Fluids at Rest - Study 4ur Success
... In Tin II and III, the water stream coming out of the lowest hole reaches the farthest. This shows that the pressure exerted by liquid increases with depth. Also the pressure is acting perpendicular to the liquid surface. ...
... In Tin II and III, the water stream coming out of the lowest hole reaches the farthest. This shows that the pressure exerted by liquid increases with depth. Also the pressure is acting perpendicular to the liquid surface. ...
Introductory Chemical Engineering
... of a trademark claim, the designations have been printed with initial capital letters or in all capitals. The authors and publisher have taken care in the preparation of this book, but make no expressed or implied warranty of any kind and assume no responsibility for errors or omissions. No liabilit ...
... of a trademark claim, the designations have been printed with initial capital letters or in all capitals. The authors and publisher have taken care in the preparation of this book, but make no expressed or implied warranty of any kind and assume no responsibility for errors or omissions. No liabilit ...
Impact of Wind Generation on ERCOT Operations
... The proposal is to use Zonal congestion deployments of BES to control CSC flow as a proxy limit when the Transient stability limit is reached. This will instruct Resources in both West and North to move similar to when the CSC is Thermally limited and therefore be the quickest and most effective met ...
... The proposal is to use Zonal congestion deployments of BES to control CSC flow as a proxy limit when the Transient stability limit is reached. This will instruct Resources in both West and North to move similar to when the CSC is Thermally limited and therefore be the quickest and most effective met ...
Physical Vapor Deposition
... – In a time dt, molecules that are within vdt of the orifice will exit. – If molecules are uniformly distributed within the volume V, then the fraction of molecules which are within striking distance in dt of the orifice with an exit angle of ϕ is vdt cos ϕ dAe/V. – The fraction of molecules enterin ...
... – In a time dt, molecules that are within vdt of the orifice will exit. – If molecules are uniformly distributed within the volume V, then the fraction of molecules which are within striking distance in dt of the orifice with an exit angle of ϕ is vdt cos ϕ dAe/V. – The fraction of molecules enterin ...
Chapter 1
... mass; light molecules escape through the hole more quickly than heavier ones. The effusing gas is therefore enriched in the light component. This effect is the basis of the gaseous-diffusion technique used at Oak Ridge to separate uranium isotopes for the first atomic bombs. It is convenient to rewr ...
... mass; light molecules escape through the hole more quickly than heavier ones. The effusing gas is therefore enriched in the light component. This effect is the basis of the gaseous-diffusion technique used at Oak Ridge to separate uranium isotopes for the first atomic bombs. It is convenient to rewr ...
Bernoulli's principle
In fluid dynamics, Bernoulli's principle states that for an inviscid flow of a non-conducting fluid, an increase in the speed of the fluid occurs simultaneously with a decrease in pressure or a decrease in the fluid's potential energy. The principle is named after Daniel Bernoulli who published it in his book Hydrodynamica in 1738.Bernoulli's principle can be applied to various types of fluid flow, resulting in what is loosely denoted as Bernoulli's equation. In fact, there are different forms of the Bernoulli equation for different types of flow. The simple form of Bernoulli's principle is valid for incompressible flows (e.g. most liquid flows and gases moving at low Mach number). More advanced forms may in some cases be applied to compressible flows at higher Mach numbers (see the derivations of the Bernoulli equation). Bernoulli's principle can be derived from the principle of conservation of energy. This states that, in a steady flow, the sum of all forms of energy in a fluid along a streamline is the same at all points on that streamline. This requires that the sum of kinetic energy, potential energy and internal energy remains constant. Thus an increase in the speed of the fluid – implying an increase in both its dynamic pressure and kinetic energy – occurs with a simultaneous decrease in (the sum of) its static pressure, potential energy and internal energy. If the fluid is flowing out of a reservoir, the sum of all forms of energy is the same on all streamlines because in a reservoir the energy per unit volume (the sum of pressure and gravitational potential ρ g h) is the same everywhere.Bernoulli's principle can also be derived directly from Newton's 2nd law. If a small volume of fluid is flowing horizontally from a region of high pressure to a region of low pressure, then there is more pressure behind than in front. This gives a net force on the volume, accelerating it along the streamline.Fluid particles are subject only to pressure and their own weight. If a fluid is flowing horizontally and along a section of a streamline, where the speed increases it can only be because the fluid on that section has moved from a region of higher pressure to a region of lower pressure; and if its speed decreases, it can only be because it has moved from a region of lower pressure to a region of higher pressure. Consequently, within a fluid flowing horizontally, the highest speed occurs where the pressure is lowest, and the lowest speed occurs where the pressure is highest.