The mechanical behavior of 3D multi-layered braided composite tubes was analyzed using a multi-scale modelling approach. Considering the braiding parameters and the fiber volume fraction of the composite tubes, firstly a unit-cell of the composites was determined based on the motion of yarn carriers and modeled using TEXGEN software. The unit-cell was imported into finite element software to ca...

Based on the Doppler weather radar and surface observations, key mesoscale systems features of rainstorm structure during period extreme precipitation in Henan province 20 July 2021 are investigated. The results show that a nearly meso-α-scale West Low Vortex (WHLV) near Songshan Mountain, front, horizontal shear convergence line lower troposphere two strong low-level jets (LLJs) were main trig...

Outdoor sound prediction is both a societal concern and a scientific issue. This paper deals with numerical simulations of micrometeorological (temperature and wind) fields for environmental acoustics. These simulations are carried out using the reference meso-scale meteorological model at the Meteo-France weather agency (Meso-NH). Meso-NH predictions at very fine scales (up to 3 m), including ...

Abstract A new model for the multi-scale simulation of solute transport in concrete is presented. The employs plurigaussian simulations to generate stochastic representations micro- and meso-structures. These are idealised as two-phase medium comprising mortar matrix pores micro-structure, large aggregate particles meso-structure. generated meso-structures employed a finite element analysis ste...

Granular materials have a complex collective behavior based on simple interactions between grains. The global stems from dynamic rearrangements in the micro-structure. local increase (resp. decrease) of density generates jamming unjamming). In this paper, instabilities form localized bursts kinetic energy are studied at both micro-scale (i.e. grain scale) and meso-scale cluster scale). defined ...

The Alkali-Silica Reaction (ASR) in concrete is a chemical reaction, which produces an expansive product, generally called “ASR gel”, and causes cracking damage over time. Affecting numerous infrastructures all around the world, ASR has been topic of much research past decades. In spite that, many aspects this reaction are still unknown. numerical-investigation paper, three-dimensional meso-str...

Abstract We use estimates of meso-scale vertical velocity and co-located cloud measurements from the second Next-Generation Aircraft Remote Sensing for Validation campaign (NARVAL2) in tropical North Atlantic to show observed impact motion on clouds. Our results not only confirm previously untested hypotheses about role dynamics being non-negligible determining cloudiness, but go further that a...

This chapter introduces the EMMS model for gas-solid two-phase flow and the motive for this series of work. The EMMS model focuses on the mesoscale phenomenon of particle clustering, correlating it to the micro-scale of single particles and the macro-scale of the vessel operating conditions, material properties, and boundary conditions by analyzing the compromise between dominant mechanisms to ...