scholarly journals Autonomous Underwater Vehicle Propeller Simulation using Computational Fluid Dynamic

10.5772/16297 ◽  
2011 ◽  
Author(s):  
Muhamad Husaini ◽  
Zahurin Samad ◽  
Mohd Rizal
Keyword(s):  
Computational Fluid Dynamic ◽  
Autonomous Underwater Vehicle ◽  
Fluid Dynamic ◽  
Underwater Vehicle

A practical approach to the dynamic modelling of an underwater vehicle propeller in all four quadrants of operation

2017 ◽  
Vol 233 (1) ◽  
pp. 333-344
Author(s):  
Minh Tran ◽  
Jonathan Binns ◽  
Shuhong Chai ◽  
Alexander L Forrest ◽  
Hung Nguyen
Keyword(s):  
Fourier Series ◽  
Autonomous Underwater Vehicle ◽  
Controller Design ◽  
Fluid Dynamic ◽  
Dynamic Modelling ◽  
Open Water ◽  
Underwater Vehicle ◽  
Water Characteristics ◽  
Four Quadrant ◽  
Thrust And Torque

This article presents the open water propeller characteristics and the four-quadrant propeller models as applied to a torpedo-shaped underwater vehicle. A series of experiments with a Gavia autonomous underwater vehicle propeller were conducted in the towing tank using a rotor testing apparatus. The purpose of these tests was to measure the propeller thrust and torque under varying flow conditions and then to be used as the basis of the developed propeller models. These mathematical models were constructed using two regression models, a polynomial and a Fourier series. Model coefficients were derived using the method of least squares and a comparison analysis was also conducted to test the robustness of the methodology. Results show that the Fourier series models were able to produce a reasonable and accurate approximation of thrust and torque coefficients with a small number of parameters in the examined condition of this study. The obtained four-quadrant open water characteristics of the autonomous underwater vehicle propeller model would be utilised to improve the system mathematical model for more accurate simulation and controller design, to compare the autonomous underwater vehicle performance equipped with different propulsion units, and to validate computational fluid dynamic results.

COMPUTATIONAL FLUID DYNAMIC INVESTIGATIONS ON EFFECTS OF CIRCULAR ROD INSERTS IN FAST REACTOR FUEL BUNDLE

2018 ◽  
Author(s):  
G Padmakumar ◽  
K. Velusamy ◽  
Bhamidi V. S. S. S. Prasad ◽  
P Lijukrishnan ◽  
P. Selvaraj
Keyword(s):  
Fast Reactor ◽  
Computational Fluid Dynamic ◽  
Fluid Dynamic ◽  
Reactor Fuel ◽  
Fuel Bundle ◽  
Fast Reactor Fuel

Computational Fluid Dynamic Control

1989 ◽  
Author(s):  
Tom T. Hartley ◽  
Alex DeAbreu-Garcia
Keyword(s):  
Computational Fluid Dynamic ◽  
Fluid Dynamic ◽  
Dynamic Control
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