Complex ray theory applied to instability of a two-dimensional wake

2020 ◽  
Vol 52 (4) ◽  
pp. 045509
Author(s):  
Nobutake Itoh
Keyword(s):  
Two Dimensional ◽  
Ray Theory ◽  
Complex Ray

Photodeflection signal formation in photothermal measurements: comparison of the complex ray theory, the ray theory, the wave theory, and experimental results

2007 ◽  
Vol 46 (22) ◽  
pp. 5216 ◽  
Author(s):  
Dorota Korte Kobylińska ◽  
Roman J. Bukowski ◽  
Boguslaw Burak ◽  
Jerzy Bodzenta ◽  
Stanislaw Kochowski
Keyword(s):  
Wave Theory ◽  
Experimental Results ◽  
Ray Theory ◽  
Complex Ray

Use of complex ray theory in the design of a laser diode module

1990 ◽  
Vol 29 (21) ◽  
pp. 3096 ◽  
Author(s):  
Takato Kudou ◽  
Mitsuhiro Yokota ◽  
Otozo Fukumitsu
Keyword(s):  
Laser Diode ◽  
Ray Theory ◽  
Complex Ray

The complex ray theory of photodeflection signal formation: Comparison with the ray theory and the experimental results

2006 ◽  
Vol 100 (6) ◽  
pp. 063501 ◽  
Author(s):  
Dorota Korte Kobylińska ◽  
Roman J. Bukowski ◽  
Bogusław Burak ◽  
Jerzy Bodzenta ◽  
Stanisław Kochowski
Keyword(s):  
Experimental Results ◽  
Ray Theory ◽  
Complex Ray

The evolution of thermocline waves from an oscillatory disturbance

1993 ◽  
Vol 254 ◽  
pp. 401-416 ◽  
Author(s):  
D. Nicolaou ◽  
R. Liu ◽  
T. N. Stevenson
Keyword(s):  
Finite Difference ◽  
Shear Flow ◽  
Stokes Equations ◽  
Navier Stokes ◽  
Two Dimensional ◽  
Ray Theory ◽  
Navier Stokes Equations ◽  
Linear Shear ◽  
Wave Shapes ◽  
The Way

The way in which energy propagates away from a two-dimensional oscillatory disturbance in a thermocline is considered theoretically and experimentally. It is shown how the St. Andrew's-cross-wave is modified by reflections and how the cross-wave can develop into thermocline waves. A linear shear flow is then superimposed on the thermocline. Ray theory is used to evaluate the wave shapes and these are compared to finite-difference solutions of the full Navier–Stokes equations.

Numerical simulation of converging nonlinear wavefronts

1999 ◽  
Vol 385 ◽  
pp. 1-20 ◽  
Author(s):  
PHOOLAN PRASAD ◽  
K. SANGEETA
Keyword(s):  
Numerical Simulation ◽  
Linear Theory ◽  
Amplitude Distribution ◽  
Two Dimensional ◽  
Ray Theory ◽  
Initial Shape ◽  
Weakly Nonlinear ◽  
Polytropic Gas ◽  
Uniform State

The propagation of a two-dimensional weakly nonlinear wavefront into a polytropic gas in a uniform state and at rest has been studied. Successive positions of the wavefront and the distribution of amplitude on it are obtained by solving a system of conservation forms of the equations of weakly nonlinear ray theory (WNLRT) using a TVB scheme based on the Lax–Friedrichs flux. The predictions of the WNLRT are found to be qualitatively quite different from the predictions of the linear theory. The linear wavefronts leading to the formation of caustics are replaced by nonlinear wavefronts with kinks. By varying the initial shape of the wavefront and the amplitude distribution on it, the formation and separation of kinks on the wavefront has been studied.

Sign in / Sign up

Export Citation Format

Share Document