192 citations · 841 across the 24 of their papers we have counts for
18 papers
Lorentz force mediation of turbulent dynamo transitions
Krista M. Soderlund, Paula Wulff, Petri Käpylä +1
We investigate how the strength of the Lorentz force alters stellar convection zone dynamics in a suite of buoyancy-dominated, three-dimensional, spherical shell convective dynamo…
The Pencil Code, a modular MPI code for partial differential equations and particles: multipurpose and multiuser-maintained
A. Brandenburg, A. Johansen, P. A. Bourdin +34
The Pencil Code is a highly modular physics-oriented simulation code that can be adapted to a wide range of applications. It is primarily designed to solve partial differential equ…
Electrodynamics of turbulent fluids with fluctuating electric conductivity
G. Rüdiger, M. Küker, P. J. Käpylä
The influence of fluctuating conductivity on the coefficients known from the mean-field electrodynamics is considered. If the conductivity fluctuations are assumed as uncorrelated…
Stellar dynamos in the transition regime: multiple dynamo modes and anti-solar differential rotation
M. Viviani, M. J. Käpylä, J. Warnecke +2
Global and semi-global convective dynamo simulations of solar-like stars are known to show a transition from an anti-solar (fast poles, slow equator) to solar-like (fast equator, s…
Sensitivity to luminosity, centrifugal force, and boundary conditions in spherical shell convection
Petri J. Käpylä, Frederick A. Gent, Nigul Olspert +2
We test the sensitivity of hydrodynamic and magnetohydrodynamic turbulent convection simulations with respect to Mach number, thermal and magnetic boundary conditions, and the cent…
Methods for compressible fluid simulation on GPUs using high-order finite differences
Johannes Pekkilä, Miikka S. Väisälä, Maarit J. Käpylä +2
We focus on implementing and optimizing a sixth-order finite-difference solver for simulating compressible fluids on a GPU using third-order Runge-Kutta integration. Since graphics…