Moderate Reynolds number axisymmetric jet development downstream an extended conical diffuser: Influence of extension length

@inproceedings{Hirtum2009ModerateRN,
  title={Moderate Reynolds number axisymmetric jet development downstream an extended conical diffuser: Influence of extension length},
  author={Annemie Van Hirtum and Xavier Grandchamp and Xavier Pelorson},
  year={2009}
}
Low-velocity (bulk velocity of 4.4 m/s) and moderate Reynolds (7350) axisymmetrical jet development is studied by hot-film single sensor anemometry. The jet issues from a conical convergent-divergent diffuser with uniform extension (diameter 25 mm). Decreasing the length-to-diameter ratio of the extension tube from 20 down to 0.4 is shown to alter severely the mean velocity profile at the tube outlet from Blasius to top-hat whereas turbulence intensities increases from 6 up to 50%. Next, the… CONTINUE READING
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