

open access: yesMachines, 2023
This paper addresses the lateral motion control of a supercavitating vehicle and studies its ability to maneuver. According to the unique hydrodynamic characteristics of the supercavitating vehicle, highly coupled nonlinear 6-degree-of-freedom (DOF ...
Guang Yang, Faxing Lu, Junfei Xu
doaj   +2 more sources

Numerical simulation on hydrodynamics loads during tail rudder deployment procedure of supercavitating vehicle

open access: yesXibei Gongye Daxue Xuebao
In the state of navigating covered with liquid fluid, the hydrodynamics loads of the supercavitating vehicle during the deployment process of the tail rudder have an important impact on the stability analysis of the vehicle and the performance design of ...
WANG Zhong   +4 more
doaj   +2 more sources

Numerical simulation of ventilated supercavitating flow structure. [PDF]

open access: yesSci Rep
This paper presents a numerical investigation into the effects of various parameters on the supercavitating flow field structure. Using the Delayed Detached Eddy Simulation (DES) method, the supercavitation flow was analyzed in detail, and the ...
Zhang J, Chen W, Li P, Liu G, Han W.
europepmc   +2 more sources

Cavitation motion characteristics of near-wall supercavitating vehicle [PDF]

open access: yesKongqi donglixue xuebao
Supercavitation technology is of great significance in reducing drag and enhancing the range of supercavitating vehicles. When a vehicle navigates in proximity to the underwater terrain, the rigid wall exerts a substantial influence on the cavitation ...
Yuting HU   +6 more
doaj   +2 more sources

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