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ISSN オンライン: 2688-7231

ISBN 印刷: 978-1-56700-497-7 (Flash Drive)

ISBN オンライン: 978-1-56700-496-0

Proceedings of the 25th National and 3rd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2019)
December, 28-31, 2019, IIT Roorkee, Roorkee, India

Transient heat transfer analysis during natural convection at high Ra number and small period of heating from bottom wall

Get access DOI: 10.1615/IHMTC-2019.920
pages 545-550

要約

Numerical study on transient to steady state natural convection inside an enclosure filled with air has been performed where periodic temperature profile is applied from bottom wall. Periodic condition arises from left to right. To understand the thermal characteristic stream function, isotherm and Nu have been plotted against Ra and with respect to time. A typical formation of stream function has been found from study that indicates the formation global circulation at high Ra (106) and at lower period of heating (λ/H=0.5). Penetration also drastically alters at high Ra.
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