Thermal Behavior due to Buoyancy-driven Convection between Two Vertical Surfaces in an Enclosed Cavity Partitioned by an array of Perforated Blades. Issue 2 (23rd February 2023)

• Record Type: Journal Article
• Authors: Karami, Alimohammad; Veysi, Farzad
• Is Part Of: Experimental heat transfer. Volume 36:Issue 2(2023)
• Page Start: 234
• Page End: 253
• Publication Date: 2023-02-23
• Subjects: Buoyancy-driven convection -- double-pane windows -- energy saving -- perforated blades -- vertical cavity; Heat -- Transmission -- Measurement -- Periodicals; 621.4022
• DOI: 10.1080/08916152.2021.1991512
• Languages: English
• ISSNs: 0891-6152

Abstract

ABSTRACT: In this investigation, a partitioned vertical enclosed cavity is introduced by a modified configuration in which, perforations are made on the interior horizontal flat non-conductive blades in the cavity. Then, experiments have been executed to investigate the effects of governing parameters on the thermal behavior due to the buoyancy-driven convection in the modified partitioned cavity. Side walls of the cavity have different constant temperatures, while other walls are kept unheated. The governing parameters are the Rayleigh number (7 × 10 3 ≤ Ra ≤1.45 × 10 4 ), blade's tilt angle (0° ≤ θ ≤ 150°), perforation's diameter to blade's width ratio (0.2 ≤ d/w ≤ 0.6) as well as blade's width to cavity's width ratio (0.7872 ≤ w/W ≤ 0.9367).