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

Juhar, M Z F and Mohamad, M Sofwan and Illias, Suhaimi and Amin, N A M and Hussain, S and Ani, Mohd Hanafi (2023) Maximum spreading diameter of a water droplet after impact on a hot surface beyond Leidenfrost temperature. In: 8th International Conference on Applications and Design in Mechanical Engineering (ICADME 2023), 4th - 5th September 2023, Kuala Lumpur, Malaysia.

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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.

Item Type:	Proceeding Paper (Other)
Uncontrolled Keywords:	Maximum spreading, droplet, hot surface, Leidenfrost, high speed camera
Subjects:	T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General) > TA401 Materials of engineering and construction
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User:	Dr Mohd Hanafi Ani
Date Deposited:	19 Dec 2023 10:02
Last Modified:	05 Jan 2024 16:03
URI:	http://irep.iium.edu.my/id/eprint/108850

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