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The Analytical Modeling of Finite-Length Homogonous Micro-Combustor for a Hydrogen-Oxygen Mixture with Wall Temperature Effects

Published online by Cambridge University Press:  11 April 2016

S. A. Fanaee
S. A. Fanaee*
Affiliation:
Department of Mechanical Engineering University of Birjand Birjand, Iran
*
*Corresponding author (sab.famech@gmail.com)
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Abstract

This paper analytically investigates the reaction phenomenon in micro-combustors using a two-dimensional model. The length of micro-combustor is considered at finite length that makes a better physical model than other works. The micro-combustor medium is divided into three integral zones composed of preheat, reaction and post flame where the governing equations are solved using the matching conditions of neighboring zones. The reaction zone thickness is considered as a variable and predicted by an iterative solution. In order to validate the model, normalized magnitude of maximum temperature is compared with published computational data for different values of Peclet number that shows an acceptable agreement that confirms the accuracy of the predicted data. Since a higher wall temperature causes the reaction to be faster, increasing the normalized wall temperature will result to reduce reaction zone thickness.

Keywords

Homogonous micro-combustionMathematical modelFinite-length chamberWall temperature effects
Type
Research Article
Information
Journal of Mechanics , Volume 32 , Issue 5 , October 2016 , pp. 631 - 642
Copyright
Copyright © The Society of Theoretical and Applied Mechanics 2016 

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