nonuniform flow

nonuniform flow

[¦nän′yü·nə‚fȯrm ′flō]
(fluid mechanics)
Fluid flow which does not have the same velocity at all points in a medium, at a given instant.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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Suppose that the measurement of pollutant concentration c in a nonuniform flow stream is aligned with longitudinal distance, 1.0 (km) total length and 1.0 (m) depth.
However, the simplified input models are inapplicable to the PWR accidents where nonuniform flow happens among the U-tubes under NC.
In [6,7], the numerical techniques are used to solve the nonuniform flow of stream water quality model with the advection-dispersion-reaction equations.
Equation of motion for a small rigid sphere in a nonuniform flow, Physics of Fluids 26(4): 883-889.
In the rotor frame, it is generally believed that the nonuniform flow field at the impellers outlet caused by wake effect and blade loading generates a periodic flow pattern.
When considering highly viscous materials, this geometric constraint is likely to cause not only equipment (extruder, gear pump, and/or multiplier) failure due to increased pressure drops originating in the compressive section, but is also likely to induce the previously described flow instabilities due to the nonuniform flow paths and residence times inside the multiplier die.
However, there is a unique reliability problem for its flow measurement within microfluidic channel in these systems, where imprecision in the geometry of microchannel will cause variation in performance, such as nonuniform flow distribution [11].
In water quality modelling for nonuniform flow stream, the general governing equations used are the hydrodynamic model and the dispersion model.
To deal with the nonuniform flow resistance effect, the porous media zone with half real tubes on both sides of the porous media zone is applied (see Figure 2).
The analysis identified nonuniform flow through the hoppers as well as temperature gradients of up to 80[degrees] C/144 [degrees] F from the center to the outside.
The objective of this study was to develop an acoustical measuring technique to determine the ventilation rate through a ventilation opening (1.1 m) with a nonuniform flow pattern at low average air speeds (0-0.5 m/s), as mainly occurs in sections with natural ventilation.
Nonuniform flow around the core pin causes the pin to shift during the injection and pack phases of the cycle, and this shifting causes wall-thickness variation, resulting in both structural and cosmetic defects.