A Novel Approach to Turbulence Stimulation for Ship-Model Testing

2010 ◽  
Author(s):  
Jason C. Murphy
2016 ◽  
Author(s):  
Richard A. Royce
Keyword(s):  

The need for data relating to fluid forces and moments has led to general acceptance of oscillatory testing of ship models. Although the technique is well established, certain problems still attend the interpretation of results. The nature of the difficulties is explained and they are elucidated by making allowance for time history effects, using functional analysis. Allowance for these effects in this way also establishes that certain results which have hitherto been assumed to require nonlinear representations are in fact capable of very accurate linear specification.


2018 ◽  
Vol 14 (15) ◽  
pp. 535
Author(s):  
Firmin J. Oliveira

The nature of the principle of equivalence is explored. The light ray travel path in an accelerated reference frame, a rocket ship, is described and the rocket ship model is used to derive the deflection of light by a massive body. By accounting for the effect of the velocity of the accelerated observer relative to an inertial frame, the additional deflection angle is obtained due to the aberration of the light beam. This model is applied to the deflection of light by a central gravitational field, giving the total deflection angle in agreement with the standard result. Also, a novel approach is given by considering the deflection of light by a massive body to obtain the precession of the perihelion of a planet.


1956 ◽  
Vol 3 (18) ◽  
pp. 109-120
Author(s):  
Aldo Andreoni
Keyword(s):  

2006 ◽  
Author(s):  
Ciara Chaffee ◽  
Timothy Lester ◽  
Justin Sobol
Keyword(s):  

1972 ◽  
Vol 14 (7) ◽  
pp. 62-69
Author(s):  
R. K. Burcher

This paper is an introduction to model test methods as a means of establishing the manoeuvring characteristics of ships. Consideration is first given to the reasons for the adoption of model techniques and the information to be obtained. The model techniques are considered under three sections: free models, constrained models and mathematical modelling. The standard tests employed are briefly described and the information that can be obtained, together with any problems. There is finally a short discussion of the problems of ship/model correlation.


2018 ◽  
Vol 147 ◽  
pp. 447-457 ◽  
Author(s):  
Zhi-Ming Yuan ◽  
Xinshu Zhang ◽  
Chun-Yan Ji ◽  
Laibing Jia ◽  
Huaming Wang ◽  
...  

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