{'fraction_non_alphanumeric': 0.022271714922048998, 'fraction_numerical': 0.007423904974016332, 'mean_word_length': 5.269767441860465, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Thermal performance of nanofluid saturated porous medium on cooling electronics contained in an inclined hemispherical enclosure

A nanofluid saturated porous medium is used for cooling purposes of a plane electronic device contained in the base of a hemispherical cavity. According to the intended application in embarked electronics, the base could be tilted with respect to the horizontal plane by an angle ranging from 0[Formula: see text] to 180[Formula: see text] (horizontal disc with cupola facing upwards and downwards, respectively). The volume fraction of the considered monophasic water-based ZnO nanofluid varies between 0% (pure water) and 10%, while the Rayleigh number based on the radius of the cavity ranges from [Formula: see text] to [Formula: see text]. The ratio between the thermal conductivity of the porous medium solid matrix and that of the base fluid varies between 0 and 70. Influence of these four parameters on the average temperature of the active electronic device is presented and commented. The work shows that the saturated porous medium has a significant effect on the thermal state of the electronic device. A correlation is proposed to easily calculate this temperature for any combination of these parameters, which allows thermal sizing for optimal cooling of this assembly used in electronics engineering.