Results 31 to 40 of about 4,398,015 (289)

Non-Hydrostatic RegCM4 (RegCM4-NH): model description and case studies over multiple domains [PDF]

Geoscientific Model Development, 2021
We describe the development of a non-hydrostatic version of the regional climate model RegCM4, called RegCM4-NH, for use at convection-permitting resolutions. The non-hydrostatic dynamical core of the Mesoscale Model MM5 is introduced in the RegCM4, with
E. Coppola, P. Stocchi, E. Pichelli, J. A. Torres Alavez, R. Glazer, G. Giuliani, F. Di Sante, R. Nogherotto, F. Giorgi   +8 more
doaj   +1 more source

The Stability of the Solutions for a Porous Medium Equation with a Convection Term [PDF]

Discrete Dynamics in Nature and Society, 2018
This paper studies the initial-boundary value problem of a porous medium equation with a convection term. If the equation is degenerate on the boundary, then only a partial boundary condition is needed generally. The existence of the weak solution is proved by the monotone convergent method.
Huashui Zhan, Miao Ouyang
openaire   +3 more sources

Existence of Bounded Solutions for a Class of Degenerate Fourth-Order Elliptic Equations with Convection Terms

Mathematics
This paper deals with the existence of bounded and locally Hölder continuous weak solutions of the following nonlinear fourth-order Dirichlet problem: ∑|α|=1,2(−1)|α|DαAα(x,u,D1u,D2u)−Eα(x) |u|λ(pα−1) signu=f in Ω, where the coefficients Aα satisfy a ...
Salvatore D’Asero
doaj   +1 more source

Analysis of observation characteristic of FY-3 microwave hygrometer during an extreme short-term heavy precipitation process

暴雨灾害, 2020
Based on data of FY-3 satellite microwave hygrometer and conventional observation, microwave observational characteristics of convective clouds during a heavy precipitation event from Giuzhou to Hubei province in 2016 were analyzed. The results show that
Pingping ZHANG, shuangzhu XU, Liangpeng DONG, Mengmeng ZHANG   +3 more
doaj   +1 more source

Elliptic Problems with Superlinear Convection Terms

Journal of Differential Equations
In this manuscript we deal with elliptic equations with superlinear first order terms in divergence form of the following type \[ -\mbox{div}(M(x)\nabla u)= -\mbox{div}(h(u)E(x))+f(x), \] where $M$ is a bounded elliptic matrix, the vector field $E$ and the function $f$ belong to suitable Lebesgue spaces, and the function $s\to h(s)$ features a ...
Boccardo, Lucio, Buccheri, Stefano, Cirmi, Giuseppa Rita   +2 more
openaire   +5 more sources

Short-Term Prediction of Electricity Outages Caused by Convective Storms [PDF]

IEEE Transactions on Geoscience and Remote Sensing, 2019
Prediction of power outages caused by convective storms which are highly localised in space and time is of crucial importance to power grid operators. We propose a new machine learning approach to predict the damage caused by storms. This approach hinges identifying and tracking of storm cells using weather radar images on the application of machine ...
Karjalainen, Joonas, Jung, Alexander, Tervo, Roope   +3 more
openaire   +3 more sources

Convection in porous media and Legendre, Chebyshev Galerkin methods [PDF]

, 2005
The subject of thermal convection in fluid and porous media is investigated, coupled with the development of efficient spectral finite element methods to improve on the more commonly used techniques for these types of problems.
Hill, Antony Α., Hill, Antony A, Antony Hill   +2 more
core  

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

Advanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares, Nadège Bouchonneau, Christian Jochum, Donald Radford   +3 more
wiley   +1 more source

Existence and nonexistence of positive solutions of nonlinear elliptic equations involving singular term and convection term

Electronic Journal of Qualitative Theory of Differential Equations
This paper establishes the existence and nonexistence of positive solutions for a class of Dirichlet problems involving singular nonlinearities and gradient-dependent terms. The nonlinearities considered are subcritical in the Sobolev sense. Our approach
Anderson de Araujo, Hamilton Bueno, Kamila Madalena   +2 more
doaj   +1 more source

Thermal vibrational convection in near-critical fluids. Part 1. Non-uniform heating [PDF]

, 2006
A theoretical model describing the response of a single-phase near-critical fluid to small-amplitude, high-frequency translational vibrations is developed on the basis of the multiple-scale and averaging methods.
Vorobev, Anatoliy, Lyubimov, Dimitry, Mojtabi, Abdelkader, Zappoli, Bernard, Lyubimova, T., Vorobev, A., Lyubimov, D., Lyubimova, Tanya, Mojtabi, A., Zappoli, B.   +9 more
core   +1 more source