Experimental studies of transition to turbulence in a pipe

T Mullin - Annual Review of Fluid Mechanics, 2011 - annualreviews.org
In his landmark paper of 1883, Reynolds addressed the question of why the fluid motion
along a pipe changes from a laminar to a turbulent state at modest flow rates. His …

Heat transfer measurements and correlations in the transition region for a circular tube with three different inlet configurations

AJ Ghajar, LM Tam - Experimental thermal and fluid science, 1994 - Elsevier
Local forced and mixed convective heat transfer measurements were made in a horizontal
circular straight tube with reentrant, square-edged, and bell-mouth inlets under uniform wall …

The effects of surface roughness on fully developed laminar and transitional flow friction factors and heat transfer coefficients in horizontal circular tubes

M Everts, P Robbertse, B Spitholt - International Journal of Heat and Mass …, 2022 - Elsevier
Although the effect of surface roughness on internal forced convection is considered a
mature field, very limited work has been done focussing on the effect of surface roughness in …

Single-phase mixed convection of developing and fully developed flow in smooth horizontal circular tubes in the laminar and transitional flow regimes

JP Meyer, M Everts - International Journal of Heat and Mass Transfer, 2018 - Elsevier
Correlations to calculate the local and average heat transfer coefficients for single-phase
laminar flow in horizontal circular tubes with a constant heat flux boundary condition are …

Heat transfer and pressure drop in the transitional flow regime for a smooth circular tube with twisted tape inserts and a square-edged inlet

JP Meyer, SM Abolarin - International Journal of Heat and Mass Transfer, 2018 - Elsevier
The purpose of this study was to experimentally investigate the heat transfer and pressure
drop characteristics in the transitional flow regime of twisted tape inserts in a circular tube …

Heat transfer coefficients of laminar, transitional, quasi-turbulent and turbulent flow in circular tubes

JP Meyer, M Everts, N Coetzee, K Grote… - … Communications in Heat …, 2019 - Elsevier
Several well-known correlations to determine the heat transfer coefficients of quasi-turbulent
and turbulent flow in smooth tubes are available in literature. However, when these …

Heat transfer of developing and fully developed flow in smooth horizontal tubes in the transitional flow regime

M Everts, JP Meyer - International Journal of Heat and Mass Transfer, 2018 - Elsevier
Limited experimental work has been done specifically focussing on how the heat transfer
characteristics of developing flow in the transitional flow regime changes along the tube …

The influence of a novel ribbed wave tape on the enhancement of heat transfer in a solar air heater operating in a transitional flow regime: an experimental study

S Bhattacharyya, DK Vishwakarma… - Experimental Heat …, 2023 - Taylor & Francis
The effect of a novel ribbed wave tape on the augmentation of heat transfer in a solar air
heater operating in a transitional flow regime is experimentally examined. Three different …

Relationship between pressure drop and heat transfer of developing and fully developed flow in smooth horizontal circular tubes in the laminar, transitional, quasi …

M Everts, JP Meyer - International Journal of Heat and Mass Transfer, 2018 - Elsevier
Limited work has been done specifically focussing on the relationship between pressure
drop and heat transfer in the transitional flow regime. The purpose of this study was …

[HTML][HTML] Experimental investigations of effects of nanoparticle size on force convective heat transfer characteristics of Al2O3-MWCNT hybrid nanofluids in transitional …

IU Ibrahim, M Sharifpur, JP Meyer… - International Journal of …, 2024 - Elsevier
This study reports an experimental investigation of nanoparticle sizes effects on the heat
transfer characteristics of hybrid nanofluids along the transitional flow regime. Four different …