# numerical prediction of effective thermal conductivity of

### Numerical Prediction of the Effective Thermal Conductivity

This paper investigates the thermal properties of a new type of hollow sphere struc- tures. For this new type the sphere shell is perforated by several conical holes in order to open the inner sphere volume. The effective thermal conductivity of perforated sphere structures in a primitive cubic arrangement is numerically evaluated for different material combinations and compared to sphere

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Numerical prediction of the thermal conductivity of fibers a correlation formula is developed to predict the thermal conductivities of fiber as function of the effective thermal conductivity

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This paper investigates the thermal properties of a new type of hollow sphere struc- tures. For this new type the sphere shell is perforated by several conical holes in order to open the inner sphere volume. The effective thermal conductivity of perforated sphere structures in a primitive cubic arrangement is numerically evaluated for different material combinations and compared to sphere

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(2016). Numerical predictions of the effective thermal conductivity for needled C/C-SiC composite materials. Numerical Heat Transfer Part A Applications Vol. 70 No. 10 pp. .

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Numerical Prediction of Heat Transfer Characteristics of Nanofluids in a Minichannel Flow. "Effective thermal conductivity and thermal diffusivity of nanofluids containing spherical and cylindrical nanoparticles " Journal of Applied Physics vol. 100 no. 4 Article ID 044325 5 pages 2006.

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A two-dimensional numerical model capable of calculating the effective thermal conductivity and temperature distribution in aligned fiber composites was developed. To determine the validity of

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The commercial software is an efficient numerical tool to determine the effective thermal conductivity of the composite materials but it cannot read or reconstruct the complicated struc- ture of

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Abstract A reconstruction method is proposed for the polyurethane foam and then a complete numerical method is developed to predict the effective thermal conductivity of the polyurethane foam.

Get Price### A PREDICTION OF EFFECTIVE THERMAL CONDUCTIVITY OF

the effective thermal conductivity of HDPE composites as filler content up to 16 volume as Shape of particle sphere and cubes further compared the effective conductivity with empirical and experimental results. Nayak et al. 15 they studied the thermal conductivity of

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A numerical method has been proposed for predicting the effective thermal conductivity of dendritic mushy zones as a function of fraction solid. The proposed method estimates the value of the effective thermal conductivity by the finite-difference method using known morphologies of the mushy zone. Numerical solutions are presented for some simple two-dimensional shapes approximating columnar

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On the basis of the generated structure the lattice Boltzmann method D2Q9 is adopted to predict the effective thermal conductivity. The results are agreed well with published data which

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(2016). Numerical predictions of the effective thermal conductivity for needled C/C-SiC composite materials. Numerical Heat Transfer Part A Applications Vol. 70 No. 10 pp. .

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Mesoscopic predictions of the effective thermal conductivity for microscale random porous media Moran Wang 1 Jinku Wang 2 Ning Pan 1 and Shiyi Chen3 1Department of Biological Agricultural Engineering University of California Davis California 95616 USA 2School of Aerospace Tsinghua University Beijing 100084 China 3Department of Mechanical Engineering Johns Hopkins University

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Numerical prediction of effective thermal conductivity of ceramic fiber board using lattice Boltzmann method

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The numerical results show that the predicted effective thermal conductivity varies with the lattice number in the third dimension following an exponential relationship and it needs at least 20

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Tao (2016) Numerical predictions of the effective thermal conductivity for needled C/C-SiC composite materials Numerical Heat Transfer Part A Applications 70 10 DOI 10.1080/.2016.

Get Price### PREDICTION OF EFFECTIVE THERMAL CONDUCTIVITY OF

Numerous numerical and theoretical predictions have been proposed in the literature to study the thermal properties of composite materials 15 16 . The problem for most of analytical models is the estimation of Prediction of effective thermal conductivity of heterogeneous random multi-phase composites 97 Fig 5.

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The effective thermal conductivity of 3D four-directional braid- ed composites has been predicted in 11 18–20 . Most of the researchers 19 20 claimed that their models are reliable based on the

Get Price### Effective thermal conductivity of particulate composites

Aug 17 1998 · A methodology is introduced for predicting the effective thermal conductivity of arbitrary particulate composites with interfacial thermal resistance in terms of an effective medium approach combined with the essential concept of Kapitza thermal contact resistance. Results of the present model are compared to existing models and available experimental results.

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Abstract A reconstruction method is proposed for the polyurethane foam and then a complete numerical method is developed to predict the effective thermal conductivity of the polyurethane foam. The

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Numerical Prediction of the Effective Thermal Conductivity of Open- and Closed-Cell Foam Structures p.1210 The Nature of the Vacancy-Wind Effect Occurring in

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(2016). Numerical predictions of the effective thermal conductivity for needled C/C-SiC composite materials. Numerical Heat Transfer Part A Applications Vol. 70 No. 10 pp. .

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The commercial software is an efficient numerical tool to determine the effective thermal conductivity of the composite materials but it cannot read or reconstruct the complicated struc- ture of

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Prediction of effective thermal conductivities of woven fabric However few numerical studies are available for effective thermal properties of woven fabric composites.5 Dasgupta et al.5 6 ﬁrst pre- lated the effective thermal conductivity of ceramic-matrix

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A two-dimensional numerical model capable of calculating the effective thermal conductivity and temperature distribution in aligned fiber composites was developed. To determine the validity of

Get Price### Numerical predictions of the effective thermal

The commercial software is an efficient numerical tool to determine the effective thermal conductivity of the composite materials but it cannot read or reconstruct the complicated struc- ture of

Get Price### Numerical analysis of effective thermal conductivity of

The numerical results show that the predicted effective thermal conductivity varies with the lattice number in the third dimension following an exponential relationship and it needs at least 20

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Mar 30 2015 · The present method was then adopted to numerically predict the transverse and longitudinal effective thermal conductivities of three-dimensional (3D) four-directional braided composites. Some corresponding experiments based on the Hot Disk method were conducted to measure their transverse and longitudinal effective thermal conductivities.

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On the basis of the generated structure the lattice Boltzmann method D2Q9 is adopted to predict the effective thermal conductivity. The results are agreed well with published data which

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