An experimental study of diverging angle effect on separation location in two - dimensional diffuser
Engineering and Technology Journal,
2009, Volume 27, Issue 5, Pages 157-170
AbstractThe present study deals with flow of air in a two dimensional diffuser. A number
of test models of diffusers with different angles raging between (0◦ - 30◦) were
manufactured. The air was implemented as working fluid in the test with different
Reynolds number (6.85 × 104 – 1.64 × 105 ) at the duct inlet.
The study includes a number of experiments for air velocity and static pressure
measurement. The results showed the following:
1- Separation Phenomenon is obtained at divergent angles ( θ > 8◦) .
2- The location of separation delays by decreasing the divergent angle and by
increasing of Reynolds number.
3- The static pressure recovery coefficient decreases with the increasing diffuser area
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