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    Rebounding suppression of droplet impact on hot surfaces: Effect of surface temperature and concaveness

    , Article Soft Matter ; Volume 15, Issue 5 , 2019 , Pages 1017-1026 ; 1744683X (ISSN) Jowkar, S ; Morad, M. R ; Sharif University of Technology
    Royal Society of Chemistry  2019
    Abstract
    When a droplet impinges on a hot surface it is crucial to increase the contact time or decrease the rebounding distance if the heat transfer between the droplet and the surface is important. This will be more sensitive when the temperature regime is above the Leidenfrost values. The focus of the present experimental study is on the maximum height of drop bouncing after impinging on flat and semi-cylindrical concave surfaces, in particular in terms of surface temperature. It is shown that the behavior of the lamella during the spreading to its maximum diameter has a considerable impact on the maximum height of the drop bouncing. For different impact Weber numbers the map of thermal versus... 

    Rebounding suppression of droplet impact on hot surfaces: Effect of surface temperature and concaveness

    , Article Soft Matter ; Volume 15, Issue 5 , 2019 , Pages 1017-1026 ; 1744683X (ISSN) Jowkar, S ; Morad, M. R ; Sharif University of Technology
    Royal Society of Chemistry  2019
    Abstract
    When a droplet impinges on a hot surface it is crucial to increase the contact time or decrease the rebounding distance if the heat transfer between the droplet and the surface is important. This will be more sensitive when the temperature regime is above the Leidenfrost values. The focus of the present experimental study is on the maximum height of drop bouncing after impinging on flat and semi-cylindrical concave surfaces, in particular in terms of surface temperature. It is shown that the behavior of the lamella during the spreading to its maximum diameter has a considerable impact on the maximum height of the drop bouncing. For different impact Weber numbers the map of thermal versus...