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. 2017 Sep 8;3(9):e1701558. doi: 10.1126/sciadv.1701558

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Copyright © 2017 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).

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Fig. 4 — Variation of the hydrodynamic pressure, ρu²/2 (symbols), obtained from potential flow and the gravitational, ρgz (solid line), components of the pressure on the surface of the gas cavity around 20-mm-diameter heated metal spheres in the Leidenfrost state (see Eq. 2) and the pressure around a sphere (dashed line) (see Eq. 3) for the systems: (A) steel sphere in 95°C water, (B) tungsten carbide sphere in 95°C water, (C) steel sphere in fluorocarbon PP1 liquid, and (D) tungsten carbide sphere in fluorocarbon PP1 liquid.