Nucleate boiling
Modeling and Simulation of Nucleate Boiling
... pool boiling type ...of boiling crisis is a critical safety issue for the nuclear industry: when the transition occurs from nucleate boiling to film boiling in the vicinity of heating ...
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Direct numerical simulation of nucleate boiling in micro-layer regime
... Several points remain unclear about the physical processes involved in the formation and depletion of micro-layers. In partic- ular, it is not fully understood for which conditions nucleate boil- ing occurs in ...
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Direct numerical simulation of nucleate boiling in zero gravity conditions
... Numerical solvers based either on fundamental conservation equations [12,13] or Lattice Boltzmann equations [14,15] can be used to simulate nucleate boiling. In the present paper, we will focus on the first ...
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Direct numerical simulation of nucleate boiling in micro-layer regime
... reproducing the phenomenon [27,45,48] . Several points remain unclear about the physical processes involved in the formation and depletion of micro-layers. In partic- ular, it is not fully understood for which conditions ...
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Application of two-color LIF thermometry to nucleate boiling
... During boiling, a steep temperature gradient exists near the heating wall. This thermal gradient is accompanied by an optical index variation. The incident laser light is then nonuniform near the wall. ...
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Direct numerical simulation of nucleate boiling in zero gravity conditions
... phenomenon. Nucleate boiling in micro-gravity conditions is actually a topic of large scientific interest, and a number of questions remain unan- ...
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Transient flow boiling in a semi-annular duct: From the Onset of Nucleate Boiling to the Fully Developed Nucleate Boiling
... Fig. 16 a represents the logarithm of the ratio / w=/gen of the same test. Once again, the black lines deduced from the analysis of the vapor front thickness analysis have been reproduced. It is very close to 0 (i.e. / w ...
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Transient flow boiling in a semi-annular duct: From the Onset of Nucleate Boiling to the Fully Developed Nucleate Boiling
... Transient boiling has been studied since the 1950s and most of these investigations were performed in pool boiling condition using ribbon [1] , wire [2–4] or plate [5–7] ...pool boiling in ...
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Burnout in forced convection nucleate boiling of water
... the exit section must become small at high quality, Since the boiling process depends on a liquid covered surface, it is reasonable to expect that the average depth of the liqu[r] ...
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Burnout in forced convection nucleate boiling of water
... At hibg heat flux, in the nei*hborhood of burnout, the test section is normally almost isothermal, so that, while the magnitude of the test section resistance may [r] ...
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The correlation of nucleate boiling burn-out data
... In addition, no general correlation scheme exists, so that it is impossible for .a designer to take burnout data for water, for instance, and use it to calculate[r] ...
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Departure from nucleate boiling and pressure drop prediction for tubes containing multiple short-length twisted-tape swirl promoters
... For a fixed coolant mass flow rate, the swirling flow produced by the MSLTTs allows the IPWR to have a higher operating heat flux while maintaining the design criteria of M[r] ...
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Numerical investigation of boiling
... during nucleate boiling. We numerically investigate boiling using two phase flow direct numerical simulation based on a level set / Ghost Fluid ...curvature. Nucleate boiling on a plate ...
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Direct numerical simulation of nucleate pool boiling at large microscopic contact angle and moderate Jakob number
... of Nucleate Boiling on a single site in configura- tions involving both a large microscopic contact angle, a moderate Jakob number (less than 50) and a high density ratio between the two ...
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Flow boiling in tube in microgravity
... flow boiling in a tube of 6 mm diameter are performed both in normal and microgravity ...in nucleate boiling regime at low qualities, the values are smaller than the prediction of classical ...
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Experimental study of transient boiling
... transient boiling, such as during a reactivity initiated accident, is still unsufficiently ...of boiling are recorded. It allows to catch boiling regime transition (onset of nucleate ...
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Experimental study of transient boiling
... transient boiling, such as during a reactivity initiated accident, is still unsufficiently ...of boiling are recorded. It allows to catch boiling regime transition (onset of nucleate ...
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Flow boiling study in mini-channels
... saturated boiling the flow core has reached saturation. Nucleate and convective boiling ...In nucleate boiling the heat transfer coefficient depends on the heat flux which is the driving ...
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Boiling crisis and non-equilibrium drying transition
... vapor bubbles suddenly form a film which covers the heating surface and insulates the latter from the bulk of the liquid. The temperature of the heating surface grows so rapidly that the heater can fuse unless its power ...
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Numerical simulation of boiling for industrial quenching processes
... film boiling-Meso Scale This computation is performed in a three-dimensional hexahedral domain with a heat source (Figure ...film boiling is plotted in Figure ...the nucleate boiling regimes ...
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