Flow field in the rotating electrolyser

✍ Scribed by R.E.W. Jansson

• Publisher: Elsevier Science
• Year: 1978
• Tongue: English
• Weight: 421 KB
• Volume: 23
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(78)80015-2

✦ Synopsis

Thefluidvelocity fieldin therotatingelectrolyser has beencomputed for avarietyofconditions. It is shown that there is strong coupling between the orthogonal velocity components, the volumetric flowrate and the angular velocity. Reversing radial and tangen (ial flows are predicted, particularly in the entry region, which agrees with laser-Doppler measurements previously reported. Outside the Betty region (i/a Z 25) there is good agreement between experimental and theoretical velocity profiles, which approach the predictions of first order theory within 15% for reasonable flowrates, making design studies of the eleetrolyser simple. Greek ; " 0 NOMENCLATURE semi-gap static pressure &Vi dimensionless static pressure volumetric llowrate radius uF/a, dimensionlffs radius V,a/v, Reynolds number radial velocity i/V,, dimensionless radial velocity tangential velocity C/V,, dimensionless tangential velocity normal velocity G/V,, dimensionless normal velocity Q/4na' (ON)"' distance from the midplane a+ dimensionless distance from the midplane