Print Email Facebook Twitter Incompressible squeeze-film levitation Title Incompressible squeeze-film levitation Author Atalla, M.A.A. (TU Delft Medical Instruments & Bio-Inspired Technology) van Ostayen, R.A.J. (TU Delft Mechatronic Systems Design) Sakes, A. (TU Delft Medical Instruments & Bio-Inspired Technology) Wiertlewski, M. (TU Delft Human-Robot Interaction) Date 2023 Abstract Transverse vibrations can induce the non-linear compression of a thin film of air to levitate objects, via the squeeze-film effect. This phenomenon is well captured by the Reynolds' lubrication theory; however, the same theory fails to describe this levitation when the fluid is incompressible. In this case, the computation predicts no steady-state levitation, contradicting the documented experimental evidence. In this Letter, we uncover the main source of the time-averaged pressure asymmetry in the incompressible fluid thin film, leading the levitation phenomenon to exist. Furthermore, we reveal the physical law governing the steady-state levitation height, which we confirm experimentally. To reference this document use: http://resolver.tudelft.nl/uuid:d34a0466-1ae4-4fa1-b9c8-abd87d0ec3e1 DOI https://doi.org/10.1063/5.0149501 ISSN 0003-6951 Source Applied Physics Letters, 122 (24) Part of collection Institutional Repository Document type journal article Rights © 2023 M.A.A. Atalla, R.A.J. van Ostayen, A. Sakes, M. Wiertlewski Files PDF 241601_1_5.0149501.pdf 2.19 MB Close viewer /islandora/object/uuid:d34a0466-1ae4-4fa1-b9c8-abd87d0ec3e1/datastream/OBJ/view