32 citations · 104 across the 11 of their papers we have counts for
12 papers
Retrieval-Augmented Generation for Scientific Code Understanding
Aaron Nobile, Andreas Adelmann, Mohsen Sadr
Large language models have become central to modern coding assistants, but state-of-the-art systems such as Claude Code or Codex rely on very large, cloud-hosted models with signif…
ORB5X: a performance-portable global electromagnetic gyrokinetic PIC code in C++/Kokkos built using Agentic AI
Mohsen Sadr, Emmanuel Lanti, Alexey Mishchenko +2
ORB5X is a C++17/Kokkos AI-assisted translation of ORB5, a global electromagnetic gyrokinetic particle-in-cell code for toroidal confined plasmas. The translation preserves the mat…
VR-PIC: An entropic variance-reduction method for particle-in-cell solutions of the Vlasov-Poisson equation
Victor Windhab, Andreas Adelmann, Mohsen Sadr
We extend the recently developed entropic and conservative variance reduction framework [M. Sadr, N. G. Hadjiconstantinou, A variance-reduced direct Monte Carlo simulation method f…
Gaussian Process Regression for Maximum Entropy Distribution
Mohsen Sadr, Manuel Torrilhon, M. Hossein Gorji
Maximum-Entropy Distributions offer an attractive family of probability densities suitable for moment closure problems. Yet finding the Lagrange multipliers which parametrize these…
Treatment of long-range interactions arising in the Enskog-Vlasov description of dense fluids
Mohsen Sadr, M. Hossein Gorji
The kinetic theory of rarefied gases and numerical schemes based on the Boltzmann equation have evolved to the cornerstone of non-equilibrium gas dynamics. However, their counterpa…
Coupling kinetic and continuum using data-driven maximum entropy distribution
Mohsen Sadr, Qian Wang, M. Hossein Gorji
An important class of multi-scale flow scenarios deals with an interplay between kinetic and continuum phenomena. While hybrid solvers provide a natural way to cope with these sett…
Fokker-Planck-Poisson kinetics: Multi-phase flow beyond equilibrium
Mohsen Sadr, Marcel Pfeiffer, M. Hossein Gorji
Multi-phase phenomena remain at the heart of many challenging fluid dynamics problems. Molecular fluxes at the interface determine the fate of neighboring phases, yet their closure…
A Continuous Stochastic Model for Non-Equilibrium Dense Gases
Mohsen Sadr, M. Hossein Gorji
While accurate simulations of dense gas flows far from the equilibrium can be achieved by Direct Simulation adapted to the Enskog equation, the significant computational demand req…
Wasserstein-penalized Entropy closure: A use case for stochastic particle methods
Mohsen Sadr, Nicolas G. Hadjiconstantinou, M. Hossein Gorji
We introduce a framework for generating samples of a distribution given a finite number of its moments, targeted to particle-based solutions of kinetic equations and rarefied gas f…
MESSY Estimation: Maximum-Entropy based Stochastic and Symbolic densitY Estimation
Tony Tohme, Mohsen Sadr, Kamal Youcef-Toumi +1
We introduce MESSY estimation, a Maximum-Entropy based Stochastic and Symbolic densitY estimation method. The proposed approach recovers probability density functions symbolically…
An efficient jump-diffusion approximation of the Boltzmann equation
Fabian Mies, Mohsen Sadr, Manuel Torrilhon
A jump-diffusion process along with a particle scheme is devised as an accurate and efficient particle solution to the Boltzmann equation. The proposed process (hereafter Gamma-Bol…
Linear and nonlinear excitation of TAE modes by external electromagnetic perturbations using ORB5
Mohsen Sadr, Alexey Mishchenko, Thomas Hayward-Schneider +6
The excitation of toroidicity induced Alfv{é}n eigenmodes (TAEs) using prescribed external electromagnetic perturbations (hereafter ``antenna") acting on a confined toroidal plasma…