RT Journal Article ID 562c9c5b3b9f52a8 A1 Lee, Sang Yong A1 Kim, Woo Shik T1 DROP-IMPINGING BEHAVIOR ON STRUCTURED SURFACES−A SHORT REVIEW JF Atomization and Sprays JO AAS YR 2014 FD 2014-07-28 VO 24 IS 9 SP 801 OP 825 K1 drop impact K1 microstructure K1 porous surface K1 postimpingement regime AB The phenomenon of wall collision of liquid drops is widely seen in spray cooling of surfaces, as well as in spray painting and spray coating. Study of the single-drop impact on the wall is essential to understanding the impingement behavior of sprays against solid surfaces. Primary parameters determining the impingement behavior can be classified into two categories: the drop-side and surface-side parameters. The drop-side parameters include velocity, size (diameter), and liquid properties (density, surface tension, and viscosity) of drops, while the surface-side parameters include surface structure (configuration of microstructure on the surface and permeability), material wettability, and temperature. In this paper, dependence of the drop impingement behavior on those parameters is systematically reviewed, especially focusing on the surface-side parameters. Finally, tentative maps showing the impingement regimes for hydrophobic (nonwettable) and hydrophilic (wettable) surfaces with Weber number, surface roughness (normalized with the drop diameter), and wall temperature (normalized with the saturation temperature) as their axes were constructed and are discussed. PB Begell House LK https://www.dl.begellhouse.com/journals/6a7c7e10642258cc,47c52efb4ebee77a,562c9c5b3b9f52a8.html