70 citations · 80 across the 10 of their papers we have counts for
10 papers
A general tool for LTE thermochemistry for adiabatic nondiffusive fluid dynamics: applications to 2D planar discontinuity flows in SPH
Giuseppe Lanzafame
Chemical reactions in fluid dynamics deeply modify the flow physical conditions through both the contribution of the energy of reactions and the variation of the mean molecular wei…
Molecular dissipation in the nonlinear eddy viscosity in the Navier-Stokes equations: modelling of accretion discs
Giuseppe Lanzafame
Physical damping, regarding the nonlinear Navier-Stokes viscous flow dynamics, refers to a tensorial turbulent dissipation term, attributed to adjacent moving macroscopic flow comp…
Implicit integrations for SPH in Semi-Lagrangian approach: application to the accretion disc modelling in a microquasar
G. Lanzafame
Current explicit integration techniques in fluid dynamics are deeply limited by the Courant-Friedrichs-Lewy condition of the time step progression, based on the adopted spatial res…
An approach for solving the boundary free edge difficulties in SPH modelling: application to a viscous accretion disc in close binaries
G. Lanzafame
In this work, we propose a SPH interpolating Kernel reformulation suitable also to treat free edge boundaries in the computational domain. Application to both inviscid and viscous…
An approach to the Riemann problem in the light of a reformulation of the state equation for SPH inviscid ideal flows: a highlight on spiral hydrodynamics in accretion discs
G. Lanzafame
In physically inviscid fluid dynamics, "shock capturing" methods adopt either an artificial viscosity contribution or an appropriate Riemann solver algorithm. These techniques are…
An approach to the Riemann problem for SPH inviscid ideal flows: consequences for the state equation
G. Lanzafame
In the non viscous fluid dynamics, Smooth Particle Hydrodynamics (SPH), as a free Lagrangian "shock capturing" method adopts either an artificial viscosity contribution or an appro…
How initial and boundary conditions affect protoplanetary migration in a turbulent sub-Keplerian accretion disc: 2D non viscous SPH simulations
Vincenzo Costa, Valerio Pirronello, Gaetano Belvedere +3
Current theories on planetary formation establish that giant planet formation should be contextual to their quick migration towards the central star due to the protoplanets-disc in…
An approach to the Riemann problem for SPH inviscid ideal flows
G. Lanzafame
In the physically non viscous fluid dynamics, "shock capturing" methods adopt either an artificial viscosity contribution or an appropriate Riemann solver algorithm. These techniqu…
Smoothed Particle Hydrodynamic Simulations of Viscous Accretion Discs Around Black Holes
Giuseppe Lanzafame, D. Molteni, S. K. Chakrabarti
Viscous Keplerian discs become sub-Keplerian close to a black hole since they pass through sonic points before entering into it. We study the time evolution of polytropic viscous a…
Numerical Simulations Of Advective Flows Around Black Holes
Sandip K. Chakrabarti, D. Ryu, D. Molteni +3
We present fully time-dependent solutions of accretion processes on black holes and compare them with analytical solutions. We use Smoothed Particle Hydrodynamics and Total Variati…