%A M.S. Bin Ramli %A A. Basit %A K.Z. Ku Shaari %A L.K. Keong %I Trans Tech Publications Ltd %V 625 %T Study of the effect of surface roughness on droplet spreading behavior using CFD modeling %P 378-381 %X Water droplet spreading has been simulated at impact velocity of 3.0 m/s, 1.5 m/s and 0.5 m/s on surfaces with texture of �triangle�, �square�, �curve� as well as smooth surface of aluminum. Higher impact velocity induced the droplet to spread faster and has a bigger diameter. At high impact velocity, spreading factor cannot be determined due to splashing and droplet break ups. In addition, at 1.5 m/s the phenomenon of splashing was found to be almost absent except on the surface with �square� texture. �Square� surface tends to splash earlier compared to other surfaces and is followed by �triangle�, �curve� and smooth surface. At low impact velocity, the smooth surface has the highest spreading factor and followed by �triangle�, �square� and �curve� surface. © 2014 Trans Tech Publications, Switzerland. %K Surface roughness; Textures; Velocity, CFD modeling; Droplet spreading; High-impact velocities; Impact velocities; Low-impact velocity; Smooth surface; Spreading factor; Water droplets, Drops %L scholars4699 %J Applied Mechanics and Materials %O cited By 1; Conference of 3rd International Conference on Process Engineering and Advanced Materials, ICPEAM 2014 ; Conference Date: 3 June 2014 Through 5 June 2014; Conference Code:114811 %R 10.4028/www.scientific.net/AMM.625.378 %D 2014