A numerical solution for the drainage of two-dimensional packed beds

✍ Scribed by W.V. Pinczewski; W.B.U. Tanzil

• Publisher: Elsevier Science
• Year: 1981
• Tongue: English
• Weight: 433 KB
• Volume: 36
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(81)80091-7

✦ Synopsis

A numerical procedure which allows the calculation of the position of the gas-liquid interface during the drainage of a two-dimensional packed bed is described. The calculations are compared with drainage experiments conducted on a laboratory scale packed bed and the agreement between the two results is shown to be excellent. The residual volume of liquid which remains undrained when the gas-liquid interface first reaches the drain point increases with increasing drainage rate and decreasing hydraulic conductivity of the bed. Computational difficulties which can arise at very high and very low drainage rates are discussed and a smoothing procedure which overcomes this problem is described. INlltODUCTfON