Downscaling, parameterization, decomposition, compression: a perspective from the multiresolution analysis [PDF]
Geophysical models in general, and atmospheric models more specifically, are always limited in spatial resolutions. Due to this limitation, we face with two different needs.
J.-I. Yano
doaj +1 more source
Mathematical Methodology and Metallurgical Application of Turbulence Modelling: A Review
This paper focusses on three main numerical methods, i.e., the Reynolds-Averaged Navier-Stokes (RANS), Large Eddy Simulation (LES), and Direct Numerical Simulation (DNS) methods. The formulation and variation of different RANS methods are evaluated.
Yannan Wang +4 more
doaj +1 more source
Multi-scale snowdrift-permitting modelling of mountain snowpack [PDF]
The interaction of mountain terrain with meteorological processes causes substantial temporal and spatial variability in snow accumulation and ablation.
V. Vionnet +8 more
doaj +1 more source
Error induced by neglecting subgrid chemical segregation due to inefficient turbulent mixing in regional chemical-transport models in urban environments [PDF]
We employed direct numerical simulations to estimate the error on chemical calculation in simulations with regional chemical-transport models induced by neglecting subgrid chemical segregation due to inefficient turbulent mixing in an urban boundary ...
C. W. Y. Li +4 more
doaj +1 more source
Model development in practice: a comprehensive update to the boundary layer schemes in HARMONIE-AROME cycle 40 [PDF]
The parameterised description of subgrid-scale processes in the clear and cloudy boundary layer has a strong impact on the performance skill in any numerical weather prediction (NWP) or climate model and is still a prime source of uncertainty.
W. C. de Rooy +10 more
doaj +1 more source
Çinlar subgrid scale model for large eddy simulation [PDF]
We construct a new subgrid scale (SGS) stress model for representing the small scale effects in large eddy simulation (LES) of incompressible flows. We use the covariance tensor for representing the Reynolds stress and include Clark's model for the cross stress.
Rukiye Kara, Mine Çaglar
openaire +4 more sources
How well does a convection-permitting regional climate model represent the reverse orographic effect of extreme hourly precipitation? [PDF]
Estimating future short-duration extreme precipitation in mountainous regions is fundamental for risk management. High-resolution convection-permitting models (CPMs) represent the state of the art for these projections, as they resolve convective ...
E. Dallan +7 more
doaj +1 more source
Adaptive Wavelet Methods for Earth Systems Modelling
This paper reviews how dynamically adaptive wavelet methods can be designed to simulate atmosphere and ocean dynamics in both flat and spherical geometries.
Nicholas K.-R. Kevlahan
doaj +1 more source
A method for parameterising roughness and topographic sub-grid scale effects in hydraulic modelling from LiDAR data [PDF]
High resolution airborne laser data provide new ways to explore the role of topographic complexity in hydraulic modelling parameterisation, taking into account the scale-dependency between roughness and topography.
A. Casas, S. N. Lane, D. Yu, G. Benito
doaj +1 more source
Analysis of subgrid scale models
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
ABBA', ANTONELLA +2 more
openaire +2 more sources

