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Relevant bibliographies by topics / Nusselt number correlation

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Academic literature on the topic 'Nusselt number correlation'

Author: Grafiati

Published: 4 June 2021

Last updated: 7 February 2022

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Journal articles on the topic "Nusselt number correlation"

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Lehnen, M. V., C. Y. Y. Lee, and F. L. D. Alves. "Nusselt number correlation for synthetic jets." Journal of the Brazilian Society of Mechanical Sciences and Engineering 38, no. 7 (2015): 2161–71. http://dx.doi.org/10.1007/s40430-015-0337-1.

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Sato, A. I., C. A. C. Altemani, and V. L. Scalon. "MEAN NUSSELT NUMBER CORRELATION FOR TISE HEATSINK THERMAL DESIGN." Revista de Engenharia Térmica 19, no. 1 (2020): 24. http://dx.doi.org/10.5380/reterm.v19i1.76427.

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This work was developed from a review of the technical literature for the thermal design of parallel plates heat sinks with uniform cross section cooled by airflow with the TISE (Top Inlet Side Exit) configuration. Due to an observed lack of agreement of the literature correlations among themselves and also with the available experimental results, numerical simulations were then performed to evaluate the forced convective heat transfer in the channels of these heat sinks with the TISE configuration. The simulations encompassed a range of heatsink airflow rates, considering distinct channel siz

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Meola, Carosena. "A New Correlation of Nusselt Number for Impinging Jets." Heat Transfer Engineering 30, no. 3 (2009): 221–28. http://dx.doi.org/10.1080/01457630802304311.

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Mortean, M. V. V., and M. B. H. Mantelli. "Nusselt number correlation for compact heat exchangers in transition regimes." Applied Thermal Engineering 151 (March 2019): 514–22. http://dx.doi.org/10.1016/j.applthermaleng.2019.02.017.

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Basha, Mehaboob, and C. S. Nor Azwadi. "Regularized Lattice Boltzmann Simulation of Laminar Natural Convection in Entrance Region of 2D Channels." Applied Mechanics and Materials 307 (February 2013): 267–70. http://dx.doi.org/10.4028/www.scientific.net/amm.307.267.

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This paper presents a numerical study of incompressible laminar natural convection in entrance region of two dimensional vertical and inclined channels using regularized lattice Boltzmann Bhatnaghar-Gross-Krook method. Individual distribution functions with lattice types D2Q9 and D2Q5 are considered to solve fluid flow and thermal fields, respectively. Rayleigh number and inclination angle are varied from 10e2 to 10e6 and 0 to 60°, respectively. Distribution functions are introduced to mimic Bernoulli’s equation for calculating pressure at the inlet. Predicted Nusselt numbers are compared with

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da Silva, Raquel da Cunha Ribeiro, Carlos Salinas Sedano, Kamal A. R. Ismail, and Paúl Adrian Delgado Maldonado. "Empirical Heat Transfer Correlations during Frost Deposition on a Triangular Tube Banks Arrangement." Defect and Diffusion Forum 366 (April 2016): 88–96. http://dx.doi.org/10.4028/www.scientific.net/ddf.366.88.

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An experimental study was reported earlier on the development of frost formation by humid flow passing over the cylinder. In this study, dimensionless correlations used in previous experimental data, and reported empirical correlations of the Nusselt number, were used. This paper reports results of an experimental and numerical investigation where the emphasis was placed on obtaining empirical correlation for the Nusselt number. In this work some experimental results of the frost thickness around every cylinder in a triangular arrangement are presented, an estimated experimental correlation to

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Lin, Ta-Wei, Ming-Chang Wu, Li-Kang Liu, Chun-Jen Fang, and Ying-Huei Hung. "Cooling Performance of Using a Confined Slot Jet Impinging onto Heated Heat Sinks." Journal of Electronic Packaging 128, no. 1 (2005): 82–91. http://dx.doi.org/10.1115/1.2161426.

