Conservation of energy and absorption in acoustic fields for linear and nonlinear propagation

1998 ◽  
Vol 104 (5) ◽  
pp. 2654-2663 ◽  
Author(s):  
Janusz Wójcik
Keyword(s):  
Nonlinear Propagation ◽  
Acoustic Fields ◽  
Conservation Of Energy ◽  
Linear And Nonlinear

scholarly journals Numerical indicators of nonlinear propagation in acoustic fields

2004 ◽  
Vol 1 ◽  
pp. 63-63
Author(s):  
T M Duncan ◽  
R Hekkenberg ◽  
V F Humphrey ◽  
F Duck ◽  
M P Cooling
Keyword(s):  
Nonlinear Propagation ◽  
Acoustic Fields

scholarly journals Linear and nonlinear propagation of optical Nyquist pulses in fibers

2012 ◽  
Vol 20 (18) ◽  
pp. 19836 ◽  
Author(s):  
Toshihiko Hirooka ◽  
Masataka Nakazawa
Keyword(s):  
Nonlinear Propagation ◽  
Nyquist Pulses ◽  
Linear And Nonlinear

scholarly journals Numerical analysis of weak acoustic shocks in aperiodic array of rigid scatterers

2020 ◽  
Author(s):  
Michael Muhlestein ◽  
Carl Hart
Keyword(s):  
Numerical Experiments ◽  
Periodic Structures ◽  
Nonlinear Propagation ◽  
Nonlinear Frequency ◽  
Relative Importance ◽  
Frequency Content ◽  
Rectangular Waveguides ◽  
Initial Shock ◽  
Linear And Nonlinear ◽  
Kzk Equation

Nonlinear propagation of shock waves through periodic structures have the potential to exhibit interesting phenomena. Frequency content of the shock that lies within a bandgap of the periodic structure is strongly attenuated, but nonlinear frequency-frequency interactions pumps energy back into those bands. To investigate the relative importance of these propagation phenomena, numerical experiments using the Khokhlov-Zabolotskaya-Kuznetsov (KZK) equation are carried out. Two-dimensional propagation through a periodic array of rectangular waveguides is per-formed by iteratively using the output of one waveguide as the input for the next waveguide. Comparison of the evolution of the initial shock wave for both the linear and nonlinear cases is presented.

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