Assessment of Thermal Performance of Functionally Graded Materials in Longitudinal Fins

Hassanzadeh, Rahim; Bilgili, Mehmet

doi:10.1007/s10891-018-1721-3

Cited by 13 publications

(10 citation statements)

References 39 publications

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“…Several existing works study the thermal performance of porous fin to improve the thermal characteristics of heatsinks using various key thermal parameters, 3‐8 key parameters such as fin geometry, 9‐11 thermal, electrical, and magnetic properties of the fin, 12‐16 media or surrounding flow, 17‐19 and materials 20,21 . Moreover, the use of materials with changing composition, microstructure, or porosity across the material volume has been identified as a reliable approach to improve thermal enhancement 22 . Functionally graded materials (FGMs) are nonhomogeneous materials of varying physical properties along a specific axis.…”

Section: Introductionmentioning

confidence: 99%

“…Functionally graded materials (FGMs) are nonhomogeneous materials of varying physical properties along a specific axis. FGM is popular due to its effective capability in a wide variety of applications, which necessitate the intense attention the investigation of fins of FGM is receiving in the literature 22‐29 …”

Section: Introductionmentioning

confidence: 99%

“…20,21 Moreover, the use of materials with changing composition, microstructure, or porosity across the material volume has been identified as a reliable approach to improve thermal enhancement. 22 Functionally graded materials (FGMs) are nonhomogeneous materials of varying physical properties along a specific axis. FGM is popular due to its effective capability in a wide variety of applications, which necessitate the intense attention the investigation of fins of FGM is receiving in the literature.…”

Section: Introductionmentioning

confidence: 99%

“…FGM is popular due to its effective capability in a wide variety of applications, which necessitate the intense attention the investigation of fins of FGM is receiving in the literature. [22][23][24][25][26][27][28][29] To this end, different new numerical and analytical methods have been proposed in the literature on the subject of thermal improvement using fins. [30][31][32][33][34][35][36][37][38] The main objective of the present work is to study the thermal behavior of a [Correction added on 30 May 2020, after first online publication: The word "porous" has been removed from this sentence] fin made of FGM under the influence of Lorentz force to develop thermally viable heat dissipating devices.…”

Section: Introductionmentioning

confidence: 99%

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Transient analysis of functionally graded material fin under the effect of Lorentz force using the integral transform method for improved electronic packaging

2020

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In the present work, transient analysis of longitudinal fin of functionally graded material under the influence of Lorentz force is considered. The governing equations of the linear, quadratic, and exponential functions are solved via Bessel, Legendre, and modified Bessel functions, respectively. The study investigates the effects of Lorentz force on the performance of the fin. The study shows that the transient response of the fin is lower in the linear law function compared with the exponential law function. The power law function shows significant energy‐saving capability than the linear class functionally graded material heatsink. Moreover, the thermal characteristic of the fin improves with an increase in the convective, radiative, magnetic field parameter, and nonhomogeneous index. The temperature prediction of the present study using the integral transform method is verified with the fourth‐order Runge‐Kutta method with an excellent agreement established.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Transient analysis of functionally graded material fin under the effect of Lorentz force using the integral transform method for improved electronic packaging

2020

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“…CSCM is applied in the present paper due to its well-established fast rate of convergence, suitability, and high-level of accuracy over most established numerical methods in the field of numerical simulations [24][25][26][27][28]. The thermal property of the FGM is assumed as a linear and power-law function [29,30]. The numerical solution obtained in the study is used to perform parametric studies on the effects of in-homogeneity index of FGM, convective and radiative variables on the thermal performance of the porous heatsink with FGM.…”

mentioning

confidence: 99%

Numerical Study of Performance of Porous Fin Heat Sink of Functionally Graded Material for Improved Thermal Management of Consumer Electronics

Oguntala

Sobamowo

Abd‐Alhameed

et al. 2019

IEEE Trans. Compon., Packag. Manufact. Technol.

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The ever-increasing demand for high performance electronic and computer systems has unequivocally called for increased microprocessor performance. However, increasing microprocessor performance requires increasing the power and on-chip power density of the microprocessor, both of which are associated with increased heat dissipation. In recent times, thermal management of electronic systems has gained intense research attention due to increased miniaturization trend in the electronics industry. In the paper, we present a numerical study on the performance of a convective-radiative porous heat sink with functionally graded material for improved cooling of various consumer electronics. For the theoretical investigation, the thermal property of the functionally graded material is assumed as a linear and power-law function. We solved the developed thermal models using Chebyshev spectral collocation method. The effects of in-homogeneity index of FGM, convective and radiative parameters on the thermal behaviour of the porous heat sink are investigated. The present study shows that increase in the in-homogeneity index of FGM, convective and radiative parameter improves the thermal efficiency of the porous fin heat sink. The thermal predictions made in this study using Chebyshev spectral collocation method agrees excellently with the established results of Runge-Kutta with shooting and homotopy analytical method.

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Solution of transient heat transfer in graded‐material fins of varying thickness under step changes in boundary conditions using the Lattice Boltzmann Method

Sahu

Bhowmick

2022

Heat Trans

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Graded materials (GM) possess superior thermo‐mechanical properties, which are not feasible to obtain with homogeneous materials (HM), and hence in this paper, the transient response of a longitudinal fin of varying geometry made up of GM is reported. The temperature‐dependent convection coefficient and heat generation parameters are considered to account for real‐world high‐temperature applications of fins. Fin material properties such as density and specific heat remain constant while thermal conductivity is assumed to vary axially based on four different physically possible variations namely, linear, quadratic, power, and exponential variations. The typical nonlinear differential equation obtained for fins was solved by using a mesoscopic scale‐based particle tracking method called the Lattice Boltzmann method. The Lattice Boltzmann solver has been implemented in form of an in‐house MATLAB code and validated with existing results, thereafter it is developed for solving the foregoing problems. The results obtained are reported for rectangular, triangular, convex, and concave profiles under step change in base temperature and base heat flux. The performance of graded fins is investigated in terms of time required to attain steady‐state and fin tip temperature which are inherent design parameters in the case of the transient fin. Inhomogeneity index and profile function have a significant effect on the performance of fin in terms of resistance to heat flow. Hereby, in comparison with HM fins, GM fins have lower resistance to heat flow irrespective of fin profiles. Concurrently, comparative analysis for fins of different profiles made of HM and GM is also done to facilitate the designer in selecting the most appropriate fins.

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Assessment of Thermal Performance of Functionally Graded Materials in Longitudinal Fins

Cited by 13 publications

References 39 publications

Transient analysis of functionally graded material fin under the effect of Lorentz force using the integral transform method for improved electronic packaging

Transient analysis of functionally graded material fin under the effect of Lorentz force using the integral transform method for improved electronic packaging

Numerical Study of Performance of Porous Fin Heat Sink of Functionally Graded Material for Improved Thermal Management of Consumer Electronics

Solution of transient heat transfer in graded‐material fins of varying thickness under step changes in boundary conditions using the Lattice Boltzmann Method

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