Vortex structure and heat transfer in a diffusion combustion field with circulating flow
by Hideo Kawahara, Tatsuo Nishimura
International Journal of Energy Technology and Policy (IJETP), Vol. 6, No. 1/2, 2008

Abstract: A numerical study was performed to examine the vortical structures for combusting flow from a two-dimensional bluff-body slot burner in the transitional recirculating flow. The numerical results support the flow visualisation results for C₃H₈ combustion by Chin and Tankin [Chin, L.P. and Tankin, R.S. (1991) 'Vortical structures in a 2-d vertical bluff-body burner', Combustion Science and Technology, Vol. 80, pp.207–229]. We identify the fuel effect on the dynamic vortical structures inside the flame for C₃H₈ and CH₄ fuels. The Reynolds number for the inner slot fuel flow is varied from 10–250 at a fixed Reynolds number of 400 for the outer slot air flow. As a result of the study on a two-dimensional bluff-body burner, it was possible to reproduce the dynamic motions of vortical structures obtained by Chin and Tankin visualisation experiment. In the low Reynolds number region, vortex structures in the recirculating region gives large effect in the flame form. In addition, it was confirmed that independently of the fuel variety, the flow at the bluff-body aft comes into three shape varieties.

Online publication date: Mon, 04-Feb-2008

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Energy Technology and Policy (IJETP):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com