Analysis of entropy generation during natural convection in tilted triangular enclosures with various base angles. (17th June 2016)

• Record Type: Journal Article
• Authors: Rathnam, V. Mani; Roy, Monisha; Basak, Tanmay
• Is Part Of: Numerical heat transfer. Volume 69:Number 12(2016)
• Page Start: 1332
• Page End: 1354
• Publication Date: 2016-06-17
• Subjects: Heat -- Transmission -- Measurement -- Periodicals; Mass transfer -- Measurement -- Periodicals; Numerical analysis -- Periodicals; 621.4022
• DOI: 10.1080/10407782.2016.1139976
• Languages: English
• ISSNs: 1040-7782

Abstract

ABSTRACT: This paper presents a study of entropy generation during natural convection in a triangular enclosure with various configurations (cases 1 and 2 symmetric about Y-axis, and case 3 symmetric about X-axis) for the linearly heated inclined walls. The detailed analysis and comparison for the various base angles (φ = 45° and 60°) of the triangular enclosures have been carried out for Pr = 0.015 − 1, 000 and Ra = 10 3 − 10 5 . The results show that, case 3 configuration with the tilt angle φ = 60° may be the optimal shape based on the minimum total entropy generation ( S total ) with the high heat transfer rate at Ra = 10 5, irrespective of Pr .