Low Frequency Longitudinal Modes in Strongly Coupled Collisional Dusty Plasmas

2000 ◽  
Vol 62 (5) ◽  
pp. 413-416 ◽  
Author(s):  
B S Xie ◽  
M Y Yu
Keyword(s):  
Low Frequency ◽  
Dusty Plasmas ◽  
Strongly Coupled ◽  
Longitudinal Modes

Low-frequency electrostatic instabilities in strongly coupled dusty plasmas

2001 ◽  
Vol 29 (2) ◽  
pp. 226-230 ◽  
Author(s):  
Baisong Xie ◽  
Zhaoyang Chen ◽  
M.Y. Yu
Keyword(s):  
Low Frequency ◽  
Dusty Plasmas ◽  
Strongly Coupled

Effect of superthermal electrons on dust-acoustic shock waves in coupled dusty plasmas

2012 ◽  
Vol 79 (1) ◽  
pp. 97-103
Author(s):  
HAMID REZA PAKZAD ◽  
MOULOUD TRIBECHE
Keyword(s):  
Shock Waves ◽  
Low Frequency ◽  
Dusty Plasmas ◽  
Dust Particles ◽  
Superthermal Electrons ◽  
Plasma Parameters ◽  
Strongly Coupled ◽  
Dust Acoustic ◽  
Strongly Coupled Dusty Plasma ◽  
Kappa Distributed Electrons

AbstractNonlinear dust-acoustic (DA) shock waves in coupled dusty plasmas with negative dust grains and kappa-distributed electrons are discussed. Using a generalized hydrodynamic model, the dispersion relation and the Korteweg–de Vries-Burger (KdVB) equation for low-frequency DA modes in a strongly coupled dusty plasma are derived. The dependence of shock waves on various plasma parameters is then explored. A solitonic profile may be converted into a shock structure when correlation among dust particles becomes stronger. The amplitude as well as the steepness of shock waves increases with increasing the value of the spectral index k.

Low frequency modes in strongly coupled magnetized dusty plasmas

2004 ◽  
Vol 11 (7) ◽  
pp. 3519-3524 ◽  
Author(s):  
Bai-Song Xie ◽  
Yan-Ping Chen
Keyword(s):  
Low Frequency ◽  
Dusty Plasmas ◽  
Strongly Coupled

Low frequency modes in strongly coupled dusty plasmas

1998 ◽  
Vol 5 (10) ◽  
pp. 3552-3559 ◽  
Author(s):  
P. K. Kaw ◽  
A. Sen
Keyword(s):  
Low Frequency ◽  
Dusty Plasmas ◽  
Strongly Coupled

Turbulence in strongly coupled dusty plasmas using generalized hydrodynamic description

2015 ◽  
Vol 22 (2) ◽  
pp. 023710 ◽  
Author(s):  
Sanat Kumar Tiwari ◽  
Vikram Singh Dharodi ◽  
Amita Das ◽  
Bhavesh G. Patel ◽  
Predhiman Kaw
Keyword(s):  
Dusty Plasmas ◽  
Hydrodynamic Description ◽  
Strongly Coupled

Low-frequency sound sources in high-speed turbulent jets

2008 ◽  
Vol 617 ◽  
pp. 231-253 ◽  
Author(s):  
DANIEL J. BODONY ◽  
SANJIVA K. LELE
Keyword(s):  
High Speed ◽  
Low Frequency ◽  
Turbulent Jets ◽  
Acoustic Analogy ◽  
Sound Sources ◽  
Strongly Coupled ◽  
Eddy Simulation ◽  
Phase Cancellation ◽  
Jet Velocity ◽  
Two Jets

An analysis of the sound radiated by three turbulent, high-speed jets is conducted using Lighthill's acoustic analogy (Proc. R. Soc. Lond. A, vol. 211, 1952, p. 564). Computed by large eddy simulation the three jets operate at different conditions: a Mach 0.9 cold jet, a Mach 2.0 cold jet and a Mach 1.0 heated jet. The last two jets have the same jet velocity and differ only by temperature. None of the jets exhibit Mach wave characteristics. For these jets the comparison between the Lighthill-predicted sound and the directly computed sound is favourable for all jets and for the two angles (30° and 90°, measured from the downstream jet axis) considered. The momentum (ρuiuj) and the so-called entropy [p − p∞ − a∞2(ρ − ρ∞)] contributions are examined in the acoustic far field. It is found that significant phase cancellation exists between the momentum and entropy components. It is observed that for high-speed jets one cannot consider ρuiuj and (p′ − a∞2ρ′)δij as independent sources. In particular the ρ′ūxūx component of ρuiuj is strongly coupled with the entropy term as a consequence of compressibility and the high jet velocity and not because of a linear sound-generation mechanism. Further, in more usefully decoupling the momentum and entropic contributions, the decomposition of Tij due to Lilley (Tech. Rep. AGARD CP-131 1974) is preferred. Connections are made between the present results and the quieting of high-speed jets with heating.

Low frequency waves in streaming quantum dusty plasmas

2017 ◽  
Vol 24 (9) ◽  
pp. 093702 ◽  
Author(s):  
Ch. Rozina ◽  
M. Jamil ◽  
Arroj A. Khan ◽  
I. Zeba ◽  
J. Saman
Keyword(s):  
Low Frequency ◽  
Dusty Plasmas ◽  
Low Frequency Waves
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