Heat transfer enhancement using different types of vortex generators (VGs): A review on experimental and numerical activities

M Awais, AA Bhuiyan - Thermal Science and Engineering Progress, 2018 - Elsevier
This paper presents a comprehensive review on heat transfer augmentation and pressure
loss reduction of compact heat exchanger (CHXs) by using interrupted surfaces in the form …

Vortices, generators and heat transfer

M Fiebig - Chemical Engineering Research and Design, 1998 - Elsevier
Longitudinal vortices are more efficient for heat transfer enhancement than transverse
vortices. A survey is given on triangular and rectangular protrusions from a heat transfer …

An investigation of the thermo-hydraulic performance of the smooth wavy fin-and-elliptical tube heat exchangers utilizing new type vortex generators

B Lotfi, B Sundén, Q Wang - Applied Energy, 2016 - Elsevier
A three-dimensional CFD numerical simulation is successfully carried out on thermo-
hydraulic characteristics of a new smooth wavy fin-and-elliptical tube (SWFET) heat …

Experimental investigation of heat transfer and friction factor characteristics of solar air heater using wavy delta winglets

JS Sawhney, R Maithani, S Chamoli - Applied thermal engineering, 2017 - Elsevier
In the present work experimental investigation on the heat transfer and friction
characteristics of a solar air heater duct roughened with wavy-up delta winglet vortex …

[HTML][HTML] Flow and heat transfer optimization of a fin-tube heat exchanger with vortex generators using Response Surface Methodology and Artificial Neural Network

C Xie, G Yan, Q Ma, Y Elmasry, PK Singh… - Case Studies in Thermal …, 2022 - Elsevier
Using vortex generators (VGs) in fin-tube heat exchangers (FTHEs) is one of the main
options to increase their performance. Although numerical models can replace the …

Optimization of winglet-type vortex generator positions and angles in plate-fin compact heat exchanger: response surface methodology and direct optimization

LO Salviano, DJ Dezan, JI Yanagihara - … Journal of Heat and Mass Transfer, 2015 - Elsevier
Augmentation of heat transfer has been an important research topic for many years.
Although many heat transfer enhancement techniques have been proposed over the years …

Interaction effects between parameters in a flat-tube louvered fin compact heat exchanger with delta-winglets vortex generators

DJ Dezan, LO Salviano, JI Yanagihara - Applied Thermal Engineering, 2015 - Elsevier
The combination of multi-louvered fins and delta-winglet vortex generators is a promising
strategy to enhance heat transfer in flat-tube compact heat exchangers. This paper focuses …

Enhancement of thermal and hydraulic performance of compact finned-tube heat exchanger using vortex generators (VGs): a parametric study

M Awais, AA Bhuiyan - International Journal of Thermal Sciences, 2019 - Elsevier
In this study, a numerical analysis is conducted to investigate the influence of interrupted
surfaces on compact heat exchangers (CHXs). The performance of CHXs in terms of heat …

Thermal-hydraulic performance optimization of inline and staggered fin-tube compact heat exchangers applying longitudinal vortex generators

LO Salviano, DJ Dezan, JI Yanagihara - Applied Thermal Engineering, 2016 - Elsevier
Optimization is now recognized as essential in the design of modern compact heat
exchanger since the augmentation of heat transfer applying longitudinal vortex generator …

Analysis of the effect of vortex generator spacing on boundary layer flow separation control

X Li, W Liu, T Zhang, P Wang, X Wang - Applied Sciences, 2019 - mdpi.com
During the operation of wind turbines, flow separation appears at the blade roots, which
reduces the aerodynamic efficiency of the wind turbine. In order to effectively apply vortex …