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- Centre National de la Recherche ScientifiqueFR98 papers
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24 papers · 1 filter
Efficiency of a smoke curtain in a ventilated tunnel
Alexandre Narcisse, Olivier Vauquelin, Éric Casalé +1
Smoke curtains are typically used in public-access buildings in connexion with ventilation effects without considering a crossed design. This paper aims to understand the fire smok…
Simulation of Single-Phase Natural Circulation within the BEPU Framework: Sketching Scaling Uncertainty Principle by Multi-Scale CFD Approaches
Haifu Huang, Jorge Perez, Nicolas Alpy +1
In order to enhance safety, nuclear reactors in the design phase consider natural circulation as a mean to remove residual power. The simulation of this passive mechanism must be q…
Principle of virtual action in continuum mechanics
Henri Gouin
We present the principle of virtual action as a foundation of continuum mechanics. Used mainly in relativity, the method has a useful application in classical mechanics and places…
Noether theorem in fluid mechanics
Henri Gouin
Invariance theorems in analytical mechanics, such as Noether's theorem, can be adapted to continuum mechanics. For this purpose, it is useful to give a functional representation of…
Influence of lunisolar tides on plants. Parametric resonance induced by periodic variations of gravity
Henri Gouin
Recent experiments conducted in the International Space Station highlight the apparent periodicity of leaf oscillations and other biological phenomena associated with rhythmic vari…
Variational formulation for models of shear shallow water flows and ideal turbulence
Sergey Gavrilyuk, Henri Gouin
The shallow water equations without shear effects are similar to the gas dynamics equations with a polytropic equation of state. When the shear effects are taken into account, the…