Instabilities in Three‐dimensional Simulations of Astrophysical Jets Crossing Tilted Interfaces

1998 ◽  
Vol 493 (1) ◽  
pp. 81-90 ◽  
Author(s):  
Jagbir S. Hooda ◽  
Paul J. Wiita
Keyword(s):  
Three Dimensional ◽  
Astrophysical Jets ◽  
Three Dimensional Simulations

scholarly journals GRAVITATIONAL FRAGMENTATION OF EXPANDING SHELLS. II. THREE-DIMENSIONAL SIMULATIONS

2011 ◽  
Vol 733 (1) ◽  
pp. 17 ◽  
Author(s):  
Kazunari Iwasaki ◽  
Shu-ichiro Inutsuka ◽  
Toru Tsuribe
Keyword(s):  
Three Dimensional ◽  
Expanding Shells ◽  
Three Dimensional Simulations

Thermospheric response to morningside diffuse aurora: High-resolution three-dimensional simulations

1995 ◽  
Vol 100 (A12) ◽  
pp. 23779 ◽  
Author(s):  
Zi-Ping Sun ◽  
R. P. Turco ◽  
R. L. Walterscheid ◽  
S. V. Venkateswaran ◽  
P. W. Jones
Keyword(s):  
High Resolution ◽  
Three Dimensional ◽  
Diffuse Aurora ◽  
Three Dimensional Simulations

scholarly journals Evolution of a narrow-band spectrum of random surface gravity waves

2003 ◽  
Vol 478 ◽  
pp. 1-10 ◽  
Author(s):  
KRISTIAN B. DYSTHE ◽  
KARSTEN TRULSEN ◽  
HARALD E. KROGSTAD ◽  
HERVÉ SOCQUET-JUGLARD
Keyword(s):  
Three Dimensional ◽  
Low Frequency ◽  
Three Dimensions ◽  
Band Spectrum ◽  
Nls Equation ◽  
Random Surface ◽  
Narrow Bandwidth ◽  
Quasi Stationary State ◽  
The Stability ◽  
Three Dimensional Simulations

Numerical simulations of the evolution of gravity wave spectra of fairly narrow bandwidth have been performed both for two and three dimensions. Simulations using the nonlinear Schrödinger (NLS) equation approximately verify the stability criteria of Alber (1978) in the two-dimensional but not in the three-dimensional case. Using a modified NLS equation (Trulsen et al. 2000) the spectra ‘relax’ towards a quasi-stationary state on a timescale (ε2ω0)−1. In this state the low-frequency face is steepened and the spectral peak is downshifted. The three-dimensional simulations show a power-law behaviour ω−4 on the high-frequency side of the (angularly integrated) spectrum.

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