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A series of experimental investigations on the studies related to transient- and steady-state cooling performance from the horizontally heated heat sinks with a confined slot jet impingement have been conducted. The relevant parameters influencing the transient convective cooling performance include the steady-state Grashof number, ratio of jet separation distance to nozzle width, ratio of heat sink height to nozzle width, and jet Reynolds number. The transient heat transfer behaviors such as the temperature distribution, local and average Nusselt numbers on the heated heat sinks have been sys

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TSUZUKI, Nobuyoshi, Yasuyoshi KATO, Yasushi MUTO, Takao ISHIZUKA, Motoaki UTAMURA, and Masanori ARITOMI. "Nusselt Number Correlation of Microchannel Heat Exchanger with S-Shaped Fins." Transactions of the Atomic Energy Society of Japan 9, no. 1 (2010): 13–20. http://dx.doi.org/10.3327/taesj.j09.021.

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Taler, Dawid, and Anna Korzen. "Numerical modeling transient response of tubular cross flow heat exchanger." International Journal of Numerical Methods for Heat & Fluid Flow 28, no. 1 (2018): 81–91. http://dx.doi.org/10.1108/hff-10-2016-0406.

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Purpose The paper aims to present the mathematical modeling of plate fin and tube heat exchanger at small Reynolds numbers on the water side. The Reynolds number of the water flowing inside the tubes was varied in the range from 4,000 to 12,000. Design/methodology/approach A detailed analysis of transient response was modeled for the following changes in the operating parameters of the heat exchanger: a reduction in the water volume flow, an increase in the water volume flow and an increase in the water volume flow with a simultaneous reduction in the air flow velocity. Findings The results of

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Basit, Romana, Xinyang Li, Zheqing Huang, and Qiang Zhou. "Heat Transfer Studies of Arrays of Prolate Particles in Gas-Solid Flows." Mathematical Problems in Engineering 2020 (November 11, 2020): 1–12. http://dx.doi.org/10.1155/2020/6639172.

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Numerical study of forced convection heat transfer from arrays of prolate particles is performed using the second-order Immersed Boundary-Lattice Boltzmann Method (IB-LBM). Prolate particle is studied with aspect ratio of 2.5 with solid volume fraction variation from 0.1 to 0.3. For each solid volume fraction, arrays of prolate particles are generated and simulations have been performed to calculate Nusselt number for four different Hermans orientation factors and various Reynolds numbers. From the simulation results, it has been observed that, for any specific value of Hermans orientation fac

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Dissertations / Theses on the topic "Nusselt number correlation"

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Venter, Philip van Zyl. "A supercritical R-744 heat transfer simulation implementing various Nusselt number correlations / Philip van Zyl Venter." Thesis, North-West University, 2010. http://hdl.handle.net/10394/4234.

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During the past decade research has shown that global warming may have disastrous effects on our planet. In order to limit the damage that the human race seems to be causing, it was acknowledged that substances with a high global warming potential (GWP) should be phased out. In due time, R-134a with a GWP = 1300, may probably be phased out to make way for nature friendly refrigerants with a lower GWP. One of these contenders is carbon dioxide, R-744, with a GWP = 1. Literature revealed that various Nusselt number (Nu) correlations have been developed to predict the convection heat transfer coe

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Popoola, Olubunmi Tolulope. "Numerical, Analytical, and Experimental Studies of Reciprocating Mechanism Driven Heat Loops for High Heat Flux Cooling." FIU Digital Commons, 2017. https://digitalcommons.fiu.edu/etd/3505.

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The Reciprocating Mechanism Driven Heat Loop (RMDHL) is a novel heat transfer device that utilizes reciprocating flow, either single-phase or two-phase flow, to enhance the thermal management in high tech inventions. The device attains a high heat transfer rate through a reciprocating flow of the working fluid inside the heat transfer device. Although the concept of the device has been tested and validated experimentally, analytical or numerical studies have not been undertaken to understand its working mechanism and provide guidance for the device design. The objectives of this study are to u

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Book chapters on the topic "Nusselt number correlation"

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Sidebotham, George. "Nusselt Number Correlations." In Heat Transfer Modeling. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-14514-3_9.

