A 2-D numerical study on flow characteristics for four different types annular dump combustor models release_c5vcxq7bsrdevc3dbcokqvgwn4

by Tridibesh Das, Somnath Chakrabarti

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In this paper, a numerical study on flow characteristics of fluid passing through four different annular dump combustor configurations has been carried out. The two dimensional, steady differential equations for conservation of mass and momentum are solved for a fixed Reynolds number of 200, aspect ratio (AR) of 2 and 40% central restriction. The variations of streamline contour, average static pressure distribution and average stagnation pressure distribution have been studied in detail. After overall study, it may be concluded that sudden expansion with central restriction and fence (Model-2) performs better in terms of average static pressure distribution along the axis and average stagnation pressure drop variation at a section while the Model-1 (sudden expansion with central restriction only) becomes more effective for corner region mixing. The detailed model wise mathematical correlations are also presented in predicting different flow characteristic parameters.
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Year   2015
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