Leidenfrost point

Leidenfrost point

[′līd·ən‚frȯst ‚pȯint]
(thermodynamics)
The lowest temperature at which a hot body submerged in a pool of boiling water is completely blanketed by a vapor film; there is a minimum in the heat flux from the body to the water at this temperature.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The actual Leidenfrost temperature, or Leidenfrost point, was assumed as the temperature at the point of infection of the measured temperature curve after which a distinct (second) temperature drop was observed.
The following scenarios were observed: intermittent wall wetting (1), Leidenfrost effect (2), Leidenfrost transition (3), Leidenfrost point (4), deposit formation (5), and permanent wall wetting (6), Figure 4.
Instead, a Leidenfrost point was observed, if the critical injection rate [m.sub.UWS,crit] was exceeded.
Once fuel surface temperature reaches below the Leidenfrost point, surface gets rewetted which results in rapid fall of fuel surface temperature.
Once surface temperature reaches Leidenfrost point it rewets the surface.