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Taler, Dawid. "Determination of the Local and the Mean Heat Transfer Coefficient on the Inner Surface of a Single Tube and Finding Experimental Correlations for the Nusselt Number Calculation." In Numerical Modelling and Experimental Testing of Heat Exchangers. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-91128-1_13.

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Taler, Dawid, Jan Taler, and Marcin Trojan. "The CFD Based Method for Determining Heat Transfer Correlations on Individual Rows of Plate-Fin and Tube Heat Exchangers." In Heat Transfer - Design, Experimentation and Applications [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.97402.

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The chapter provides an analytical mathematical model of a car radiator, which includes different heat transfer coefficients (HTCs) on the first and second row of pipes. The air-side HTCs in the first and second row of pipes in the first and second pass were calculated using the correlations for the Nusselt number, which were determined by CFD simulation using the ANSYS software. Mathematical models of two radiators were built, one of which was manufactured of round tubes and the other of oval tubes. The model permits the determination of thermal output of the first and second row of tubes in the first and second pass. The small relative differences between the thermal capacities of the heat exchanger occur for different and uniform HTCs. However, the heat flow rate in the first row is much greater than the heat flow in the second row if the air-side HTCs are different on the first and second tube row compared to a case where the HTC is uniform in the whole heat exchanger. The heat transfer rates in both radiators calculated using the developed mathematical model were compared with those determined experimentally. The method for modeling of plate-fin and tube heat exchanger (PFTHE) proposed in the paper does not require empirical correlations to calculate HTCs both on the air side and on the inner surfaces of pipes. The presented method of calculating PFTHEs, considering different air-side HTCs evaluated using CFD modeling, may considerably reduce the cost of experimental research concerning new design heat exchangers implemented in manufacturing.

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Conference papers on the topic "Nusselt number correlation"

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Ducatti Marson, Rodrigo, José Alexandre Matelli, and Alex Bimbato. "NUSSELT NUMBER EXPERIMENTAL CORRELATION FOR FORCED CONVECTION IN FINNED ASTM TUBES." In 18th Brazilian Congress of Thermal Sciences and Engineering. ABCM, 2020. http://dx.doi.org/10.26678/abcm.encit2020.cit20-0088.

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Marcio Arêdes Martins and Leandro Soares de Oliveira. "A New Correlation for Conjugate Nusselt Number Applied to Cooling of Apples." In 2007 Minneapolis, Minnesota, June 17-20, 2007. American Society of Agricultural and Biological Engineers, 2007. http://dx.doi.org/10.13031/2013.23309.

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Pacio, J., M. Daubner, T. Wetzel, et al. "Experimental Nusselt Number in Rod Bundles Cooled by Heavy-Liquid Metals." In 2018 26th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/icone26-82213.

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A detailed safety assessment of innovative Generation IV reactor designs with heavy-liquid metal coolants, such as lead and lead-bismuth eutectic (LBE), requires an evaluation of the maximum core temperature in several postulated scenarios. Considering the complex geometry of fuel assemblies (FAs), and the low Prandtl number of the coolants, this flow scenario is challenging for the models used in numerical simulations, e.g. for relating the turbulent transport of momentum and heat. Thus, reliable experimental data are needed for validation. In recent years, a series of comprehensive heat tran

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Haider, Zeeshan, Ahmad Abbas, Jr., Javed Ahmad, Hamza Ikram, Shahid Ali Khan, and Rohaan Mehmood. "EMPIRICAL NUSSELT NUMBER CORRELATION FOR SINGLE PHASE FLOW THROUGH CORRUGATED PLATE HEAT EXCHANGER." In 3rd Thermal and Fluids Engineering Conference (TFEC). Begellhouse, 2018. http://dx.doi.org/10.1615/tfec2018.che.022154.

