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