Modeling and simulation of the effects of axial diffusion on fuel-air mixing lengths in micro-power systems

Dellimore, K., Veeraragavan, A. and Cadou, C. (2006). Modeling and simulation of the effects of axial diffusion on fuel-air mixing lengths in micro-power systems. In: Collection of technical papers: 44th AIAA Aerospace Sciences Meeting. 44th AIAA Aerospace Sciences Meeting 2006, Reno, NV, United States, (16263-16273). 9 – 12 January 2006.

Author Dellimore, K.
Veeraragavan, A.
Cadou, C.
Title of paper Modeling and simulation of the effects of axial diffusion on fuel-air mixing lengths in micro-power systems
Conference name 44th AIAA Aerospace Sciences Meeting 2006
Conference location Reno, NV, United States
Conference dates 9 – 12 January 2006
Proceedings title Collection of technical papers: 44th AIAA Aerospace Sciences Meeting
Journal name Collection of Technical Papers - 44th AIAA Aerospace Sciences Meeting
Place of Publication Reston, VA, United States
Publisher American Institute of Aeronautics and Astronautics
Publication Year 2006
Sub-type Fully published paper
ISBN 9781563478079
Volume 21
Start page 16263
End page 16273
Total pages 11
Language eng
Abstract/Summary An analytical model for fuel-oxidizer mixing that incorporates both axial and radial diffusion is developed to predict the mixing length - the distance required for fuel and oxidizer to mix via diffusive transport - in axisymmetric micro-power system configurations. The results are compared with mixing length estimates obtained for the case of mixing by radial diffusion only i.e. the traditional Burke-Schumann theory. The mixing length predictions are also compared with the results of inviscid CFD simulations of low Reynolds number fueloxidizer mixing in axisymmetric micro-power system configurations. The results indicate that axial diffusion becomes important for Re < 20 and imposes a limit on the extent to which it is possible (from a fuel-air mixing point of view) to miniaturize a power system.
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Conference Paper
Collection: School of Mechanical & Mining Engineering Publications
 
Versions
Version Filter Type
Citation counts: Scopus Citation Count Cited 0 times in Scopus Article
Google Scholar Search Google Scholar
Created: Mon, 04 Jun 2012, 21:46:04 EST by Rose Clements on behalf of School of Mechanical and Mining Engineering