4 papers
A C++ implementation of the G-Scheme stiff ODE solver with multi-resolution sparse hash-table kernel lookup
Riccardo Malpica Galassi, Mauro Valorani
The G-Scheme is an explicit, adaptive integration framework for stiff systems of ordinary differential equations that exploits a local time-scale decomposition provided by the eige…
The Algebra of Units: From Buckingham's Pi-grec Theorem to Latent-Variable Learning
Mauro Valorani
Engineers often measure many quantities-speed, pressure, temperature, length-expressed in different physical units. The Buckingham Pi-grec theorem states that these variables can a…
Learning Stiff Dynamical Operators: Scaling, Fast-Slow Excitation, and Eigen-Consistent Neural Models
Mauro Valorani
Stiff dynamical systems represent a central challenge in multi scale modeling across combustion, chemical kinetics, and nonlinear dynamical systems. Neural operator learning has re…
Detached eddy simulation of shock unsteadiness in an over-expanded planar nozzle
Emanuele Martelli, Pietro Paolo Ciottoli, Matteo Bernardini +2
This work investigates the self-excited shock wave oscillations in a three-dimensional planar over-expanded nozzle turbulent flow by means of Detached Eddy Simulations. Time resolv…