What is the movement and filtering of fluids through porous materials?
What is the movement and filtering of fluids through porous materials?
The basic law governing the flow of fluids through porous media is Darcy’s Law, which was formulated by the French civil engineer Henry Darcy in 1856 on the basis of his experiments on vertical water filtration through sand beds.
What is fluid porosity?
Porosity = Volume of Fluid Divided by Total Volume. A porosity of 1 is all fluid, no solid. A porosity of 0 is all solid, no fluid.
What is porous media permeability?
The permeability of a porous medium is a measure of the ease with which a fluid will flow through the medium; the higher the permeability, the higher the flow rate for a given hydraulic gradient. The permeability is a statistical average of the fluid conductivities of all the flow channels in the solid body.
What is porous medium in filtration?
Porous media combustion (PMC), also known as filtration combustion, pertains to the heterogeneous interaction between two different media, usually a solid and a gas. The theory of filtration combustion involves a new type of flame with exothermic chemical transformation during fluid motion in a porous matrix.
What is the meaning of porous medium?
A porous medium can be defined as a solid, or collection of solid bodies, with sufficient open space in or around the solids to enable a fluid to pass through or around them.
In what ways is porous material useful?
Porosity gives materials important properties, such as low density meaning a light weight, and a large surface area to store molecules in the pores. Moreover, the pore size can act as a sieve to separate molecules.
What is permeability fluid flow?
Permeability is a property of porous materials that is an indication of the ability for fluids (gas or liquid) to flow through them. Fluids can more easily flow through a material with high permeability than one with low permeability.
What are the characteristics of porous materials?
The main characteristics of porous metals are: low density, high permeability in open structures, high energy absorption and large specific surface area [1,3].
