Towards convergence of turbulent dynamo amplification in cosmological simulations of galaxies by Martin-Alvarez, S, Devriendt, J, Slyz, A, Sijacki, D, Richardson, MLA, Katz, H

“…A traditional quasi-Lagrangian adaptive mesh refinement approach focusing spatial resolution on dense regions, and a new refinement method that resolves the entire galaxy with a high resolution quasi-uniform grid. …”

The angular momentum of baryons and dark matter halos revisited by Kimm, T, Devriendt, J, Slyz, A, Pichon, C, Kassin, S, Dubois, Y

“…Revisiting this issue using high-resolution cosmological hydrodynamics simulations with adaptive mesh refinement, we find that at the time of accretion, gas and dark matter do carry a similar amount of specific angular momentum, but that it is systematically higher than that of the dark matter halo as a whole. …”

Rivers of gas – I. Unveiling the properties of high redshift filaments by Ramsøy, M, Slyz, A, Devriendt, J, Laigle, C, Dubois, Y

“…With this goal in mind, we perform an analysis of high-z gas and dark matter (DM) filaments around a Milky Way-like progenitor simulated with the RAMSES adaptive mesh refinement (AMR) code from cosmic scales (∼1 Mpc) down to the virial radius of its DM halo host (∼20 kpc at z = 4). …”

Mixed Mesh Finite Volume Method for 1D Hyperbolic Systems with Application to Plug-Flow Heat Exchangers by Jiří Dostál, Vladimír Havlena

“…Finite volume methods are known to introduce numerical diffusion, and there exist a wide variety of schemes to minimize its occurrence; the most recent being adaptive grid methods such as moving mesh methods or adaptive mesh refinement methods. We present a solution method for a class of hyperbolic systems with one nonzero time-dependent characteristic velocity. …”
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ECFM-LES modeling with AMR for the CCV prediction and analysis in lean-burn engines by Maio Giampaolo, Ding Zhihao, Truffin Karine, Colin Olivier, Benoit Olivier, Jay Stéphane

“…Then, the fired configuration is investigated, combining ECFM (Extended Coherent Flame Model) turbulent combustion model with Adaptive Mesh Refinement (AMR). The capability of the model to reproduce experimental pressure envelope and cycle-to-cycle variability is assessed. …”
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Optimised Adjoint Sensitivity Analysis Using Adjoint Guided Mesh Adaptivity Applied to Neutron Detector Response Calculations by Andrew G. Buchan, Dan G. Cacuci, Steven Dargaville, Christopher C. Pain

“…The method is a combined application of adjoint-based models to perform, simultaneously, both the sensitivity calculation together with optimal adaptive mesh refinement. Adjoint-based sensitivity methods are known for their efficiency since they enable sensitivities of all parameters to be formed through only two solutions to the problem. …”
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A Numerical Investigation on the Collision Behavior of Unequal-Sized Micro-Nano Droplets by Lijuan Qian, Jingqi Liu, Hongchuan Cong, Fang Zhou, Fubing Bao

“…Collision dynamics of unequal-sized micro-nano droplets are simulated by a coupled level-set and volume of fluid (CLSVOF) method with adaptive mesh refinement (AMR). The effects of the size ratio (from 0.25 to 0.75) and different initial collision velocities on the head-on collision process of two unequal-sized droplets at We = 210 are studied. …”
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3D Transient CFD Simulation of an In-Vessel Loss-of-Coolant Accident in the EU DEMO WCLL Breeding Blanket by Mauro Sprò, Antonio Froio, Andrea Zappatore

“…Due to the large pressure ratio (>1000), shocks are expected; therefore, an Adaptive Mesh Refinement (AMR) algorithm is employed. The physical models (in particular, the multiphase model) are benchmarked to a 2D reference problem before being applied to the 3D EU DEMO-relevant problem. …”
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Prediction of shock heating during ultrasound-induced bubble collapse using real-fluid equations of state by Saeed Bidi, Armand Shams, Phoevos Koukouvinis, Manolis Gavaises

“…The solver is coded in the AMReX platform, enabling high-performance computation with parallel processing and Adaptive Mesh Refinement for speeding up simulations. It is initially demonstrated that the frequently used Stiffened Gas (SG) EoS overpredicts the liquid temperature at high compression. …”
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Systematic Validation Study of an Unsteady Cavitating Flow over a Hydrofoil Using Conditional Averaging: LES and PIV by Elizaveta Ivashchenko, Mikhail Hrebtov, Mikhail Timoshevskiy, Konstantin Pervunin, Rustam Mullyadzhanov

