settling velocity वाक्य
उदाहरण वाक्य
मोबाइल
- In 1904, Allen Hazen showed that the efficiency of a sedimentation process was a function of the particle settling velocity, the flow through the tank and the surface area of tank.
- Settling velocity W s of a sand grain ( diameter d, density 2650 kg / m 3 ) in water at 20 �C, computed with the formula of Soulsby ( 1997 ).
- Wash load grains tend to be very small ( mostly clays & silts but some fine sands ) and therefore have a small settling velocity, being kept in suspension by the flow turbulence.
- The increase in biomass concentration that is possible because of the high settling velocity of the aerobic sludge granules and the absence of a final settler result in a significant reduction in the required footprint.
- For larger particles ( turbulent particle Reynolds numbers ), fall velocity is calculated with the turbulent Dietrich ( 1982 ) compiled a large amount of published data to which he empirically fit settling velocity curves.
- If the particle is falling in the viscous fluid under its own weight, then a terminal velocity, or settling velocity, is reached when this frictional force combined with the buoyant force exactly balances the gravitational force.
- The particles'settling velocity in centrifugation is a function of their size and shape, centrifugal acceleration, the volume fraction of solids present, the density difference between the particle and the liquid, and the viscosity.
- Because particles settle downward, for all cases where the particles are not neutrally buoyant or sufficiently light that this settling velocity is negligible, there is a net negative concentration gradient as one goes upward in the flow.
- If the upwards velocity is much less than the settling velocity, but still high enough for the sediment to move ( see saltating ( jumping up into the flow, being transported a short distance then settling again ).
- If the concentration of ice nuclei is seeded such that the resulting cloud particle density is less than that for the natural case, the cloud particles should grow larger due to less water vapor competition and attain higher settling velocities.
- If the particles are falling in the viscous fluid by their own weight, then a terminal velocity, also known as the settling velocity, is reached when this frictional force combined with the buoyant force exactly balance the gravitational force.
- When the tassel is mature and conditions are suitably warm and dry, anthers on the tassel anemophilous ( dispersed by wind ), and because of its large settling velocity, most pollen falls within a few meters of the tassel.
- When the fluid becomes more viscous due to smaller grain sizes or larger settling velocities, prediction is less straight forward and it is applicable to incorporate Stokes Law ( also known as the frictional force, or drag force ) of settling.
- In this equation " w s " is the sediment settling velocity, " g " is acceleration due to gravity, and " D " is mean sediment diameter . \ nu is the kinematic viscosity of water, which is approximately 1.0 x 10 " 6 m 2 / s for water at 20 �C.
- In an ideal rectangular sedimentation tank, in the settling zone, the critical particle enters at the top of the settling zone, and the settle velocity would be the smallest value to reach the sludge zone, and at the end of outlet zone, the velocity component of this critical particle are Vs, the settling velocity in vertical direction and Vh in horizontal direction.
- In an ideal rectangular sedimentation tank, in the settling zone, the critical particle enters at the top of the settling zone, and the settle velocity would be the smallest value to reach the sludge zone, and at the end of outlet zone, the velocity component of this critical particle are Vs, the settling velocity in vertical direction and Vh in horizontal direction.
- The gravitational effect, or settling velocity determines the location of deposition for finer sediments, whereas a grain's internal angle of friction determines the deposition of larger grains on a shore profile . " The relatively strong onshore stroke of the wave forms an eddy or vortex on the lee side of the ripple, provided the onshore flow persists, this eddy remains trapped in the lee of the ripple.
- If these fine particles remain dispersed in the water column, Stokes law applies to the settling velocity of the individual grains, although due to sea water being a strong electrolyte bonding agent, flocculation occurs where individual particles create an electrical bond adhering each other together to form flocs . " The face of a clay platelet has a slight negative charge where the edge has a slight positive charge, when two platelets come into close proximity with each other the face of one particle and the edge of the other are electrostatically attracted . " Flocs then have a higher combined mass which leads to quicker deposition through a higher fall velocity, and deposition in a more shoreward direction than they would have as the individual fine grains of clay or silt.
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