6 papers
Shock Structure for Hyperbolic Balance Laws with Evolutionary Constraints
Natale Manganaro, Tommaso Ruggeri
We study travelling shock profiles for dissipative quasilinear hyperbolic balance laws endowed with a convex entropy principle and subject to involutive differential constraints. F…
Nonisothermal Shock Structure and Universal Flow-Index Thresholds in a Hyperbolic Power-Law Fluid
Tommaso Ruggeri
We investigate whether the two flow-index thresholds previously found for isothermal shock profiles persist when the full nonisothermal dynamics is taken into account in a hyperbol…
Six-Field Rational Extended Thermodynamics of Polyatomic Gases in Curved Spacetime
Luca Gallerani, Andrea Giusti, Andrea Mentrelli +1
We formulate a generally covariant six-field Rational Extended Thermodynamics model (RET) for relativistic polyatomic gases, with the dynamical pressure as the only non-equilib…
Energy of a non-linear viscoelastic model compatible with fractional relaxation
Andrea Giusti, Andrea Mentrelli, Tommaso Ruggeri
Recently, a non-linear model of viscoelasticity based on Rational Extended Thermodynamics was proposed in [arXiv:2312.05116]. This theory extends the evolution of the viscous stres…
A Nonlinear approach to Viscoelasticity via Rational Extended Thermodynamics
Tommaso Ruggeri
In the one-dimensional isothermal case, we introduce a simple model of nonlinear viscoelasticity within the Rational Extended Thermodynamics (RET) framework. The differential syste…
A Novel ES-BGK Model for Non-Polytropic Gases with Internal State Density Independent of the Temperature
Takashi Arima, Andrea Mentrelli, Tommaso Ruggeri
A novel ES-BGK-based model of non-polytropic rarefied gases in the framework of kinetic theory is presented. Key features of this model are: an internal state density function depe…