March 31, 2021 Dataset Closed Access

Stergiou, Y.; Eckert, K.; Schwarzenberger, K.

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  <dc:creator>Stergiou, Y.</dc:creator>
  <dc:creator>Eckert, K.</dc:creator>
  <dc:creator>Schwarzenberger, K.</dc:creator>
  <dc:date>2021-03-31</dc:date>
  <dc:description>Hele-Shaw cells are a frequently used tool in various fields of chemical technology, and in environmental and biomedical engineering. The flow conditions near the inlet of a radial Hele-Shaw cell significantly affect the outcome of its technological applications. The present work combines Computational Fluid Dynamics (CFD) and micro-Particle Image Velocimetry (μPIV) to explain the entrance phenomena, i.e. flow detachment and vortex generation, in radial Hele-Shaw cells. The experiments show that the flow detachment is determined by the inlet flow Reynolds number, Re. Two-dimensional numerical simulations were employed to further investigate the role of the gap width, w to inlet diameter, D aspect ratio, w/D. The resulting flow regime map is divided by a transitional Re number, Ret, that depends on the aspect ratio. A further parametric study examining how Re and the aspect ratio affect the reattachment length yields an empirical correlation in power-law form. Finally, the impact of the inlet's geometrical features is briefly examined. The current work can be used as a design guide for future radial HS engineering applications.</dc:description>
  <dc:identifier>https://rodare.hzdr.de/record/902</dc:identifier>
  <dc:identifier>10.14278/rodare.902</dc:identifier>
  <dc:identifier>oai:rodare.hzdr.de:902</dc:identifier>
  <dc:relation>url:https://www.hzdr.de/publications/Publ-32487</dc:relation>
  <dc:relation>url:https://www.hzdr.de/publications/Publ-32479</dc:relation>
  <dc:relation>doi:10.14278/rodare.901</dc:relation>
  <dc:relation>url:https://rodare.hzdr.de/communities/rodare</dc:relation>
  <dc:rights>info:eu-repo/semantics/closedAccess</dc:rights>
  <dc:subject>Hele-Shaw cell</dc:subject>
  <dc:subject>flow separation</dc:subject>
  <dc:subject>laminar flow</dc:subject>
  <dc:subject>reattachment length</dc:subject>
  <dc:subject>CFD</dc:subject>
  <dc:subject>μPIV</dc:subject>
  <dc:title>Data for: Entrance effects in a radial Hele-Shaw cell: numerical and experimental study</dc:title>
  <dc:type>info:eu-repo/semantics/other</dc:type>
  <dc:type>dataset</dc:type>
</oai_dc:dc>