Fourier averaging: a phase-averaging method for periodic flow

2000 ◽  
Vol 28 (3) ◽  
pp. 217-224 ◽  
Author(s):  
R. Sonnenberger ◽  
K. Graichen ◽  
P. Erk
2020 ◽  
Vol 10 (18) ◽  
pp. 6148
Author(s):  
Kostia Roncin ◽  
Morgan Behrel ◽  
Paul Iachkine ◽  
Jean-Baptiste Leroux

This paper presents sea trials on a 6-m boat specifically designed for kite propulsion. The kite control was automatic or manual, dynamic or static, depending on the point of sailing. The measurement system recorded boat motion and load generated by the kite. A particular attention was paid to wind measurement with several fixed and mobile locations directly on the kiteboat or in the vicinity. A high resolution weather modelling showed that a classical power law, describing the wind gradient, was not satisfactory to get the wind at kite location. 5-min measurement phases were systematically recorded. In the end, 101 runs were carried out. Data were processed with the phase-averaging method in order to produce reliable and accurate results.


2014 ◽  
Vol 10 ◽  
pp. 87-89
Author(s):  
I.Sh. Nasibullayev ◽  
E.Sh. Nasibullaeva ◽  
E.V. Denisova

In this paper, the motion of a piston in a cylindrical tube is numerically studied with influence of dry and viscous friction and spring elasticity. Leading factors for models with dry and viscous friction are determined. A scheme for performing a full factorial computing experiment is proposed, where fuel consumption per unit time and fuel consumption for the period of periodic flow are chosen as objective functions.


2020 ◽  
Author(s):  
J. Sasikumar ◽  
S. Anitha ◽  
N. Harinisha

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