March 31, 2021 Dataset Closed Access

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

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        "orcid": "0000-0002-1729-4426", 
        "name": "Stergiou, Y.", 
        "affiliation": "HZDR, TUD"
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        "orcid": "0000-0002-9671-8628", 
        "name": "Eckert, K.", 
        "affiliation": "HZDR, TUD"
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        "orcid": "0000-0002-4866-483X", 
        "name": "Schwarzenberger, K.", 
        "affiliation": "HZDR, TUD"
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        "identifier": "10.14278/rodare.901", 
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    "title": "Data for: Entrance effects in a radial Hele-Shaw cell: numerical and experimental study", 
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    "keywords": [
      "Hele-Shaw cell", 
      "flow separation", 
      "laminar flow", 
      "reattachment length", 
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      "\u03bcPIV"
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    "description": "<p>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 (&mu;PIV) 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&#39;s geometrical features is briefly examined. The current work can be used as a design guide for future radial HS engineering applications.</p>", 
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