Investigating thermal developing zone of compressible laminar flow inside hot tube. Issue 3 (20th November 2019)

• Record Type: Journal Article
• Authors: Abolpour, Bahador; Shamsoddini, Rahim
• Is Part Of: Multidiscipline modeling in materials and structures. Volume 16:Issue 3(2020)
• Page Start: 581
• Page End: 594
• Publication Date: 2019-11-20
• Subjects: Laminar flow -- Compressible flow -- Hot tube -- Thermal developing zone; Materials -- Mathematical models -- Periodicals; Engineering -- Mathematical models -- Periodicals; 620.11015118
• DOI: 10.1108/MMMS-05-2019-0090
• Languages: English
• ISSNs: 1573-6105

Abstract

Abstract : Purpose: Increasing the temperature of gas flows passing through hot tubes is one of the industrial interests. Operations in the gas phase with high temperature variations involve engineers with the compressible fluids problems. The paper aims to discuss this issue. Design/methodology/approach: In this study, a mathematical three-dimensional turbulent model is applied for investigating the heat transfer and laminar gas flow inside the thermal developing zone of a hot tube. The Favre Averaged Navier–Stokes and energy equations and also the Reynolds Stress Model are numerically solved to obtain the fluid velocity and temperature profiles inside this the tube. This model is validated using the experimental data and also well-known formulas in this science. Findings: Finally, effects of inlet volumetric flow rate, heating conditions of the tube wall and tube angle on the temperature and velocity distributions of the gaseous phase inside this zone are investigated. Originality/value: The compressible laminar gas flow and also heat transfer in the thermal developing zone of a hot tube is studied using a three-dimensional turbulent model.