2013 1(12)

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   Short abstract

 

Pages:

90 - 96

Language:

RU

Ref.:

9


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2013_1(12)_16.pdf

 

 

RIVULET AND DROPS FLOW ON THE SLOPE OF THE HYDROPHOBIC SURFACE

Nakoryakov V.E., Ovchinnikov V.V., Dekhtyar R.A.

Institute of Thermophysics SB RAS, Novosibirsk, Russia


Citation:

Nakoryakov, V.E., Ovchinnikov, V.V. and Dekhtyar, R.A., (2013) Rivulet and drops flow on the slope of the hydrophobic surface, Modern Science: Researches, Ideas, Results, Technologies, Iss. #1(12), PP. 90 - 96.


Keywords:

flow patterns; the meandering; rivulet and drops; hydrophobic surface


Abstracts:

The purpose of this study is experimental simulation of processes occurring in the absorption on heat transfer surfaces in transient regimes. Flow of rivulet and drops on an inclined isothermal hydrophobic surface at constant flow rate was investigated. The liquid flow rate was varied from 0,1 to 1,0 ml/s. By results of machining of gained photo-videos materials the map of flow regimes is made and the characteristic structures of a flow are revealed. For the surface with a negative slope the following flow patterns were observed: the drop pattern, the drop-rivulet pattern, the rivulet-drop pattern, stable meandering pattern, and unstable meandering pattern. It is shown, that for drop pattern and rivulet-drop pattern the direction of rivulet movement and the rivulet shape depend on non-uniformity of flow rate along the rivulet.


References:

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