Transient curvilinear-coordinate based fully nonlinear model for wave propagation and interactions with curved boundaries

2018 ◽  
Vol 30 (4) ◽  
pp. 549-563 ◽  
Author(s):  
Yu-Hsiang Chen ◽  
Keh-Han Wang
Keyword(s):  
Wave Propagation ◽  
Nonlinear Model ◽  
Curved Boundaries ◽  
Fully Nonlinear ◽  
Curvilinear Coordinate

Fully Nonlinear Model for Water Wave Propagation from Deep to Shallow Waters

2012 ◽  
Vol 138 (5) ◽  
pp. 362-371 ◽  
Author(s):  
A. Galan ◽  
G. Simarro ◽  
A. Orfila ◽  
J. Simarro ◽  
P. L.-F. Liu
Keyword(s):  
Wave Propagation ◽  
Nonlinear Model ◽  
Water Wave ◽  
Shallow Waters ◽  
Fully Nonlinear

Fully Nonlinear Model for Simulating Solitary Waves Propagating through a Partially Immersed Rectangular Structure

2017 ◽  
Vol 336 ◽  
pp. 1487-1497
Author(s):  
Chih-Hua Chang ◽  
Keh-Han Wang ◽  
Ping-Cheng Hsieh
Keyword(s):  
Solitary Waves ◽  
Nonlinear Model ◽  
Fully Nonlinear

A nonlinear model of ionic wave propagation along microtubules

2009 ◽  
Vol 38 (5) ◽  
pp. 637-647 ◽  
Author(s):  
M. V. Satarić ◽  
D. I. Ilić ◽  
N. Ralević ◽  
Jack Adam Tuszynski
Keyword(s):  
Wave Propagation ◽  
Nonlinear Model ◽  
Ionic Wave

Fully Nonlinear Model of Cables

AIAA Journal ◽  
1992 ◽  
Vol 30 (12) ◽  
pp. 2993-2996 ◽  
Author(s):  
Perngjin F. Pai ◽  
Ali H. Nayfeh
Keyword(s):  
Nonlinear Model ◽  
Fully Nonlinear

scholarly journals BOUSSINESQ-TYPE EQUATIONS WITH VARIABLE COEFFICIENTS FOR NARROW-BANDED WAVE PROPAGATION FROM ARBITRARY DEPTHS TO SHALLOW WATERS

2012 ◽  
Vol 1 (33) ◽  
pp. 5
Author(s):  
Gonzalo Simarro ◽  
Alvaro Galan ◽  
Alejandro Orfila
Keyword(s):  
Wave Propagation ◽  
Water Depth ◽  
Variable Coefficients ◽  
Shallow Waters ◽  
Type Model ◽  
Fully Nonlinear ◽  
Deep Waters ◽  
Proposed Model ◽  
Local Water ◽  
Wave Decomposition

A fully nonlinear Boussinessq-type model with 7 Nwogu’s α-like coefficients is considered. The model is one-layer and low-order to simplify the numerical solvability. The coefficients of the model are here considered functions of the local water depth so as to allow an improvement of the dispersive properties for narrow banded trains in very deep waters. The proposed model is fully nonlinear in weakly dispersive conditions, so that nonlinear wave decomposition in shallower waters is well reproduced.

Development and Validation of a Highly Nonlinear Model for Wave Propagation Over a Variable Bathymetry

2015 ◽  
Author(s):  
Maïté Gouin ◽  
Guillaume Ducrozet ◽  
Pierre Ferrant
Keyword(s):  
Wave Propagation ◽  
Nonlinear Model ◽  
Numerical Scheme ◽  
High Order ◽  
Numerical Results ◽  
Test Case ◽  
Test Cases ◽  
Highly Nonlinear ◽  
Propagating Waves ◽  
Development And Validation

Liu and Yue [1] developed a numerical scheme for propagating waves over a variable bathymetry with a High-Order Spectral (HOS) Method. The development of this nonlinear model is detailed and validated on three different test cases. They intend to demonstrate that such a model may be applied to small bottom variations as considered in [1] but also on cases where the bottom variation may be important. In this concern, the very well documented test case of a 2D underwater bar is studied in details. Comparisons are provided with both experimental and numerical results.

Studying the Effect of Freeplay on Nose Landing Gear Shimmy Using a Fully Nonlinear Model

2018 ◽  
Author(s):  
Mohsen Rahmani ◽  
Kamran Behdinan
Keyword(s):  
Nonlinear Model ◽  
Nonlinear Stability ◽  
Dynamic Models ◽  
Landing Gear ◽  
Stability Boundaries ◽  
Fully Nonlinear ◽  
Freeplay Nonlinearity ◽  
Stability Maps ◽  
Long Time ◽  
Time Histories

Shimmy is a common instability of landing gear systems which has been known for a long time. Yet, it is often studied using simplified dynamic models in which the chief system nonlinearities are neglected. Particularly, the influence of worn components and loose joints manifesting itself as a freeplay nonlinearity has been only touched upon in few works. The present paper utilizes a fully nonlinear landing gear dynamic model to obtain nonlinear stability boundaries and to study the onset, severity, frequency jumps, and mode shifts of the system as a result of the torque link freeplay. Using stability maps in the parameter space and time histories of the oscillations the degrading effect of excessive clearance and wear in the torque links is demonstrated, which in turn offers insights for designing shimmy-free landing gears.

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