Journal
NUMERICAL HEAT TRANSFER PART A-APPLICATIONS
Volume 57, Issue 7, Pages 496-519Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/10407781003684316
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Funding
- 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
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Steady-state thermomagnetic convection in a shallow cavity under zero-gravity conditions is numerically investigated for different positions of the field-source. Two symmetrically placed, discrete, flush-mounted heaters of identical strengths represent power-dissipaters in electronics/MEMS applications. The sidewalls are isothermal heat sinks. Correlations between the field-source position and the flow morphology have been established. The distribution patterns of maximum heater temperatures and pertinent heat transfer parameters are explained. The local entropy generation due to heat transfer and fluid friction irreversibilities are determined. The total entropy generation is found to be almost entirely dependent on heat transfer irreversibility. The dipole position that minimizes the total entropy generation also produces the lowest average temperature on the heaters.
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