Dynamics of a rigid body in a two-dimensional incompressible perfect fluid and the zero-radius limit
Sign Up to like & getrecommendations! Published in 2019 at "Science China Mathematics"
DOI: 10.1007/s11425-018-9505-8
Abstract: In this survey we report some recent results on the dynamics of a rigid body immersed in a two-dimensional incompressible perfect fluid, with an emphasis on the zero-radius limit. read more here.
Keywords: perfect fluid; incompressible perfect; dimensional incompressible; dynamics rigid ... See more keywords
Greybody factor for a rotating Bardeen black hole by perfect fluid dark matter
Sign Up to like & getrecommendations! Published in 2021 at "Annals of Physics"
DOI: 10.1016/j.aop.2021.168673
Abstract: In this paper, the greybody factor is studied analytically for a rotating regular Bardeen black hole surrounded by perfect fluid dark matter. Firstly, we examine the behavior of effective potential by using the radial equation… read more here.
Keywords: greybody factor; fluid dark; dark matter; perfect fluid ... See more keywords
Note on the fall of an axisymmetric body in a perfect fluid over a horizontal ramp
Sign Up to like & getrecommendations! Published in 2018 at "Comptes Rendus Mathematique"
DOI: 10.1016/j.crma.2018.10.001
Abstract: Abstract In this note, we consider the fall of an axisymmetric body in a perfect fluid over a ramp. It was shown in [12] that the possibility of a collision between the body and the… read more here.
Keywords: ramp; body perfect; perfect fluid; axisymmetric body ... See more keywords
Perfect fluid filled universe in odd dimensional pure Lovelock gravity
Sign Up to like & getrecommendations! Published in 2020 at "Physics of the Dark Universe"
DOI: 10.1016/j.dark.2020.100735
Abstract: Abstract It is well known that d = 2 N + 1 dimensional pure Lovelock metrics do not describe bounded distributions neither do they admit nontrivial vacuum solutions. On this basis it has been variously… read more here.
Keywords: fluid filled; perfect fluid; pure lovelock; dimensional pure ... See more keywords
Perfect fluid spacetimes and Yamabe solitons
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Mathematical Physics"
DOI: 10.1063/5.0033967
Abstract: This paper deals with the study of perfect fluid spacetimes. It is proven that a perfect fluid spacetime is Ricci recurrent if and only if the velocity vector field of perfect fluid spacetime is parallel… read more here.
Keywords: fluid; perfect fluid; yamabe solitons; vector field ... See more keywords
On the axisymmetric metric generated by a rotating perfect fluid with the vacuum boundary
Sign Up to like & getrecommendations! Published in 2020 at "Classical and Quantum Gravity"
DOI: 10.1088/1361-6382/abfed3
Abstract: We consider the equations for the coefficients of stationary rotating axisymmetric metrics governed by the Einstein–Euler equations, that is, the Einstein equations together with the energy–momentum tensor of a barotropic perfect fluid. Although the reduced… read more here.
Keywords: metric generated; system; perfect fluid; vacuum boundary ... See more keywords
Perfect Fluid Hydrodynamic Picture of Domain Wall Velocities at Strong Coupling.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.129.081601
Abstract: We show that for a range of strongly coupled theories with a first order phase transition, the domain wall or bubble velocity can be expressed in a simple way in terms of a perfect fluid… read more here.
Keywords: perfect fluid; domain wall; fluid hydrodynamic; wall velocities ... See more keywords
Dynamics of perfect fluid collapse in f(đť’˘,T) gravity
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Modern Physics D"
DOI: 10.1142/s0218271819500548
Abstract: This paper investigates the dynamics of perfect fluid spherical collapse in curvature-matter coupled gravity. Using Darmois junction conditions, we derive smooth matching of both interior and exterior regions. The dynamical equations are formulated through Misner–Sharp… read more here.
Keywords: perfect fluid; collapse gravity; dynamics perfect; collapse ... See more keywords
Generalized Ricci recurrent spacetimes and GRW spacetimes
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Geometric Methods in Modern Physics"
DOI: 10.1142/s0219887821502091
Abstract: The main goal of this paper is to study the properties of generalized Ricci recurrent perfect fluid spacetimes and the generalized Ricci recurrent (generalized Robertson–Walker (GRW)) spacetimes. It is proven that if the generalized Ricci… read more here.
Keywords: ricci recurrent; generalized ricci; perfect fluid; grw spacetimes ... See more keywords
Perfect fluid spacetimes with harmonic generalized curvature tensor
Sign Up to like & getrecommendations! Published in 2019 at "Osaka Journal of Mathematics"
DOI: 10.18910/71142
Abstract: We show that n-dimensional perfect fluid spacetimes with divergence-free conformal curvature tensor and constant scalar curvature are generalized Robertson Walker (GRW) spacetimes; as a consequence a perfect fluid Yang pure space is a GRW spacetime.… read more here.
Keywords: perfect fluid; curvature tensor; fluid spacetimes; curvature ... See more keywords
Radiation Properties of the Accretion Disk around a Black Hole Surrounded by PFDM
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DOI: 10.3390/sym14091765
Abstract: The thermal radiation properties of the accretion disk around a non-rotating black hole with a perfect fluid dark matter (PFDM) environment are investigated. A non-rotating black hole surrounded by perfect fluid dark matter together with… read more here.
Keywords: perfect fluid; dark matter; disk; fluid dark ... See more keywords