Transport phenomena in a sidewall-moving bottom-heated cavity using heatlines

摘要: The understanding of basic feature energy transport from a heat source is important the fundamental point view as well various engineering and technological applications. To enrich knowledge in this area, paper presents phenomena heated bottom an air-filled enclosure using heatfunction heatlines. Both upward motion downward sidewalls alteration cooling between top wall are considered, which yields four different cases. All cases investigated to identify proper combination thermal condition for better performance, considering convection regimes. highly nonlinear nature flow solved numerically in-house code, taking into account speeds relative strength buoyant shear flow. results reveal that case with side translation performs maximum transfer compared other Higher speed also causes higher transfer. Under natural regime, significantly high. Furthermore, order mixing cavity analysed it found mixing. demonstrate vortical structure cavity, streamfunction streamlines used. Evolutions symmetric asymmetric vortices centre saddle points recirculation cells cavity.