Flow of second-order fluids over an enclosed rotating disc

✍ Scribed by Sharma, S. K. ;Sharma, H. G.

• Publisher: Springer
• Year: 1965
• Tongue: English
• Weight: 504 KB
• Volume: 15
• Category: Article
• ISSN: 0003-6994
• DOI: 10.1007/bf00411563

✦ Synopsis

This paper is devoted to a study of the ilow of a second-order fluid (Ilowing with a small mass rate of symmetrical radial outflow m, taken negative for a ner radial inflow) over a finite rotating disc enclosed within a coaxial cylinderical casing. The effects of the second-order terms are observed to depend upon two dimensionless parameters ~1 and ~2. Maximum values ~1 and ~2 of the dimensionless radial distances at which there is no recirculation, for the cases of ner radial outflow (m > 0) and ner radial inflow (rn < 0) respectively, decrease wittl an increase in the second-order effects [represented by T(= -1 + *2)]. The velocities at ~1 and ~~ as well as at some other fixed radii have been calculated for different T and the associated phenomena of no-recirculation/recirculation discussed. The change in flow phenomena due to a reversal of the direction of ner radial fiow has also been studied. The moment on the rotating disc increases with T.