Lattice Boltzmann Study on Influence of Gravitational Acceleration on Pool Nucleate Boiling Heat Transfer
نویسندگان
چکیده
Under both normal gravity and microgravity conditions, pool boiling is an efficient mode of heat transfer which has been widely applied in practice. Studying the influence gravitational acceleration on not only academic significance, but also helpful for design space equipment related to boiling. With development computer technology, numerical method a new reliable way investigate under different gravities. Pseudopotential lattice Boltzmann (i.e., LB) model one most popular multiphase LB models, phase interface could be formed, disappeared migrated naturally. In this paper, Multi-Relaxation-Time MRT) pseudopotential coupled with phase-change was simulate accelerations wall superheats. Pool curves gravities were obtained. It’s found that: 1) coefficient at given superheat decreases decrease gravity; 2) superheat, as well flux, CHF critical flux) point ONB onset nucleate boiling) gradually gravity. addition, based results, scaling proposed predict Finally, proved capable predicting flux during superheats
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ژورنال
عنوان ژورنال: Microgravity Science and Technology
سال: 2021
ISSN: ['0938-0108', '1875-0494']
DOI: https://doi.org/10.1007/s12217-020-09864-2