Visualization of the impact of water drops on a hot surface: effect of drop velocity and surface inclination |
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| Authors: | Gian Piero Celata Maurizio Cumo Andrea Mariani Giuseppe Zummo |
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| Affiliation: | (1) ENEA, Institute of Thermal-Fluid Dynamics, via Anguillarese 301, 00060 S. Maria di Galeria (Rome), Italy;(2) Università di Roma “La Sapienza”, Palazzo Baleani, Corso Vittorio Emanuele II, 244 00186 Rome, Italy |
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| Abstract: | The behaviour of one drop impinging on a hot surface by varying the surface temperature, the drop velocity and the position of the surface (horizontal and a inclined 45°) both at a temperature below and above the Leidenfrost temperature has been experimentally evaluated, estimating the temperature at which the drop rebounds. A large influence on the drop velocity has been evidenced. The inclination of the surface decreases the critical value of the temperature above which the surface is not rewetted. |
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