Flow in sudden enlargement square duct with multiple normal jets | ||||
| ERJ. Engineering Research Journal | ||||
| Article 5, Volume 26, Issue 4, October 2003, Page 75-106 PDF (7.34 MB) | ||||
| DOI: 10.21608/erjm.2003.82593 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| M. M. El- Mayit | ||||
| Mech. Power Eng. Dept. , faculty of Engineering Minufiya University , Shebin El- Kom , Egypt | ||||
| Abstract | ||||
| A turbulent non-symmetrical and multiple normal jets through flow in sudden enlargement square duct is studied experimentally. The geometry of the enlargement is a duct with an area ratio of ( AR= 5.09). The effect of jets location , number of jets , inlet Reynolds number as well as the injection ratio on the pressure recovery coefficient are investigated .The inlet Reynolds number ( Rein ), injection flow rate ratio (©) and the dimensionless downstream distance (X) are chosen to cover the following range. 5.3 x 104 < Rein = 10.7 x 104, 0.0 < © < 0.478 and 0.64 < X < 1.75. The experimental results show that, sleight change of the injection ratio, inlet Reynolds number or number of jets has an important effect on pressure recovery coefficient , interaction between main and injected flow and also the recirculation zone | ||||
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