Publication Cover
Numerical Heat Transfer, Part A: Applications
An International Journal of Computation and Methodology
Volume 39, 2001 - Issue 1
32
Views
5
CrossRef citations to date
0
Altmetric
Original Articles

EFFECTS OF LOBE GEOMETRY ON THE MIXING FLOW IN MULTILOBE MIXERS

Pages 61-77 | Published online: 29 Oct 2010
 

Abstract

This study is concerned with a numerical investigation of the mixing flow in multilobe mixers. Predictions are obtained using a finite-volume method which incorporates a second-order difference scheme. The irregular boundaries are fitted by curvilinear nonorthogonal grids and the grid points are arranged in the collocated manner. A method is described to generate suitable three-dimensional grids to cover both the lobe region and the mixing duct. Computations are undertaken to examine the effects of lobe geometry on the mixing performance. Results indicated that the convex lobe contour can lead to stronger vortex flow and, thus, better mixing because of its large slope. As for the geometry of the lobe trailing edge, a sinusoidal shape with wide peak region gives rise to well-organized vortices and the mixing performance is enhanced. Also revealed is the mechanism which, resulting in efficient mixing in the mixer, is clearly identified.

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.