Impact, runoff and drying of wind-driven rain on a window glass surface: Numerical modelling based on experimental validation

Blocken, Bje Bert; Carmeliet, JE Jan

doi:10.1016/j.buildenv.2014.11.006

Cited by 19 publications

(8 citation statements)

References 41 publications

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“…An understanding of the maximum spreading of drop impact is key to controlling the drop dynamics in these applications (Rioboo, Tropea & Marengo 2001;Yarin 2006). For example, in the case of raindrop impact on soil or a building, the wetted area for liquid transport into the substrate is directly related to the maximum spreading (Erkal, D'Ayala & Sequeira 2012;Blocken & Carmeliet 2015).…”

Section: Introductionmentioning

confidence: 99%

Universal rescaling of drop impact on smooth and rough surfaces

et al. 2015

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The maximum spreading of drops impacting on smooth and rough surfaces is measured from low to high impact velocity for liquids with different surface tensions and viscosities. We demonstrate that dynamic wetting plays an important role in the spreading at low velocity, characterized by the dynamic contact angle at maximum spreading. In the energy balance, we account for the dynamic wettability by introducing the capillary energy at zero impact velocity, which relates to the spreading ratio at zero impact velocity. Correcting the measured spreading ratio by the spreading ratio at zero velocity, we find a correct scaling behaviour for low and high impact velocity and, by interpolation between the two, we find a universal scaling curve. The influence of the liquid as well as the nature and roughness of the surface are taken into account properly by rescaling with the spreading ratio at zero velocity, which, as demonstrated, is equivalent to accounting for the dynamic contact angle.

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Section: Introductionmentioning

confidence: 99%

Universal rescaling of drop impact on smooth and rough surfaces

et al. 2015

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“…Droplet evaporation is ubiquitous in various engineering applications, natural phenomena, and pathological situations, ranging from spray combustion in the internal combustion engines [1], drying of raindrops on the surface of building materials [2], to the spread of virus-laden droplets during the COVID-19 pandemic [3]. Understanding the detailed droplet evaporation dynamics helps to accurately predict the evaporation rate and the droplet lifetime, and is beneficial to the advancement of many fields of science and technology.…”

Section: Introductionmentioning

confidence: 99%

Droplet evaporation in finite-size systems: Theoretical analysis and mesoscopic modeling

et al. 2022

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“…While there exist models describing the hygrothermal behaviour of various types of building façades [5e10]; most do not include the exterior effects of WDR such as individual raindrop splashing, pooling and wetting patterns caused by runoff. The works taking this into account include the concept CFD-HAM (heat-air-moisture) model by Blocken et al [11], a simplified numerical model for runoff [12], a raindrop impact and evaporation model [13] and the HAM model with first order runoff, developed by Van den Brande et al [14]. Another area of focus with relation to this problem is the acquisition of appropriate datasets for use in validation of the various models mentioned above, such as the work by Nore et al in Norway [15].…”

Section: Introductionmentioning

confidence: 99%