Biot's coefficient wikipedia
WebBiot's breathing or ataxic breathing, is an abnormal pattern of breathing characterized by variable tidal volume, random apneas, and no regularity. It is named for Camille Biot, … WebNov 24, 2008 · ABSTRACT. One of the most significant parameters in hydromechanical analyses is Biot coefficient. This coefficient which was presented by Biot, is used …
Biot's coefficient wikipedia
Did you know?
WebA proper correlation of the Biot-Willis coefficient controlling the bulk volumetric strain is developed using the data available from various sources in a manner to meet the required endpoint ... WebAug 25, 2024 · Linear poroelastic theory is often used to relate the total stresses to pore pressure of a porous medium (Chen et al. 2004).The effective stress coefficient (Biot’s …
WebJun 8, 2009 · Abstract. Deformation of a hydrocarbon reservoir can ideally be predicted by estimating the effective stress acting on it. The effective stress is the difference between the total stress and a fraction (effective stress coefficient) of pore pressure. The effective stress coefficient is thus relevant for studying reservoir deformation and for evaluating 4-D … WebMay 14, 2024 · The Biot or the Biot–Willis effective stress coefficient (Biot 1941; Biot and Willis 1957) is an essential geomechanical parameter of compressible and deformable porous rocks defined at a macroscopic scale.
http://www.cage.uh.edu/rql/Oral%20Presentation_2005%20Meeting/patzek_oral.pdf WebJun 20, 2024 · Normally, the value for overburden stress is approximately 1 psi/ft of depth. The reservoir pressure must be measured or estimated. Biot’ s constant is usually 1.0, but can be less than 1.0 on occasion. Table 1- Table Range Of Values For Young Modulus Poroelastic theory is often used to estimate the minimum horizontal stress.
WebBiot’s equations are assumed to hold not only in continuous regions, but also at a discontinuity. By replacing the discontinuity surface with a thin transition layer, in which the properties of the medium change rapidly yet continuously, we arrive at interface con- ditions that are identical to the open-pore conditions of Der- esiewicz and Skalak.
The Biot number is defined as: $${\displaystyle \mathrm {Bi} ={\frac {h}{k}}L}$$ where: $${\displaystyle {k}}$$ is the thermal conductivity of the body [W/(m·K)]$${\displaystyle {h}}$$ is a convective heat transfer coefficient [W/(m ·K)]$${\displaystyle {L}}$$ is a characteristic length [m] of the … See more The Biot number (Bi) is a dimensionless quantity used in heat transfer calculations, named for the eighteenth-century French physicist Jean-Baptiste Biot (1774–1862). The Biot number is the ratio of the thermal resistance for … See more • Convection • Fourier number • Heat conduction See more The value of the Biot number can indicate the applicability (or inapplicability) of certain methods of solving transient heat transfer problems. For example, a Biot number smaller … See more An analogous version of the Biot number (usually called the "mass transfer Biot number", or $${\displaystyle \mathrm {Bi} _{m}}$$) is also used in mass diffusion processes: See more simpson pressure washer ratingsWebMay 17, 2024 · The Biot coefficient is a parameter that is encountered in the theory of classical poroelasticity, dealing with the mechanics of a fluid-saturated porous medium with elastic grains and an elastic skeletal structure. simpson pressure washer pump repairWebMay 14, 2024 · The subsurface rock formations may contain predominantly the intragranular matrix porosity in the sedimentary rocks and predominantly the fracture porosity in the … razer wireless keyboard whiteWebBiot is a small, bowl-shaped lunar impact crater located in the southern reaches of the Mare Fecunditatis.It is named after French astronomer Jean-Baptiste Biot. "Biot … razer wireless mouse best buyWebwhere α = K H α = K H is the Biot-Willis coefficient introduced above and 1 M = 1 R − K H2 1 M = 1 R − K H 2 is the constrained specific storage coefficient. It is seen that, in either form of the constitutive relationship, only three independent mechanical properties are … simpson pressure washersWebBiot ("BIological robOT"), the name given to an extraterrestrial biological robot in the fictional universe of Arthur C. Clarke 's novel Rendezvous with Rama (1973). Biot, a … razer wireless mouse dpi changeWebMar 1, 2015 · The mathematic expression of Biot’s effective stress is: \sigma_ {\text {eff}} = \sigma_ {\text {total}} - \alpha \cdot p , (1) where σ eff is the effective stress, MPa; σ total is the total stress, MPa; α is a fraction called Biot’s coefficient, and p is the pore pressure, MPa. The traditional method for measuring Biot’s coefficient ... simpson pressure washer review