Mass transfer from spheres submerged in Newtonian and non-Newtonian fluids

✍ Scribed by Y. Kawase; J.J. Ulbrecht

• Publisher: Elsevier Science
• Year: 1983
• Tongue: English
• Weight: 650 KB
• Volume: 28
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(83)85058-0

✦ Synopsis

Mass transfer from spheres immersed in Newtonian and power-law fluid flows in the high Reynolds number region is discussed using a modified pnetration model. By defining appropriate characteristic velocity and length, the proposed model in which a velocity gradient at the transfer surface is taken account of can be used to evaluate the rate of mass transfer from a sphere in complicated practical flow situations. The proposed model compares reasonably well with previously reported experimental data and correlahons for mass transfer from a sphere in a fluid flowing at uniform approach velocity, in a fixed or fluid&d bed, and in a stirred tank. Furthermore, good agreement is found between the model and the available experimental data and correlation for mass transfer from a rotating sphere.