Abstract
Understanding heat transfer becomes more important as the severity of climate, either hot or cold, increases. Managing heat flows is critical to occupant’s thermal comfort, durability, energy efficiency, and, increasingly, thermal resilience during periods of extended power outages. In the present study, the convective air flow in the differentially heated gamma (\({\Gamma }\)) shaped enclosure is simulated numerically. Isothermal temperature conditions are assumed at the vertical walls of the enclosure in which the temperature of the step wall is higher than that of other vertical walls. Top and bottom walls of the enclosure are considered to be adiabatic. The governing equations of the problem are discretized using the finite volume approach. To accelerate these simulations, the message passing interface (MPI) protocols are employed using the OpenMPI standard library. High-resolution simulation results are presented. We compare our results with those obtained by state-of-the-art methods to validate the performance of employed numerical methods. The flow behavior is elucidated with the aid of streamlines, isotherms, energy streamlines and synergy between the velocity and temperature gradient vectors by varying the control parameter, Rayleigh number, in the laminar regime.
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Rani, H.P., Narayana, V., Rameshwar, Y., Starchenko, S.V. (2022). Numerical Flow Analysis in \(\Gamma\) Shaped Enclosure: Energy Streamlines and Field Synergy. In: Kosterov, A., Bobrov, N., Gordeev, E., Kulakov, E., Lyskova, E., Mironova, I. (eds) Problems of Geocosmos–2020. Springer Proceedings in Earth and Environmental Sciences. Springer, Cham. https://doi.org/10.1007/978-3-030-91467-7_16
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