Impact of leading edge delta-wing vortex generators on the thermal performance of a flat tube, louvered-fin compact heat exchanger

Joardar, A.; Jacobi, A.M.

doi:10.1016/j.ijheatmasstransfer.2004.10.018

Cited by 99Heat Transfer and OptimizationHeat Transfer MechanismsRanque-Hilsch vortex tube

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Impact of leading edge delta-wing vortex generators on the thermal performance of a flat tube, louvered-fin compact heat exchanger

Joardar, A., Jacobi, A.M.·2005·International Journal of Heat and Mass Transfer

DOI 10.1016/j.ijheatmasstransfer.2004.10.018

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As Re increases, the air-side heat transfer coefficient increases significantly.
“However, as the Re increased, the air-side heat transfer coefficient increased significantly.”
From Thermal-hydraulic and drainage performance of microchannel heat exchangers for refrigeration and heat pump systems under frosting, defrosting, and wet conditions: A comprehensive review (2023) · cites this paper as [95]
For Re < 300, there is no obvious effect of the vortex generator on the heat transfer coefficient.
“For Re < 300, there was no obvious effect of the vortex generator on the heat transfer coefficient.”
From Thermal-hydraulic and drainage performance of microchannel heat exchangers for refrigeration and heat pump systems under frosting, defrosting, and wet conditions: A comprehensive review (2023) · cites this paper as [95]
The delta-wing vortex generator improves heat transfer performance by up to 23.4% with a pressure drop of less than 7% under dehumidifying conditions.
“The application of the delta wing vortex generator improves the heat transfer performance by up to 23.4% with a pressure drop of less than 7% under dehumidifying conditions”
From Thermal-hydraulic and drainage performance of microchannel heat exchangers for refrigeration and heat pump systems under frosting, defrosting, and wet conditions: A comprehensive review (2023) · cites this paper as [95]

Heat transfer and pressure drop characteristics of flat tube and louvered plate fin surfaces
Achaichia, A., & Cowell, T. A. (1988) · Experimental Thermal and Fluid Science · doi:10.1016/0894-1777(88)90032-5 · Cited by 235

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Research works printed but not linked: 23