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Holling, M., and H. Herwig. "A NEW NUSSELT/RAYLEIGH NUMBER CORRELATION AND WALL FUNCTIONS FOR TURBULENT RAYLEIGH-BÉNARD CONVECTION." In Annals of the Assembly for International Heat Transfer Conference 13. Begell House Inc., 2006. http://dx.doi.org/10.1615/ihtc13.p6.10.

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Gnanasekaran, N., and C. Balaji. "A Correlation for Nusselt Number Under Turbulent Mixed Convection Using Transient Heat Transfer Experiments." In 2010 14th International Heat Transfer Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ihtc14-22428.

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This paper reports the results of an experimental investigation of transient, turbulent mixed convection in a vertical channel in which one of the walls is heated and the other is adiabatic. The goal is to simultaneously estimate the constants in a Nusselt number correlation whose form is assumed a priori by synergistically marrying the experimental results with repeated numerical calculations that assume guess values of the constants. The convective heat transfer coefficient “h” is replaced by the Nusselt number (Nu) which is then assumed to have a form Nu = a (1+RiD) b ReDc where a, b and c

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Lee, P. S., S. K. Chou, and Y. J. Lee. "Optimization of the Thermal Performance of Microchannel Heat Sinks Using Thermally Developing Nusselt Number Correlation." In 2008 10th Electronics Packaging Technology Conference (EPTC). IEEE, 2008. http://dx.doi.org/10.1109/eptc.2008.4763490.

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Shaver, Dillon R., Lane B. Carasik, Elia Merzari, Nate Salpeter, and Edward Blandford. "Calculation of Friction Factors and Nusselt Numbers for Twisted Elliptical Tube Heat Exchangers Using Nek5000." In ASME 2018 5th Joint US-European Fluids Engineering Division Summer Meeting. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/fedsm2018-83477.

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The development of fluoride salt-cooled high-temperature reactors (FHRs) for nuclear power generation relies on the development of new technologies. Of the potential options being explored, twisted elliptical tube geometries for heat exchanger design are promising based on usage in other industries. They are expected to offer significant enhancement in heat transfer with only a marginal increase in frictional losses. This allows them to be deployed in relatively compact designs that are well suited for FHRs. The presented work focuses on the computational fluid dynamics (CFD) simulations of he

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Saidi, Mohammad S., Firooz Rasouli, and Mohammad R. Hajaligol. "Heat Transfer Coefficient for a Packed Bed of Shredded Materials." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-42011.

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Heat transfer coefficient of packed beds of shredded materials such as biomass fuels at low Peclet numbers is of interest. Due to the dependence of flow distribution on particle shape, the application of the Nusselt number correlation of packed bed of spherical particles overestimates the rate of heat transfer. This discrepancy is even more pronounced due to channeling effect at low Peclet numbers. Here, based on applying a pore submodel and combining the numerical simulation and experimental results of a cylindrical packed bed, a new correlation is derived for apparent Nusselt number of the p

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Wu, M. C., Y. C. Lee, C. H. Peng, C. J. Fang, and Y. H. Hung. "Cooling Performance of Plain-Plate-Fin Heat Sinks With Slot Jet Impingement." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-13751.

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An experimental investigation on the thermal performance of slot jet impinging onto fully-confined and partially-confined heat sinks with plain-plate fins (ppf) is presented. The relevant parameters influencing the convective cooling performance with slot jet impingement include the ratio of heat sink height to jet separation distance (Hs/H), ratio of heat sink height to nozzle width (Hs/Wj) and jet Reynolds number (Rej). The thermal performance of fully-confined ppf heat sinks (Hs/H=1) is experimentally investigated. Besides, an effective theoretical model based on a developing channel flow w

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