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  5. Maximum spreading diameter of a water droplet after impact on a hot surface beyond Leidenfrost temperature
 
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Maximum spreading diameter of a water droplet after impact on a hot surface beyond Leidenfrost temperature

Journal
Journal of Physics: Conference Series
ISSN
17426588
Date Issued
2023-01-01
Author(s)
Juhar M.Z.F.
Muhammad Sofwan Mohamad
Universiti Malaysia Perlis
Suhaimi Illias
Universiti Malaysia Perlis
Nasrul Amri Mohd Amin
Universiti Malaysia Perlis
Suhaila Hussain
Universiti Malaysia Perlis
Ani M.H.
DOI
10.1088/1742-6596/2643/1/012017
Abstract
The impact of liquid droplets on heated surfaces are relevance across a range of applications. The maximum spreading diameter of water droplet during impact on hot surface was experimentally studied. The surface was made of aluminium. The diameter and height of the aluminium block was 70.0 mm and 30.0 mm, respectively. During experiment, the test surface was heated beyond Leidenfrost temperature. A high-speed video camera was used to capture the droplet images from the first impact until the droplet reached maximum spreading condition. The frame rate was set to be 2,000 fps. Distilled water was used as the test liquid. The impact height was set to be about 65.0 mm. From the high-speed images analysis, the droplet diameter was found to be approximately 4.5 mm. The measured droplet maximum spreading diameters were found to have a good agreement with theoretical calculation.
Funding(s)
Ministry of Higher Education, Malaysia
Subjects
  • droplet | high speed ...

File(s)
research repository notification.pdf (4.4 MB)
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