AM05-22-001 Asymptotic formula for velocity of a vortex ring and its variational principle A general formula is established for translation speed of an axisymmetric vortex ring whose core is not necessarily thin. We rely on Lamb's method of calcu... Y Fukumoto - Japan Society of Fluid Mechan...
The fluid from the reservoir is allowed to flow through the micro channel. Light rays are made incident on the micro channel at different angles of incidence. The velocities at which the two incident angles refract normal to the channel are calculated using formula. From this the velocity of ...
of infusion velocity (R) was analyzed.They were as following:when 0 5S1 0,R=10 S ml/h;when S=1 0,R=100 S ml/h;when 1 0S2 0,R= 200 S ml/h ;when S=2 0,R=200 S 2 ml/h;when S2 0,R=200×2 5 2 ml/h.We put forward a formula for regulating infusion velocity:V=...
A formula for the fluid-solids drag coefficient for a multiparticle system is derived from a Richardson-Zaki type velocity-voidage correlation. The formula compares favorably with the Ergun equation in the void fraction range of 0.5-0.6 and correctly reduces to a formula for the single-particle dr...
The angular velocity of fluid motion around the vertical axis is a dominant parameter for determining fluid flow patterns and particle trajectories in a rotational flow field. In this paper, an angular velocity formula, based on the angular-impulse momentum principle coupled with the Rankine vortex ...
In the developing flow region, the flow consists of a turbulent boundary layer next to the invert and an ideal-fluid flow region above. In the ideal-fluid region, the velocity (called the free-stream velocity) may be deduced from the Bernoulli equation: (A4.2)Vmax=2g(H1−zo−dcosθ)...
hydrodynamics that the time constant for the approach of an object moving in a fluid to its terminal velocity is proportional to the effective mass, and we also know that the effective mass is proportional to the difference between the mass of the object and the mass of fluid it displaces....
Forces on the surface of small ellipsoidal particles immersed in a linear flow field Knowledge of the forces which a fluid motion exerts on the surface of suspended material is important for many processes in which the particles are broken ... S Blaser - 《Chemical Engineering Science》 被引量...
The velocity limit at which the CHF trend with jet velocity changes seem to be different for different studies, which implies this limit is a function of fluid properties, operating conditions, or geometrical parameters. Further studies are needed to find relations for the velocity limit. Read mor...
Stokes law is often used to calculate the terminal velocity of particles or bubbles in a fluid medium. Let us assume that the density of the particles is greater than that of the fluid medium, so the particle falls down. The downward force acting on the particle is due to gravity and upw...