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Keywords: friction factor
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Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. April 2023, 145(4): 041802.
Paper No: HT-22-1400
Published Online: January 23, 2023
... of experiments on total heat transfer and short-circuit heat transfer, the Nusselt number can be calculated. The pressure drop across a bayonet tube determined the friction factor. In examining a range of Reynolds numbers, Effectiveness and figure of merit have been resolved. It has been observed...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. February 2023, 145(2): 022901.
Paper No: HT-22-1375
Published Online: November 22, 2022
..., friction factor, thermo-hydraulic performance parameter (THPP), and contours of various fluid properties. Different roughness and flow parameters are considered for the computational study, like Reynolds number (Re) and nondimensional pitch (P/e). Re changes from 3800 to 18,000, and the nondimensional...
Includes: Supplementary data
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. May 2022, 144(5): 051902.
Paper No: HT-21-1501
Published Online: March 2, 2022
... in supercritical CO 2 thermal cycles and require accurate correlations and comprehensive performance modeling under extreme temperatures and pressures. In this paper (Part I), new Colburn and friction factor correlations are developed to quantify shell-side heat transfer and friction characteristics of flow within...
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J. Heat Mass Transfer. July 2021, 143(7): 074503.
Paper No: HT-21-1037
Published Online: June 2, 2021
.../j.tsep.2019.100436 [14] Medina , Y. C. , Fonticiella , O. M. C. , and Morales , O. F. G. , 2017 , “ Design and Modelation of Piping Systems by Means of Use Friction Factor in the Transition Turbulent Zone ,” Math. Modell. Eng. Probl. , 4 ( 4 ), pp. 162 – 167 . 10.18280...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. August 2019, 141(8): 081801.
Paper No: HT-18-1709
Published Online: June 12, 2019
... May 7, 2019; published online June 12, 2019. Assoc. Editor: Danesh K. Tafti. 29 10 2018 07 05 2019 perforated twisted tape with V cuts twist ratio Nusselt number friction factor entropy generation The quality of thermal energy output of any thermodynamic system...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. June 2019, 141(6): 062401.
Paper No: HT-17-1032
Published Online: April 16, 2019
... rectangular with hydraulic diameters of 0.8–1.33 mm and aspect ratio of 0.44–0.94. The working fluid was water, and the Reynolds number was in the range 150–4500. The experiment result showed that friction factor was successfully predicted by classical correlation in laminar regime, whereas the laminar...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. November 2014, 136(11): 112602.
Paper No: HT-13-1532
Published Online: August 26, 2014
... as the friction factor ( f Re) and Nusselt numbers in the channel for both Isoflux (Nu H ) and Isothermal (Nu T ) boundary conditions. The consistency of our findings has been verified with earlier results in the literature on empty triangular ducts, when the porosity in our models is made to approach one...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. June 2013, 135(6): 061101.
Paper No: HT-12-1447
Published Online: May 16, 2013
... are the most widely cited and trusted for this configuration. The uncertainty in the correlation for the average heat transfer of a tube in an inner row of a staggered bank of smooth tubes provided by the Zukauskas and Ulinskas correlation is ± 15 % , however, that for the friction factor does...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Heat Exchangers
J. Heat Mass Transfer. September 2012, 134(9): 091802.
Published Online: July 2, 2012
... mean heat transfer coefficients and friction factors. A validated numerical method is also utilized to provide local information. The measured results show that the performance of the DN plate approaches that of the double undulated (DU) plate and lies between that of the cross corrugated (CC) plate...
Journal Articles
Publisher: ASME
Article Type: Heat Transfer Enhancement
J. Heat Mass Transfer. July 2012, 134(7): 071902.
Published Online: May 24, 2012
... of the underlying convective heat transfer mechanisms in the pin fin-dimple channels and improving the cooling design for the gas turbine components. The flow structure, friction factor, and heat transfer performance of the pin fin-dimple channels with various dimple depths have been obtained and compared with each...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J. Heat Mass Transfer. December 2008, 130(12): 124501.
Published Online: September 17, 2008
... factor correlations for low Reynolds number ( Re < 1000 ) flow in conventional and micro-pin-fin arrays were examined and found underpredicting the adiabatic data except the correlation by Short et al. (2002, “Performance of Pin Fin Cast Aluminum Coldwalls, Part 1: Friction Factor Correlation,” J...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. February 2006, 128(2): 121–131.
Published Online: August 8, 2005
... ranging from 3.8 to 167 W ∕ cm 2 and Reynolds numbers from 14 to 112. The results were used to derive the Nusselt numbers, total thermal resistances, and friction factors. It has been found that for Reynolds numbers below ∼ 50 long tube correlations overpredicted the experimental Nusselt number, while...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. January 2006, 128(1): 63–74.
Published Online: July 14, 2005
... are discussed in detail. Practical engineering correlations for the entrance length, friction factor, and heat transfer coefficient are also provided. It is worth emphasizing that, in the present study, molecular diffusion of heat and momentum in the principal...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. October 2005, 127(10): 1151–1158.
Published Online: April 26, 2005
...) are selected, with nonequilibrium wall functions approach (if applicable). The periodic mean values of the friction factor and the wall Nusselt numbers in the hydro and thermally developing entrance region are studied, with the determination of the distribution of time-averaged temperature and velocity...