Abstract
Three-dimensional flow close to the stagnation point of an impinging jet cell was studied by means of three-segment electrodiffusion probes. The total current and the directional characteristics providing the wall velocity gradient and the flow direction respectively were measured at different distances from the stagnation point. The linear dependence of the wall velocity gradient on this distance was confirmed in the stagnation zone. The normal velocity component was evaluated from the flatness of the directional characteristics. The values of the normal velocity component were rather higher than those corresponding to the linear change of the velocity gradient and the dimensionless ratio of the probe radius to distance. The deviation appearing on the normal velocity component was explained by geometrical imperfections of the probes due to the technology of fabrication.
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References
Arkam C; Bouet V; Gabrielli C; Maurin G (1994) QC Electrogravimetry with controlled Hydrodynamics. J Electrochem Soc 141: L103
Baleras F; Deslouis C; Tribollet B; Sobolik V (1994) A three-segment electrodiffusion probe in axisymmetric flow with stagnation and separation. J Appl Electrochem 24: 676
Bewersdorff HW; Hoyer K; Gyr A; Sobolik V (1996) Simultaneous wall shear rate measurements by a three-segmented electrodiffusion probe and laser-Doppler-anemometry. Exp Fluids accepted.
Chin DT; Tsang CH (1978) Mass transfer to an impinging jet electrode. J Electrochem Soc 125: 1461
Cochran WG (1934) The flow due to a rotating disc. Proc Camb Phil Soc 30: 365–75
Diem CB; Orazem ME (1994) Influence of velocity on corrosion of copper in alkaline chloride solutions. Corrosion Nace 50: 290
Hanratty TJ; Campbell JA (1983) Measurement of the Wall Shear Stress in Fluid Mechanics Measurements (edited by Goldstein). Hemisphere, Washington
Homann F (1936) Der E:influß großer Zähigkeit bei der Strömung um den Zylinder und um die Kugel. ZAMM 16: 153
Levich VG (1962) Physicochemical Hydrodynamics. Prentice-Hall, Englewood Cliffs, NJ
Opekar F; Beran P (1976) The rotating disk electrode. J Electroanal Interf Electrochem 6, no 1
Reiss IP; Hanratty TJ (1962) An experimental study of the unsteady nature of the viscous sublayer. AIChE J 8: 245
Sobolik V; Benabes B; Cognet G (1995) Study of Taylor-Couette flow using a three-segment electrodiffusion probe. J Appl Electrochem 25: 441
Sobolik V; Pauli J; Onken U (1991) Three-segment electrodiffusion probe for velocity measurement. Exp Fluids 11: 186
Sobolik V; Wein O; Gil O; Tribollet B (1990) Three-segment electrodiffusion probes for measuring velocity fields close to a wall. Exp Fluids 9: 43
Wein O (1990) Concentration boundary layer under general steady-flow conditions. Coll Czech Chem Comm 55: 2404
Wein O; Sobolik V (1987) Theory of direction sensitive probes for electrodiffusion measurement of wall velocity gradients. Coll Czech Chem Comm 52: 2169
Wein O; Sobolik V (1989) Segmented electrodiffusion probes: Simultaneous measurement of shear rate and normal flow component. Coll Czech Chem Comm 54: 3043
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This work was supported by the grant no. 101(9511421 awarded by the Grant Agency of the Czech Republic.
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Baleras, F., Bonet, V., Deslouis, C. et al. Flow measurement in an impinging jet cell with three-segment microelectrocles. Experiments in Fluids 22, 87–93 (1996). https://doi.org/10.1007/BF01893309
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DOI: https://doi.org/10.1007/BF01893309