| Issue |
EPL
Volume 137, Number 6, March 2022
|
|
|---|---|---|
| Article Number | 63001 | |
| Number of page(s) | 6 | |
| Section | Fluid and nonlinear dynamics | |
| DOI | https://doi.org/10.1209/0295-5075/ac5934 | |
| Published online | 09 May 2022 | |
Dynamical system study for accretion discs: Differences between dark energy and adiabatic profiles
Department of Mathematics, The University of Burdwan - Golapbag Academic Complex, Burdwan, 713104, Purba Burdwan, West Bengal, India
(a) giridharideogharia@gmail.com
(b) biswas.ritabrata@gmail.com (corresponding author)
Received: 31 January 2022
Accepted: 28 February 2022
In this article accreting scenarios for adiabatic and dark energy are both chosen to construct phase portrait analysis. Components of Navier-Stokes equations and equation of state are picked to construct the nonlinear dynamics of accretion. Central singularities are observed to be formed in the phase diagram. Different regions in the phase diagrams are partitioned to study the nature of the gradients for radial speed and sonic speed. This study may shed some light on the inner disc activities.
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