AIRBOAT NOISE REDUCTION AND IMPELLER DESIGN FOR WATER JET PROPULSION SYSTEMS

1967 ◽  
Author(s):  
Dinshaw N. Contractor ◽  
J. Otto Scherer
Keyword(s):  
Noise Reduction ◽  
Water Jet ◽  
Propulsion Systems ◽  
Jet Propulsion

The Design of Water-Jet Propulsion Systems for Hydrofoil Craft

1965 ◽  
Vol 2 (01) ◽  
pp. 15-25
Author(s):  
Joseph Levy
Keyword(s):  
Water Jet ◽  
Propulsion System ◽  
Specific Design ◽  
Propulsion Systems ◽  
Propulsive Efficiency ◽  
Jet Propulsion ◽  
Performance Curves

This paper contains a brief description of the water-jet propulsion system as applied to hydrofoil craft, and a discussion of the salient hydrodynamic aspects of the problem of fitting the main propulsion system to the specified thrust-versus-speed requirements. The factors that affect the overall propulsive efficiency and the weight of the system are discussed at some length; procedures for optimization of performance at the design cruising speed are outlined; finally, the processes by which the performance at off-design conditions may be evaluated are discussed and illustrated with performance curves for one specific design.

scholarly journals Utilization of Open-Source OpenFOAM Code to Examine the Hydrodynamic Characteristics of a Linear Jet Propulsion System with or without Stator in Bollard Pull Condition

2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
Parviz Ghadimi ◽  
Negin Donyavizadeh ◽  
Pouria Taghikhani
Keyword(s):  
High Speed ◽  
Water Jet ◽  
Propulsion System ◽  
Hydrodynamic Performance ◽  
Hydrodynamic Characteristics ◽  
Propulsion Systems ◽  
Thrust Coefficient ◽  
Jet Propulsion ◽  
Marine Industry ◽  
Total Thrust

With the development of high-speed crafts, new propulsion systems are introduced into the marine industry. One of the new propulsion systems is linear jet which is similar to pump jet and has a rotor, a stator, and a duct. The main difference between this system and pump jet is the placement of linear jet system under the hull body and inside a tunnel. Since this system, like a water jet, is inside the tunnel, the design idea of this system is a combination of a water jet and pump jet. In this paper, hydrodynamic performance of linear jet propulsion system is numerically investigated. To this end, the OpenFOAM software is utilized and RANS steady equations are solved using a k - ε turbulent model. The linear jet geometry is produced by assembling a Kaplan rotor, stator with a NACA 5505 cross section, and a decelerating duct. The results of numerical solution in the form of thrust, torque coefficient, and efficiency are compared with available experimental data for a ducted propeller, and good agreement is displayed. Subsequently, the hydrodynamic parameters are computed in two conditions: with a stator and without a stator. By comparing the results, it is observed that the total thrust coefficient of the propulsion system with a stator at all advance ratios increases by at least 40%. It is further observed that addition of a stator also improves its efficiency.

scholarly journals Broken lines path following algorithm for a water-jet propulsion USV with disturbance uncertainties

2020 ◽  
Vol 201 ◽  
pp. 107118 ◽  
Author(s):  
Yujiao Zhao ◽  
Xin Qi ◽  
Atilla Incecik ◽  
Yong Ma ◽  
Zhixiong Li
Keyword(s):  
Path Following ◽  
Water Jet ◽  
Jet Propulsion ◽  
Disturbance Uncertainties ◽  
Path Following Algorithm

Water-Jet Propulsion for High-Speed Hydrofoil Craft

1966 ◽  
Vol 3 (2) ◽  
pp. 174-179 ◽  
Author(s):  
VIRGIL E. JOHNSON
Keyword(s):  
High Speed ◽  
Water Jet ◽  
Jet Propulsion

Research on the thrust of a high-pressure water jet propulsion system

2017 ◽  
Vol 13 (1) ◽  
pp. 1-9 ◽  
Author(s):  
Zuti Zhang ◽  
Shuping Cao ◽  
Xiaohui Luo ◽  
Weijie Shi ◽  
Yuquan Zhu
Keyword(s):  
High Pressure ◽  
Water Jet ◽  
Propulsion System ◽  
Jet Propulsion ◽  
Pressure Water ◽  
High Pressure Water Jet

scholarly journals Increase of durability of an amphibious vehicle water jet propulsion drive

2020 ◽  
Vol 709 ◽  
pp. 033036
Author(s):  
Pavel Nenashev ◽  
Sergey Abdulov ◽  
Alexander Taratorkin
Keyword(s):  
Water Jet ◽  
Jet Propulsion
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