Publication

Pressures on a stepped spillway by M. Sánchez-Juny, E. Bladé and J. Dolz

Anton Schleiss, Stéphanie Joëlle André
2008
Journal Articles

Abstract

M. Sánchez-Juny, E. Bladé And J. Dolz, Journal of Hydraulic Research 2007, 45(4), 505–511

Official source

https://infoscience.epfl.ch/entities/publication/45232e24-8b89-4752-be8a-58a2e28b565a

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Anton Schleiss, Stéphanie Joëlle André
2008
Journal Articles

Abstract

M. Sánchez-Juny, E. Bladé And J. Dolz, Journal of Hydraulic Research 2007, 45(4), 505–511

Official source

https://infoscience.epfl.ch/entities/publication/45232e24-8b89-4752-be8a-58a2e28b565a

About this result

Related concepts (5)

Pressure

Pressure (symbol: p or P) is the force applied perpendicular to the surface of an object per unit area over which that force is distributed. Gauge pressure (also spelled gage pressure) is the pressure relative to the ambient pressure. Various units are used to express pressure. Some of these derive from a unit of force divided by a unit of area; the SI unit of pressure, the pascal (Pa), for example, is one newton per square metre (N/m2); similarly, the pound-force per square inch (psi, symbol lbf/in2) is the traditional unit of pressure in the imperial and US customary systems.

Vapor pressure

Vapour pressure or equilibrium vapor pressure is the pressure exerted by a vapor in thermodynamic equilibrium with its condensed phases (solid or liquid) at a given temperature in a closed system. The equilibrium vapor pressure is an indication of a liquid's thermodynamic tendency to evaporate. It relates to the balance of particles escaping from the liquid (or solid) in equilibrium with those in a coexisting vapor phase. A substance with a high vapor pressure at normal temperatures is often referred to as volatile.

Partial pressure

In a mixture of gases, each constituent gas has a partial pressure which is the notional pressure of that constituent gas as if it alone occupied the entire volume of the original mixture at the same temperature. The total pressure of an ideal gas mixture is the sum of the partial pressures of the gases in the mixture (Dalton's Law). The partial pressure of a gas is a measure of thermodynamic activity of the gas's molecules. Gases dissolve, diffuse, and react according to their partial pressures but not according to their concentrations in gas mixtures or liquids.

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