Flow patterns arrays

Qian and Bau [144] have analyzed such electroosmotic flow cells with embedded electrodes on the basis of the Stokes equation with Helmholtz-Smoluchowski boimdary conditions on the channel walls. They considered electrode arrays with a certain periodicity, i.e. after k electrodes the imposed pattern of electric potentials repeats itself An analytic solution of the Stokes equation was obtained in the form of a Eourier series. Specifically, they analyzed the electroosmotic flow patterns with regard to mixing applications. A simple recirculating flow pattern such as the one... 

A mixing time of only 2.9 s was derived [29], More complex flow patterns were determined than for all the arrays investigated so far. 

Knowledge of the flow patterns for RO systems is fundamental to the understanding of how an RO system functions. Arrays, passes, recycle, and multiple trains are terms used to describe an RO system that are discussed in this chapter. 

Sun, Z.F., 2001. Numerical simulation of flow in an array of in-line blunt boards Mass transfer and flow patterns, Chem. Eng. Sci., 56 1883-1896. 

Figure 10.4 Flow patterns in unwrapped array kneading discs with different offset angle. (From Ref. 29, courtesy of Mr. Ben Loomans, APV.)...

Qu et al. [2] found evidence of two kinds of unsteady flow boiling for 21 parallel microchannels measuring 231 x 713 xm. They observed in their parallel microchannel array either a global fluctuation of the whole two-phase zone for all the microchannels (Fig. 1) or chaotic fluctuations of the two-phase zone (Fig. 2) over-pressure in one microchannel and under-pressure in another. The individual microchannel mass flow rate was not controlled. Hetsroni et al. [3] created an experimental setup to study liquid-gas and liquid-vapor flow in parallel triangular microchannels with diameters of 103 to 161 p.m. They used a fast video camera coupled with a microscope through a Pyrex plate to record the flow patterns. They showed the influence of the injection method (plenum shape) and found evidence for the same inlet conditions. 

The AGT 5 is concerned with the thermal-hydraulics and mechanics of the core and core components. The contact forces between sub-assemblies distorted as a consequence of irradiation effects were investigated in the CHARDIS HI rig (Risley). The dynamic behaviour of core arrays during earthquakes was examined in the RAPSODBB test facility (Saclay). Flow patterns at the core outlet and between sub-assembly hexagonal wrapper tubes were simulated in the HIPPO test rig (Risley). 

Figure 27 Gas-solid flow patterns in fluidized beds with a tube array (A) for different times when a=45° and (B) for different settings when t=6.0 s. The settings include a square one a=0) and three triangular ones ( =30°, 45°, and 60°) from the left to right (bed width x thickness x height= 10 mm x 0.4 mm x 128 mm dp=0.1 mm,/ p=1440 kg/ m, tube diameter=40 mm). The tube material Is copper. Reprinted from Hou et al. (2015b) with permission from Elsevier.

Micro-jet arrays are usually associated with lower energy consumption rates than sprays generated by the special (HAGO) nozzle for the same flow rate. The liquid was pushed through a 0.5 mm stainless steel orifice plate to form the jets. The holes in the plate were laser drilled and were arranged in a circular pattern giving a radial... 

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