Analysis of mixing distribution in an engine-like configuration |
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Authors: | Mehmet E Arıcı Timothy T Maxwell |
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Affiliation: | 1. Department of Mechanical Engineering, Karadeniz Technical University, 61080 Trabzon, Turkey;2. Department of Mechanical Engineering, Texas Tech University, Lubbock, TX 79409, U.S.A. |
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Abstract: | A study of gaseous fuel/air mixing in a simplified two-dimensional axisymetrical cylinder shaped chamber with centrally located orifice inlet condition is performed using multi-dimensional computational fluid dynamic analysis. The gaseous fuel concentration distribution formed by in-cylinder charge motion is also predicted. The effect of swirl on global mixing is examined, and the optimal swirl is determined for a particular value of engine speed. A measure of global uniformity is defined and used to gain information about the fuel concentration distribution within the chamber. The computational results show that the flow field has a great effect on charge mixing. The charge mixing is satisfactorily close to the desirable mixing distribution when the fuel charge is prescribed properly. Copyright © 2003 John Wiley & Sons, Ltd. |
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Keywords: | gaseous fuel mixing distribution multi-dimensional modelling |
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