Heat transfer peculiarities in separated flow past an oblique rib under different external turbulence

Терехов, В. И.; Yarygina, Nadezhda I.; Smulsky, Ya. I.

doi:10.1134/s0869864308020042

Cited by 6 publications

(2 citation statements)

References 12 publications

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“…There are many different designs of compact heat exchangers providing an increased level of turbulence and organizing detachments and secondary near-wall flows. Experimental results on flat rib streamlining by the turbulent flow at a change in the angle of orientation relative to the flow from 50 to 90° are shown in [11] for the low and high levels of turbulence. The general method of heat transfer intensification is application of surfaces with different shapes of pressing and corrugation.…”

Section: Introductionmentioning

confidence: 99%

Experimental studies of influence of the turbulent flow structure on temperature distribution in a compact heat exchanger

Perepelitsa

2008

Thermophys. Aeromech.

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Results of experimental investigation of temperature distribution over the surface of a complex heat exchanger (the Frenkel packing type) are presented. Measurements were carried out in the air flow between two sheets with triangular corrugations directed at 90° to each other. Measurements were carried out by the microthermocouples glued on the heated outer surface. The effect of Reynolds numbers, a gap between corrugated sheets, and substitution of one corrugated sheet by the smooth one on temperature distribution over the heat exchanger surface in the turbulent air flow is analysed. According to the performed experiments, there is a significant effect of a gap and applied perturbations on the type of temperature distribution over the perimeter of a heated cell.

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Section: Introductionmentioning

confidence: 99%

Experimental studies of influence of the turbulent flow structure on temperature distribution in a compact heat exchanger

Perepelitsa

2008

Thermophys. Aeromech.

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“…Together with visualization of the flow pattern, some additional information about the flow structure is provided by oil visualization of surface. In [11], the detached flows on the model surface were visualized by the oil film, this allowed estimation for the size and character of the formed detached flow.…”

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confidence: 99%