期刊
NUMERICAL HEAT TRANSFER PART A-APPLICATIONS
卷 55, 期 10, 页码 931-951出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/10407780902925440
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资金
- Centre for Nano Science and Technology, Jadavpur University under the UGC Scheme of University with Potential for Excellence
- Council of Scientific and Industrial Research (CSIR), Government of India
Combined temperature and magnetic field gradients established in ferrofluids induce thermomagnetic convection. We report a comparative numerical analysis of steady-state convection carried out for a square and a shallow enclosure under zero-gravity conditions. Two symmetrically placed, discrete, constant-flux flush-mounted heaters on the bottom wall of the cavities represent power-dissipating devices in electronics/MEMS applications. The sidewalls serve as heat sinks. A line dipole placed below the bottom wall is the field-source. The role of the magnetic field, the thermal boundary conditions, and the enclosure dimensions in influencing heat transfer are revealed through a comparative thermal-fluidic analysis in different convection-dominated operational regimes.
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