“…We employ the Schnerr–Sauer and Kunz cavitation models together with the adaptive mesh refinement in critical flow regions where intensive phase transitions occur. …”
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Contrasting the modelled sensitivity of the Amundsen Sea Embayment ice streams by ISABEL J. NIAS, STEPHEN L. CORNFORD, ANTONY J. PAYNE

“…To understand the differences in response of these ice streams, we ran a perturbed parameter ensemble, using a vertically-integrated ice flow model with adaptive mesh refinement. We generated 71 sets of three physical parameters (basal traction coefficient, ice viscosity stiffening factor and sub-shelf melt rate), which we used to simulate the ASE for 50 years. …”
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Hurricane‐Like Vortices in Conditionally Unstable Moist Convection by Mu‐Hua Chien, Olivier M. Pauluis, Ann S. Almgren

“…The governing equations are solved numerically using a variable‐density incompressible Navier‐Stokes solver with adaptive mesh refinement to explore the behavior of moist convection under a broad range of conditions. …”
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An approximated volume of fluid method with the modified height function method in the simulation of surface tension driven flows by Cheng Liu, Ruoqing Gao, Changhong Hu

“…The present method is implemented with a parallel block-structured adaptive mesh refinement (BAMR) strategy; thus, the computational cost can be reduced significantly. …”
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On the phase-field modeling of thermo-electromechanical brittle fracture in piezoceramics using an adaptive isogeometric approach by Kiran, Raj, Nguyen-Thanh, Nhon, Zhou, Kun

“…This study employs polynomial splines over hierarchical T-meshes (PHT-splines) for geometric and spatial discretization, constituting an efficient adaptive mesh refinement scheme within the framework of isogeometric analysis that uses a prescribed value of the phase-field parameter as an error indicator. …”
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Radio continuum surveys and galaxy evolution: modelling and simulations by Slyz, A, Devriendt, J, Jarvis, M, Dubois, Y, Pichon, C

“…We predict the evolution of the radio continuum sky at 1.4 GHz from the Horizon-AGN Adaptive Mesh Refinement (AMR) cosmological hydrodynamical simulation of a cubic volume of the Universe 100h−1 Mpc on a side. …”

An algorithm for adaptive introduction and arrangement of velocity discontinuities within 3D finite-element-based upper bound limit analysis approaches by Li, M, Füssl, J, Lukacevic, M, Eberhardsteiner, J, Martin, C

“…This represents an attractive alternative to commonly-used adaptive mesh refinement strategies, where often a huge number of degrees of freedom need to be added to capture localised failure. …”

Jet-regulated cooling catastrophe by Dubois, Y, Devriendt, J, Slyz, A, Teyssier, R

“…We present the first implementation of Active Galactic Nuclei (AGN) feedback in the form of momentum driven jets in an Adaptive Mesh Refinement (AMR) cosmological resimulation of a galaxy cluster. …”

Nonlinear convection in sea ice and other mushy layers by Parkinson, JRG

“…I develop a code for direct numerical simulations in two and three dimensions, which uses adaptive mesh refinement to efficiently resolve the key dynamical features across multiple scales by solving mesoscopic conservation equations. …”

Modelling species invasions in heterogeneous landscapes by Gilbert, M

“…We overcome this by developing and implementing a novel algorithm that uses <em>adaptive mesh refinement</em>. The approximations and simulation algorithm produce accurate results, with the adaptive algorithm providing large improvements in efficiency without significant losses of accuracy compared to non-adaptive simulations. …”

Emission from the circumgalactic medium: from cosmological zoom-in simulations to multiwavelength observables by Augustin, R, Quiret, S, Milliard, B, Peroux, C, Vibert, D, Blaizot, J, Rasera, Y, Teyssier, R, Frank, S, Deharveng, J, Picouet, V, Martin, D, Hamden, E, Thatte, N, Santaella, M, Routledge, L, Zieleniewski, S

“…We use dedicated zoom-in cosmological simulations with the hydrodynamical adaptive mesh refinement code RAMSES, which are evolved down to <em>z</em> = 0 and reach a maximum spatial resolution of 380 <em>h</em>⁻¹ pc and a gas mass resolution up to 1.8×10⁵ h⁻¹ M⊙ in the densest regions. …”