Enhanced Transport under Annular Jet by Introducing Rib. Issue 1 (February 2021)

• Record Type: Journal Article
• Authors: Pal, Tarun Kanti; Chattopadhyay, Himadri; Mandal, Dipak Kumar
• Is Part Of: IOP conference series. Volume 1080:Issue 1(2021)
• Publication Date: 2021-02
• Subjects: Annular jet -- Ribbed Surface -- Heat transfer -- Turbulent flow; Materials science -- Periodicals; 620.1105
• DOI: 10.1088/1757-899X/1080/1/012045
• Languages: English
• ISSNs: 1757-8981

Abstract

Abstract: This work concern studies for the transport enhancement of impinging annular jets. The ribs are introduced on the impingement surface and higher heat transfer could be obtained using rib compared to plane surface. Comparison is made with circular jet to predict the enhancement of heat transport for same Reynolds number and mass and momentum efflux at jet outlet. The model used for solving the problem is Shear Stress Transport (SST) model, while the Reynolds numbers of jet varies from 100 to 50000. Square rib is used in this study. This study reveals that the ribs will increase the heat transfer for both circular and annular jets. Annular jet provides 20–30% lower heat transfer than that of the circular jet.