Meyer, Josua P.Everts, Marilize2019-10-082019Meyer, J.P. & Everts, M. 2019, 'A review of the recent developments in laminar, transitional, quasi-turbulent and turbulent forced and mixed convective flow through horizontal tubes', Advances in Heat Transfer, vol. 51, pp. 131-205.0065-271710.1016/bs.aiht.2019.07.001http://hdl.handle.net/2263/71632he laminar and turbulent flow regimes have been extensively investigated from as early as 1883, and research has been devoted to the transitional flow regime since the 1990s. However, there are several gaps in the mixed convection literature, especially when the flow is still developing. The purpose of this chapter is to combine fragmented previous work of the authors to create a new coherent body of work with new perspectives. Specifically, focusing on the heat transfer and pressure drop characteristics of developing and fully developed flow in smooth horizontal tubes for forced and mixed convection conditions. The flow regimes that were covered were laminar (forced and mixed convection), transitional (forced and mixed convection), quasi-turbulent and turbulent.en© 2019 Elsevier Inc. All rights reserved. Notice : this is the author’s version of a work that was accepted for publication in Advances in Heat Transfer. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. A definitive version was subsequently published in Advances in Heat Transfer, ol. 51, pp. 131-205. 2019. doi : 10.1016/bs.aiht.2019.07.001.LaminarTransitionalQuasi-turbulentTurbulentForced convectionMixed convectionTubesDeveloping flowFully developed flowEngineering, built environment and information technology articles SDG-04SDG-04: Quality educationEngineering, built environment and information technology articles SDG-07SDG-07: Affordable and clean energyEngineering, built environment and information technology articles SDG-09SDG-09: Industry, innovation and infrastructureEngineering, built environment and information technology articles SDG-13SDG-13: Climate actionPostprint Article