Laplace Pressuredoi:10.1007/978-0-387-48998-8_786Laplace pressure drop The surface curvature associated driving force for capillary fluid transport. Surface-Directed Capillary Flow SystemsSpringer US
压力治疗用于治疗水肿和其它下肢静脉和淋巴疾病已经有数个世纪,其是简单下肢静脉溃疡的标准治疗方法。Laplace定律可以用于计算或估计绷带下压力(Sub-bandage pressure),即绷带向肢体施加的压力水平。本文将解释Laplace方程的建立,以及如何用其在临床实践中估算绷带下压力。 绷带所...
Findings: Experiments confirm that the balance of external forces must be completed by the force acting on the syringe piston. The overpressure on the piston has an impact on the drops via the Laplace pressure. A master curve between the mean curvature and the maximal volume of the pendant dro...
Here, we present a microfluidic droplet trap that takes advantage of the net Laplace pressure force generated when a droplet is differentially constricted. Mathematical simulations were first used to understand the working range of the component; followed by finite element modeling using the CFD softwar...
[ny]; // 定义密度 float pressure[nx][ny]; // 定义压力 // 7、 MRT模型参数float M[9][9] = { { 1, 1, 1, 1, 1, 1, 1, 1, 1}, {-4, -1, -1, -1, -1, 2, 2, 2, 2}, { 4, -2, -2, -2, -2, 1, 1, 1, 1}, { 0, 1, 0, -1, 0, 1, -1, -1, ...
The form of the law of Laplace most often used in hemodynamics gives the relation between transmural pressure and the stress in the wall in organs with a wall thickness h. We here use the Cauchy stress formulation, which is defined as the ratio of the normal (perpendicular) force acting on...
For equal-sized spherical grains, the tensile force FCap pulling the grains together is calculated as: (30)FCap=2πRσLVsinϕsinϕ+τ−ΔPπR2sin2ϕ where R is the particle radius, Δ P is the Young-Laplace pressure (Eq. 5) with high negative values (tensile forces) for ...
The Law of LaPlace describes the factors that determine left ventricular wall stress, which is a major determinant of myocardial oxygen demand.Enlarge Left ventricular wall stress is the force acting against the myocardial cells. This is directly proportional to the left ventricular pressure and ...
Using molecular dynamics (MD) simulations, a new approach based on the behavior of pressurized water out of a nanopore (1.3–2.7 nm) in a flat plate is developed to calculate the relationship between the water surface curvature and the pressure difference across water surface. It is found ...
1Introduction High-end mechanical equipment, such as high-power gas turbines, diesel engines, high-pressure reciprocating compressors, and large centrifugal pumps, are the core power equipment of nuclear power, petrochemicals, shipbuilding, and other industries. The development of fault monitoring, diagno...