TY - JOUR
T1 - Impact of an ice particle onto a dry rigid substrate
T2 - Dynamic sintering of a residual ice cone
AU - Reitter, L.M.
AU - Lohmann, H.
AU - Schremb, M.
AU - Roisman, I.V.
AU - Hussong, J.
AU - Tropea, C.
N1 - Funding Information:
This project has received funding from the European Union's Horizon 2020 Research and Innovation Programme under grant agreement No 767560 . The images of drop impact in Fig. 5 (a) are courtesy of Mark Gloerfeld from the authors’ institute. The authors want to thank Maximilian Lausch for the improvement of the calibration methodology of the residual mass measurement method.
Publisher Copyright:
© 2021
PY - 2022/2
Y1 - 2022/2
N2 - Ice particle impact onto a cold dry rigid substrate leads to particle deformation and breakup. If the impact velocity is high enough, the deformation is governed mainly by inertial and plastic stresses. Particle deformation may lead to the development of multiple cracks and the formation of a fragmented particle zone in the vicinity of the target surface. Moreover, a small solid residual ice cone, formed from fine particle fragments, remains attached to the substrate. In the present study the normal impact of nearly spherical ice particles, their deformation and fragmentation are observed using a high-speed video system. The size and mass of the residual ice cone are measured for impact velocities ranging from 11.2 ms-1 to 73.2 ms-1 and initial particle diameters ranging from 1.89 mm to 4.44 mm. A theoretical model for the ice particle collision and deformation is used to estimate the residual ice cone size. The model is based on a hydrodynamic approach describing particle deformation and is able to predict well the maximum radius of impression and the collision duration. The radius of the impression is used as the main length scale for an empirical model for the geometry of the residual ice cone.
AB - Ice particle impact onto a cold dry rigid substrate leads to particle deformation and breakup. If the impact velocity is high enough, the deformation is governed mainly by inertial and plastic stresses. Particle deformation may lead to the development of multiple cracks and the formation of a fragmented particle zone in the vicinity of the target surface. Moreover, a small solid residual ice cone, formed from fine particle fragments, remains attached to the substrate. In the present study the normal impact of nearly spherical ice particles, their deformation and fragmentation are observed using a high-speed video system. The size and mass of the residual ice cone are measured for impact velocities ranging from 11.2 ms-1 to 73.2 ms-1 and initial particle diameters ranging from 1.89 mm to 4.44 mm. A theoretical model for the ice particle collision and deformation is used to estimate the residual ice cone size. The model is based on a hydrodynamic approach describing particle deformation and is able to predict well the maximum radius of impression and the collision duration. The radius of the impression is used as the main length scale for an empirical model for the geometry of the residual ice cone.
KW - Hydrodynamic model
KW - Ice crystal icing
KW - Ice particle impact
KW - Particle crushing
KW - Particle fragmentation
UR - http://www.scopus.com/inward/record.url?scp=85120917274&partnerID=8YFLogxK
U2 - 10.1016/j.coldregions.2021.103416
DO - 10.1016/j.coldregions.2021.103416
M3 - Article
AN - SCOPUS:85120917274
SN - 0165-232X
VL - 194
JO - Cold Regions Science and Technology
JF - Cold Regions Science and Technology
M1 - 103416
ER -