Mesh structure

Mesh generation features. Structured mesh, interactive mesh generation. Structured mesh. Structured mesh multiblock. Unstructured mesh, multiblock interface to PATRAN and IDEAS. Unstructured. 

Figure 9-6DD. ACS knitted mesh structured packing. Used by permission of ACS Industries, Inc., Separations Technology Group, Bull. B-129 (1992).

Preliminary Sizing for ACS Industries Series Woven X/S Knitted Wire Mesh Structured Packing... 

Fig. 13.6 (a) CNT array with lateral ballast resistors to the square grid, (b) honeycomb patterned mesh structure of CNT emitters (courtesy W. I. Milne). 

Current observational data seem to confirm this picture when the red shifts of a large number of galaxies were measured, it turned out that their three-dimensional distributions have large voids, and this confirms a cellular structure of matter distribution. However, the question of the objectivity of a cellular or mesh structure is a subtle one since the eye tends to organize patterns even in a random distribution of points. 

Objective criteria which clearly distinguish cluster structures from cellular and mesh structures have been developed by S. F. Shandarin (1983) [65] on the basis of percolation theory, whose usefulness for differentiating structures was conjectured by Ya.B. The percolation of cellular- or mesh-structure objects on a union of r-neighborhoods begins to occur at smaller r than in the case of a system of independent, randomly located points or clusters with the same (average) density. 

Hgim ftuS Wire-mesh structured packing . <0) Saber wire gauze packing BX (6) Sulzer wire gauze packing CY. IParta a and o, courtesy of Sober Chemteeh.)... 

Figure M (Continued) Wtre>mesh structured packings.

Figure 8.16 (Continued) Typical efficiency characteristics of packed towers, (c) Typical efficiency characteristics for wire-mesh structured packings (d) example of efficiency characteristics, measured for randem packing, that deviate from those in parts a and c. (Fart d from J. S. Eckert and L. F. Walter, Hydrocarb. Proc. Pet. Ref, February 1964. Reprinted courtesy of Hydrocarbon Processing.)...

An alternative explanation, preferred by the author, is in terms of mechanisms postulated by Kurtz et al. (31a). As liquid rate increases, more vapor is entrained down the bed. This drops efficiency. Because structured packings permit far less lateral movement of fluids than random packings, far more vapor will be carried downward. The vapor entrainment will be most detrimental to efficiency when fluid lateral movement is restricted most. This can be expected with narrow flow channels (e.g., wire-mesh structured packings), at high liquid rates and high pressure. 

For wire-mesh structured packings, due to the excellent wetting characteristics of the surface, as well as for corrugated-sheet structured packings at above 85 percent of flood, the packing surface is fully wetted, i.e.,... 

Figure n.i Published HETP data for Koch-Sulzer CY wire-mesh structured packing (see Table 11.2 for curve identification), (a) Plotted against vapor load (i) plotted against liquid load. 

Koch-Sulzer CY wire-mesh structured packing ... 

The cell construction ensures a high electrode area per volume unit together with small electrode distances, which, even with poorly conductive electrolytes and/or at low current densities, results in good space-time yields. A high turbulence of the flowing electrolyte is due to the mesh structure and ensures high conversion rates. 

Following the analysis of Qmax for different cylindrical mHPs, Figure 9 it is clear, that copper sintered powder as a wick has some advantages to compare with another wicks in the field of gravity, when the evaporator is disposed above the condenser. Advanced copper sintered powder wick (curve 1, Figure 9) has some advantages to compare with such wicks as mesh structure, grooves, fiber bundle. 

Figure 10. Cross section of flat copper niHP with a copper sintered powder (obtained by the cylindrical heat pipe flattening) (a), mesh structure (b) and wire bundle (c)...

Theoretical simulation of mHPs with different wick structures (sintered powder, mesh structure, wire bundle) is an efficient tool to perform the comparisons of mHP efficiency. Experimental verification of mHP parameters proves validity of the simulation software. 

In the three-step process, the thickness of the SiC layer was monitored as a function of time in the carburization and BEN steps, and its thickness reached a maximum at 3-5 min of the BEN treatment [267]. A mesh structure was also observed. The hillock (protrusion) structure was extended along [110] or [110], and hence the boundaries between the hillock structures were considered to be anti-phase boundaries between the anti-phase domains of 3-SiC. 

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