Mass transfer at geometrically dissimilar rough surfaces | Zendy

Tantirige S. | Zendy; Trass O. | Zendy

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Mass transfer at geometrically dissimilar rough surfaces

Author(s) -

Tantirige S.,

Trass O.

Publication year - 1984

Publication title -

the canadian journal of chemical engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.404

H-Index - 67

eISSN - 1939-019X

pISSN - 0008-4034

DOI - 10.1002/cjce.5450620407

Subject(s) - reynolds number , mass transfer , surface finish , schmidt number , surface roughness , perpendicular , materials science , geometry , square (algebra) , rough surface , mechanics , duct (anatomy) , optics , mathematics , composite material , physics , turbulence , medicine , pathology

Mass transfer rates at rough surfaces composed of V‐shaped grooves perpendicular to the direction of flow have been measured in a 25 mm square duct by an electrochemical technique. Roughness heights ranged from 50 to 700 μm, at various pitch/height ratios. The Reynolds number was varied from 2000 to 85,000, at Schmidt numbers of 1600 and 3600. Transfer enhancement depended on both size and shape of the roughness elements; rates four times greater than smooth surface values were observed.

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