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“Joardar and Jacobi [18] were carried out experiments on flat tube lou-vered fin compact heat exchanger for wind tunnel using a delta wing type vortex generator.”
Using Patterned Surface Wettability to Enhance Air-Side Heat Transfer Through Frozen Water Droplet Vortex Generators – Part II: CFD Simulation Results
Koopman, A. E., Sommers, A., & Hermes, C. (2021) · International journal of refrigeration · doi:10.1016/j.ijrefrig.2021.07.034 · Cited by 3
Thermal enhancement of triangular fins based on spanwise distance of vortex generators
Akcayoglu, A., & Nazli, C. (2017) · doi:10.1177/0954406216636917 · Cited by 3
Computational and Experimental Comparison of Tube Wall Heat Transfer Augmented by Winglets in Louvered Fin Heat Exchangers
Lawson, M., Sanders, P. J., & Thole, K. (2006) · doi:10.1115/imece2006-14452 · Cited by 3
Compound heat transfer enhancement for shell side of double-pipe heat exchanger by helical fins and vortex generators
Zhang, L., Guo, H.-L., Wu, J., & Du, W. (2012) · Heat and Mass Transfer · doi:10.1007/s00231-011-0959-5 · Cited by 2
Using Patterned Surface Wettability to Enhance Air-Side Heat Transfer Through Frozen Water Droplet Vortex Generators – Part I: Experimental Study
Koopman, A. E., Sommers, A., & Hermes, C. (2021) · International journal of refrigeration · doi:10.1016/j.ijrefrig.2021.07.033 · Cited by 2
Thermo-hydraulic performance assessment of a compact heat exchanger by varying plate fins
Ozturk, M., Doğan, B., & Erbay, L. (2017) · IEEE International Conference on Renewable Energy Research and Applications · doi:10.1109/icrera.2017.8191145 · Cited by 2
Numerical study of a round tube heat exchanger with louvered fins and delta winglets
Huisseune, H., Tjoen, C., Jaeger, P. D., Ameel, B., & Paepe, M. D. (2012) · doi:10.1088/1742-6596/395/1/012050 · Cited by 2
Transversal tube pitch effects on local heat transfer characteristics of the flat tube bank fin mounted vortex generators and their sensitivity to nonuniform temperature of the fin
Wang, L.-C., Lin, Z.-M., Sun, K., Dong, Y.-X., Liu, S., & Zhang, Y.-H. (2010) · doi:10.1007/s11708-009-0061-6 · Cited by 2
AIRSIDE PASSIVE HEAT TRANSFER ENHANCEMENT, USING MULTI-SCALE ANALYSIS AND SHAPE OPTIMIZATION, FOR COMPACT HEAT EXCHANGERS WITH SMALL CHARACTERISTIC LENGTHS
Bacellar, D. (2016) · doi:10.13016/m26r84 · Cited by 2
“alternate tubes with enhanced fins [27, 14, 45, 36].”
Parametric analysis of thermo-hydraulic performance in louver-finned multi-row circular-tube heat exchangers with rear-punched Curved Delta-winglet Vortex generators
Lin, Z.-M., Hou, Y., Wang, G.-L., & Wang, L.-B. (2026) · International Communications in Heat and Mass Transfer · doi:10.1016/j.icheatmasstransfer.2026.111996 · Cited by 1
Numerical assessment of thermohydraulic performance in pipes with different arrangements of delta winglet pairs via the GEKO turbulence model
Demirag, H. Z., Iğci, A., & Hazer, N. (2026) · International Journal of Energy Studies · doi:10.58559/ijes.1829911 · Cited by 1
Correction to: Intensification of heat transfer of a wavy channel with a series of detachable vortex generators; Numerical analysis with rans model modification
Tahmasebian, I., Ghafouri, A., Assareh, E., & Moravej, M. (2022) · The European Physical Journal Plus · doi:10.1140/epjp/s13360-022-03015-9 · Cited by 1
PERFORMANCE ASSESSMENT AND EMPIRICAL CORRELATION IN A HEAT EXCHANGER SQUARE DUCT WITH DIAGONAL INSERTED GENERATORS
Boonloi, A. (2014) · doi:10.5098/hmt.5.8 · Cited by 1
Effects of the arrangement of triangle-winglet-pair vortex generators on heat transfer performance of the shell side of a double-pipe heat exchanger enhanced by helical fins
Zhang, L., Shang, B., Meng, H.-B., Li, Y., Wang, C.-H., Gong, B., & Wu, J. (2016) · Heat and Mass Transfer · doi:10.1007/s00231-016-1804-7
“Wings and winglet pairs can be classified as triangle wing (delta wing, DW), rectangular wing (RW), triangle winglet pairs (delta winglet pairs, DWP) and rectangular winglet pairs (RWP) [7, 8].”
Background
Research on the equivalent porous medium of the whole radiator based on the parametric characteristics of unit fins
Liu, Y., Zhao, K., Zhang, J.-H., Sun, X.-X., Cao, Y.-F., Li, Q.-Q., & Li, M. (2026) · Proceedings of the 2026 6th International Conference on Automation Control, Algorithm and Intelligent Bionics · doi:10.1145/3828836.3828838
“In [4], the researchers experimentally and theoretically confirmed the positive correlation between secondary flow intensity and heat transfer performance.”
Experimental Investigation of Heat Transfer Enhancement from Pin Fins with Delta Winglet Vortex Generators in Square Channel
Chitnis, S., & Kore, E. S. (2018) · doi:10.15680/ijirset.2018.0702108
Performance Simulation and Study Analysis of The Vehicle Air Conditioning System
Chang, H.-C., Mu, J., Song, C.-X., & Yan, W. (2015) · doi:10.2991/ifeesm-15.2015.10
Study on Enhanced Heat Transfer and Structural Optimum for Combination Vortex Generator in Spiral Channel
Qing, D., Zhang, Y.-L., Liu, S., & Wang, C.-F. (2014) · doi:10.4028/www.scientific.net/amm.501-504.2338
“Many scholars [1-9] have studied the performance of heat transfer enhancement of some wing type vortex generators in rectangular channels, such as rectangular wing, triangle wing and trapezoidal wing.”
Background
High-Fidelity PIV Measurements of the Three-Dimensional Flow Field Downstream of a Pair of Delta-Winglet Vortex Generators.
McGarry, L. F. (2016) · doi:10.21427/d7kc9p

Authors: Joardar, A., & Jacobi, A. M.
Affiliations: University of Illinois Urbana-Champaign (US)
Corresponding author: Jacobi, A.M.
ORCID: Jacobi, A.M.
Venue: International Journal of Heat and Mass Transfer
Publisher: Elsevier BV
Published: 2005-04
Volume: 48
Issue: 8
Pages: 1480-1493
ISSN: 0017-9310 (ISSN-L)
DOI: 10.1016/j.ijheatmasstransfer.2004.10.018
OpenAlex: W2089367920
Cited by: 99
References: 0
Citations by year: 2026: 5 · 2025: 1 · 2024: 3 · 2023: 2 · 2022: 3 · 2021: 5 · 2020: 2 · 2019: 1 · 2018: 5 · 2017: 8 · 2016: 8 · 2015: 3 · 2014: 6 · 2013: 2 · 2012: 12
FWCI: 7.98
Type: journal article
Language: en
Open access: closed
Licence: www.elsevier.com/tdm/userlicense/1.0/ (tdm)
Locations: International Journal of Heat and Mass Transfer (publishedVersion)
Topics: Physical Sciences › Engineering › Mechanical Engineering › Heat Transfer and Optimization
Physical Sciences › Engineering › Mechanical Engineering › Heat Transfer Mechanisms
Physical Sciences › Engineering › Mechanical Engineering › Ranque-Hilsch vortex tube
Keywords: delta wing vortex generator, compact heat exchangers, louvered fins, flat tube heat exchanger, heat transfer enhancement, pressure drop, automotive heat exchangers, thermal-hydraulic performance

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Impact of leading edge delta-wing vortex generators on the thermal performance of a flat tube, louvered-fin compact heat exchanger

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