The velocity and stability of large porosity fluctuations in homogeneous fluidized systems

✍ Scribed by J. Verloop; P.M. Heertjes; L.A. Lerk

• Publisher: Elsevier Science
• Year: 1974
• Tongue: English
• Weight: 462 KB
• Volume: 29
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(74)80109-0

✦ Synopsis

The propagation velocity of a porosity disturbance has been calculated by assuming equilibrium on both sides of the wave. This quasi steady state approach simplifies the equations considerably but does not lead to a lesser accuracy. Waves with large amplitudes can be attenuated while rising up through the bed. The stability has been analysed and the results lead to a better explanation of the response of a fluidixed bed to a step change in the fluid velocity.