دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: any law relating to the pressure, temperature, or volume of a gas. generalised viscosity cone n: a plot of calibration coefficient versus a modified expression of Reynolds number.

n: a smooth flow of fluid in which no turbulence or cross flow of fluid particles occurs between adjacent stream lines. See also Reynolds number.

n: fluid elements flowing along fixed streamlines which are parallel to the walls of the channel of flow. In laminar flow, the fluid moves in plates or sections with a differential velocity across the frontwhich varies from zero at the wall to a maximum towa

fluid flowing at a lower rate with elements of the fluid flowing in fixed streamlines. Laminar friction is a function of NRe (Reynolds number). For laminar flow, the Fanning fracition factor = 16/NRe.

n: the type of fluid can describe Reynolds number,according to the test,below 2000 is laminar fluid,and above 4000 is turbulent fluid. Between 2000 and 4000 ,that is transition .

n: a dimensionless number defined as Re =ruD/m Where D = inside diameter of the pipe u = mean flow velocity r = density of the fluid m= dynamic viscosity, all in consistent units.

n: A demensionless number,which be used to judge the flowing condition of the fluid .Its code is Re.



an experimental number used in fluid flow to predict the flow velocity at which the flow regime moves from laminar flow through a transition range and into turbulent flow. It is the dimensionless ratio of inertial forces to viscous forces in flowing fluid

n: the erratic, nonlinear flow of a fluid, caused by high velocity. Characterized by random eddying flow patterns superimposed on the general flow progressing in a given direction.

n: A type of fluid flow characterized by swirling or chaotic motion as the fluid moves along the flow path. This is a preferred flow regime for mud removal during primary cementing because it is perceived to result in better removal of mud, especially of mud

non laminar flow, usually above a Reynolds number of about 3000. The Blasius equation estimates the friction factor for NRe values less than 100,000 as fB = 0.0791 / NRe0.25.