scholarly journals Analysis of Super-cooled Water Droplet Impact on a Thin Water Layer and Ice Growth

2006 ◽  
Author(s):  
Manuel Quero ◽  
David Hammond ◽  
Richard Purvis ◽  
Frank Smith
Keyword(s):  
Water Droplet ◽  
Water Layer ◽  
Droplet Impact ◽  
Ice Growth

Ultra-Highspeed Optical Diagnostics of Water Droplet Impact, Breakup and Shock Boundary Layer Interactions of Hypervelocity Projectiles

2022 ◽  
Author(s):  
Gavin Lukasik ◽  
Jacob Rogers ◽  
Kalyan R. Kota ◽  
Rodney D. Bowersox ◽  
Thomas E. Lacy ◽  
...  
Keyword(s):  
Boundary Layer ◽  
Water Droplet ◽  
Optical Diagnostics ◽  
Droplet Impact

Depth Profiling of Polystyrene Using Charged Water Droplet Impact

2009 ◽  
Vol 15 (3) ◽  
pp. 283-286 ◽  
Author(s):  
Yuji Sakai ◽  
Yoshitoki Iijima ◽  
Riou Takaishi ◽  
Daiki Asakawa ◽  
Kenzo Hiraoka
Keyword(s):  
Water Droplet ◽  
Depth Profiling ◽  
Droplet Impact ◽  
Charged Water

scholarly journals Numerical simulation of water droplet impact test on aircraft wing structure

2019 ◽  
Vol 1276 ◽  
pp. 012034 ◽  
Author(s):  
S. Manigandan ◽  
Dineshkumar ◽  
Muthiaya Ramanathan ◽  
P. Gunasekar ◽  
J. Devipriya ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Water Droplet ◽  
Impact Test ◽  
Droplet Impact ◽  
Aircraft Wing ◽  
Wing Structure

scholarly journals Water Droplet Erosion of Wind Turbine Blades: Mechanics, Testing, Modeling and Future Perspectives

Materials ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 157 ◽  
Author(s):  
Mohamed Elhadi Ibrahim ◽  
Mamoun Medraj
Keyword(s):  
Wind Turbine ◽  
Water Droplet ◽  
Prediction Models ◽  
Experimental Testing ◽  
Turbine Blades ◽  
Leading Edge ◽  
Droplet Impact ◽  
Wind Turbine Blades ◽  
Water Droplet Erosion ◽  
Erosion Prediction

The problem of erosion due to water droplet impact has been a major concern for several industries for a very long time and it keeps reinventing itself wherever a component rotates or moves at high speed in a hydrometer environment. Recently, and as larger wind turbine blades are used, erosion of the leading edge due to rain droplets impact has become a serious issue. Leading-edge erosion causes a significant loss in aerodynamics efficiency of turbine blades leading to a considerable reduction in annual energy production. This paper reviews the topic of water droplet impact erosion as it emerges in wind turbine blades. A brief background on water droplet erosion and its industrial applications is first presented. Leading-edge erosion of wind turbine is briefly described in terms of materials involved and erosion conditions encountered in the blade. Emphases are then placed on the status quo of understanding the mechanics of water droplet erosion, experimental testing, and erosion prediction models. The main conclusions of this review are as follow. So far, experimental testing efforts have led to establishing a useful but incomplete understanding of the water droplet erosion phenomenon, the effect of different erosion parameters, and a general ranking of materials based on their ability to resist erosion. Techniques for experimentally measuring an objective erosion resistance (or erosion strength) of materials have, however, not yet been developed. In terms of modelling, speculations about the physical processes underlying water droplet erosion and consequently treating the problem from first principles have never reached a state of maturity. Efforts have, therefore, focused on formulating erosion prediction equations depending on a statistical analysis of large erosion tests data and often with a combination of presumed erosion mechanisms such as fatigue. Such prediction models have not reached the stage of generalization. Experimental testing and erosion prediction efforts need to be improved such that a coherent water droplet erosion theory can be established. The need for standardized testing and data representation practices as well as correlations between test data and real in-service erosion also remains urgent.

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