Journal
PHYSICAL REVIEW E
Volume 86, Issue 6, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevE.86.066404
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Funding
- UK Engineering and Physical Sciences Research Council (EPSRC) [EP/I031766/1]
- UK EPSRC Science and Innovation award [EP/D06337X/1]
- National Research Foundation of South Africa (NRF)
- EPSRC [EP/D06337X/1, EP/I031766/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/D06337X/1, EP/I031766/1] Funding Source: researchfish
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Dust-acoustic waves are investigated in a three-component plasma consisting of strongly coupled dust particles and Maxwellian electrons and ions. A fluid model approach is used, with the effects of strong coupling being accounted for by an effective electrostatic pressure which is a function of the dust number density and the electrostatic potential. Both linear and weakly nonlinear cases are considered by derivation and analysis of the linear dispersion relation and the Korteweg-de Vries equation, respectively. In contrast to previous studies using this model, this paper presents the results arising from an expansion of the dynamical form of the electrostatic pressure, accounting for the variations in its value in the vicinity of the wave. DOI: 10.1103/PhysRevE.86.066404
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