In hydrodynamics and hydrostatics, the pressure gradient (typically of air but more generally of any fluid) is a physical quantity that describes in which...

Blood pressure (BP) is the pressure of circulating blood against the walls of blood vessels. Most of this pressure results from the heart pumping blood...

mechanics, the pressure-gradient force is the force that results when there is a difference in pressure across a surface. In general, a pressure is a force...

In fluid dynamics, an adverse pressure gradient is a pressure gradient in which the static pressure increases in the direction of the flow. Mathematically...

pressure is defined as the external pressure required to be applied so that there is no net movement of solvent across the membrane. Osmotic pressure...

effect. The pressure-gradient force is the force that results when there is a difference in pressure across a surface. In general, a pressure is a force...

measurement of the pressure gradient between the WHVP and the free hepatic venous pressures (FHPV), and thus is an estimate of the pressure gradient between the...

Pore pressure gradient is a dimensional petrophysical term used by drilling engineers and mud engineers during the design of drilling programs for drilling...

Depending on the definition of the term, there may also be an applied pressure gradient in the flow direction. The Couette configuration models certain practical...

increasing pressure is known as flowing in an adverse pressure gradient. The boundary layer separates when it has travelled far enough in an adverse pressure gradient...

of gas molecules. A gradient in field strength causes a force due to the magnetic pressure gradient called the magnetic pressure force. In SI units, the...

moving along a pressure gradient. Contrary to popular belief, however, the forces acting in this case do not originate from the lower pressure side (the vacuum)...

pipes with an oscillating pressure gradient finds applications in blood flow through large arteries. The imposed pressure gradient is given by ∂ p ∂ x = −...

to the lower pressures, the effective pressure vector force is contrary to the pressure gradient, whence the minus sign before the gradient vector. Friction...

Cerebral perfusion pressure, or CPP, is the net pressure gradient causing cerebral blood flow to the brain (brain perfusion). It must be maintained within...

is caused by pressure gradients. Air is accelerated in direction of the velocity if the pressure goes down. Thus the decrease of pressure is the cause...

such as gravity, are balanced by a pressure-gradient force. In the planetary physics of Earth, the pressure-gradient force prevents gravity from collapsing...

the pressure gradient force is balanced by the Coriolis effect. The direction of geostrophic flow is parallel to the isobars, with the high pressure to...

that substance or collection. A gradient is the change in the value of a quantity; for example, concentration, pressure, or temperature with the change...

flow only in the horizontal direction (along the pressure-gradient direction), and the pressure gradient and viscous effects are in balance. Then, the Navier-Stokes...

In the (less general) integral form, the volumetric flux and the pressure gradient correspond to the ratios: q = Q A {\displaystyle q={\frac {Q}{A}}}...

y^{2}}}} where ν {\displaystyle \nu } is the kinematic viscosity. The pressure gradient does not enter into the problem. The initial, no-slip condition on...

low-pressure areas in advance of their associated cold fronts. The stronger the pressure difference, or pressure gradient, between a high-pressure system...

the 19th century, the full extent of the large scale interaction of pressure-gradient force and deflecting force that in the end causes air masses to move...

Coronary perfusion pressure (CPP) refers to the pressure gradient that drives coronary blood pressure. The heart's function is to perfuse blood to the...

The pressure in the reservoir keeps increasing and then exceeds the pressure at compressor exit, thus resulting in an adverse pressure gradient in exit...

gradient (osmotic gradient) that draws water into the cells from the adjacent xylem. This creates turgor pressure, also known as hydrostatic pressure...

elevation as well, and these variations have relevance in the context of pressure gradient force and its effects. However, the vertical variation is especially...

because of pressure gradients. Ptp = Palv – Pip. Where Ptp is transpulmonary pressure, Palv is alveolar pressure, and Pip is intrapleural pressure. Since...

mass transfer and bulk flow, is the movement of fluids down a pressure or temperature gradient. As such, mass flow is a subject of study in both fluid dynamics...