Results 61 to 70 of about 1,004 (184)

Lyapunov Exponential Stability of the Shallow Water Equations in Trapezoidal Channel

Pan-American Journal of Mathematics
This paper solves the problem of the exponential stability in L2-norm of Saint-Venant equations linear hyperbolic system for a non-prismatic and non-rectangular channel.
Seydou Sore, Babacar Mbaye Ndiaye, Yacouba Simpore   +2 more
doaj   +1 more source

The study of the perturbation of normal stresses in the rod of the I-section in the zone of application of the load

MATEC Web of Conferences, 2018
The study of the implementation of the Saint-Venant principle for restrained rods of the I-section exposed to various loads at its free end is carried out. When using the program complex LIRA SAPR are defined zones of disturbance of normal stresses.
Saiyan Sergey, Paushkin Alexander
doaj   +1 more source

Modelling of Flexible Adhesives in Simple Mechanical States with the Use of the Darijani-Naghdabadi Strain Tensors and Kirchhoff-de Saint-Venant Elastic Potential. [PDF]

Polymers (Basel), 2021
Szeptyński P, Gams M, Kwiecień A.
europepmc   +1 more source

Sulla sesta distorsione elementare di Volterra per un cilindro cavo omogeneo e isotropo di altezza finita con carico alla Saint Venant

Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2008
In this work we consider the sixth elementary Volterra's distortion for a circular hollow, homogeneous, elastic, isotropic cylinder, to analyze the load acting on the bases as a Saint Venant characteristic external stress.
Pecoraio, Massimo, Laserra, Ettore, Bochicchio, Ivana   +2 more
doaj   +1 more source

Evaluating the effects of preprocessing, method selection, and hyperparameter tuning on SAR-based flood mapping and water depth estimation [PDF]

Natural Hazards and Earth System Sciences
Flood mapping and water depth estimation from Synthetic Aperture Radar (SAR) imagery are crucial for calibrating and validating hydraulic models. This study uses SAR imagery to evaluate various preprocessing (especially speckle noise reduction), flood ...
J.-P. Travert, J.-P. Travert, C. Goeury, C. Goeury, S. Boyaval, S. Boyaval, V. Bacchi, F. Zaoui   +7 more
doaj   +1 more source

Modelo hidrodinámico completo para riego por melgas

Tecnología y ciencias del agua, 2011
Se presenta un modelo numérico para riego por melgas basado en el acoplamiento interno de las ecuaciones de Saint-Venant y Richards, el cual permite describir las fases de avance, almacenamiento, consumo y recesión del riego por melgas.
Heber Saucedo, Manuel Zavala, Carlos Fuentes   +2 more
doaj  

Formal derivation of a new sediment transport model using a multiscale procedure: Numerical Validation

Partial Differential Equations in Applied Mathematics
We study in this work structures formed under a unidirectional flow. The main problem that addresses sediment transport by aquatic flow. We present the formal derivation of a new sediment transport model by using a multiscale procedure in time and space.
Julien Zongo, Jean De Dieu Zabsonre, Brahima Roamba   +2 more
doaj   +1 more source

SAINT-VENANT TYPE ESTIMATE FOR THE WAVE EQUATION

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2002
Bu çalışmada hızı azalan bir dalga denklemi için Uzaysal Azalım Kestirimi elde edilmiştir. Yük bölgesinden uzaklaşıldıkça son etkilerin, en azından kısa zaman aralıkları için çok hızlı bir şekilde azaldığı görülmüştür.
METİN YAMAN, Ö. FARUK GÖZÜKIZIL
doaj   +1 more source

A new model for shallow viscoelastic free-surface flows forced by gravity on rough inclined bottom

ESAIM: Proceedings and Surveys, 2014
A thin-layer model for shallow viscoelastic free-surface gravity flows on slippery topographies around a flat plane has been derived recently in [Bouchut-Boyaval, M3AS (23) 2013]. We show here how the model can be modified for flows
Boyaval Sébastien
doaj   +1 more source

Real-time correction of channel-bed roughness and water level in river network hydrodynamic modeling for accurate forecasting. [PDF]

Sci Rep, 2023
Chen Y, Cao F, Cheng W, Liu B, Yu P.
europepmc   +1 more source