年間 12 号発行
ISSN 印刷: 1044-5110
ISSN オンライン: 1936-2684
Indexed in
AN EXPERIMENTAL STUDY OF A WATER DROPLET IMPACTING ON A ROTATING WAFER
要約
The evolution of droplet impact is influenced by a moving surface when a free-falling water droplet impacts onto a dry rotating silicon wafer. In the early stage of drop impact, the bottom of the liquid drop adheres on the surface and is simultaneously dragged by the moving surface. The remainder of the drop, governed by the force of inertia, remains and expands above the point of impact. There are two important outcomes of impact between the stationary and moving surfaces. First, the deposited film is elongated by a moving surface to form asymmetrical geometry, and the area of deposited film increases to elevate the surface velocity. Second, either detachment or splashing appears in high surface velocity, which is an impossible occurrence in a smooth and stationary surface. When the surface velocity or impingement angle reaches critical value, surface tension on the upper portion of the droplet can be overcome, resulting in droplet breakup; then the liquid starts to detach or splash. The surface velocity increases and the amount of detaching liquid increases accordingly.
-
M. Rein, Phenomena of liquid drop impact on solid and liquid surfaces.
-
L. Yarin, Drop impact dynamics splashing, spreading, receding, bouncing.
-
R. Rioboo, C. Tropea, and M. Marengo, Outcomes from a drop impact on solid surfaces.
-
C. Clanet, C. Beguin, D. Richard, and D. Quéré, Maximal deformation of an impacting drop.
-
H. Dong, W. W. Carr, D. G. Bucknall, and J. F. Morris, Temporally-resolved inkjet drop impaction on surfaces.
-
C. Mundo, M. Sommerfeld, and C. Tropea, Droplet-wall collisions: Experimental studies of the deformation and breakup process.
-
S. Sikalo and E. N. Gani, Phenomena of droplet-surface interactions.
-
K. Range and F. Feuillebois, Influence of surface roughness on liquid drop impact.
-
L. Xu, W. W. Zhang, and S. R. Nagel, Drop splashing on a dry smooth surface.
-
J. M. Sumner, S. Blake, R. J. Matela, and J. A. Wolff, Spatter.
-
O. A. Povarov, O. I. Nazarov, L. A. Igant’evskaya, and A. I. Nikol’skii, Interaction of drops with boundary layer on rotating surface.
-
S. C. Yao and K. Y. Cai, The dynamics and Leidenfrost temperature of drops impacting on a hot surface at small angles.
-
R. H. Chen and H. W. Wang, Effects of tangential speed on low-normal-speed liquid drop impact on a non-wettable solid surface.
-
N. Z. Mehdizadeh, S. Chandra, and J. Mostaghimi, Formation of fingers around the edges of a drop hitting a metal plate with high velocity.
-
L. Courbin, J. C. Bird, and H. A. Stone, “Black hole” nucleation in a splash of milk.
-
Hao Jiguang, Green Sheldon I., Splash threshold of a droplet impacting a moving substrate, Physics of Fluids, 29, 1, 2017. Crossref
-
Raman K. Ashoke, Normal and oblique droplet impingement dynamics on moving dry walls, Physical Review E, 99, 5, 2019. Crossref
-
Josserand C., Thoroddsen S.T., Drop Impact on a Solid Surface, Annual Review of Fluid Mechanics, 48, 1, 2016. Crossref
-
Choudhury Raihan, Choi Junho, Yang Sangsun, Kim Yong-Jin, Lee Donggeun, Maximum spreading of liquid drop on various substrates with different wettabilities, Applied Surface Science, 415, 2017. Crossref