44 citations · 188 across the 15 of their papers we have counts for
5 papers · 1 filter
Asymptotic-preserving gyrokinetic implicit particle-orbit integrator for arbitrary electromagnetic fields
Lee Ricketson, Luis Chacón
We extend the asymptotic preserving and energy conserving time integrator for charged-particle motion developed in [Ricketson & Chacón, JCP, 2020] to include finite Larmor-radius (…
Sparse Grids based Adaptive Noise Reduction strategy for Particle-In-Cell schemes
Sriramkrishnan Muralikrishnan, Antoine J. Cerfon, Matthias Frey +2
We propose a sparse grids based adaptive noise reduction strategy for electrostatic particle-in-cell (PIC) simulations. Our approach is based on the key idea of relying on sparse g…
An energy-conserving and asymptotic-preserving charged-particle orbit implicit time integrator for arbitrary electromagnetic fields
Lee F. Ricketson, Luis Chacón
We present a new implicit asymptotic preserving time integration scheme for charged-particle orbit computation in arbitrary electromagnetic fields. The scheme is built on the Crank…
Sparse grid techniques for particle-in-cell schemes
Lee F Ricketson, Antoine J Cerfon
We propose the use of sparse grids to accelerate particle-in-cell (PIC) schemes. By using the so-called `combination technique' from the sparse grids literature, we are able to dra…
An entropy based thermalization scheme for hybrid simulations of Coulomb collisions
L. F. Ricketson, M. S. Rosin, R. E. Caflisch +1
We formulate and test a hybrid fluid-Monte Carlo scheme for the treatment of elastic collisions in gases and plasmas. While our primary focus and demonstrations of applicability ar…