An Efficient Numerical Method Based on Double Porosity Model to Analyze Heat and Fluid Flows in Fractured Rock Formation

Shigeo Kimura; Yoshio Masuda; Kazuo Hayashi

doi:10.1299/kikaib.57.2083

An Efficient Numerical Method Based on Double Porosity Model to Analyze Heat and Fluid Flows in Fractured Rock Formation

Shigeo Kimura, Yoshio Masuda, Kazuo Hayashi

Institute of Fluid Science (IFS)

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

An efficient numerical method based on the double porosity model is proposed in order to analyze the heat and fluid flows in fractured rock formation. A specific problem to which the present nemerical method is applied assumes a single vertical or horizontal fracture that drains heat from neighboring blocks of homogeneous and isotropic impermeable rock. The outlet temperature history is monitored to evaluate the amount of heat extraction from the rock. The numerical results are favorably compared with the available analytical data. The present method is proven to be ten times more efficient than a conventional algorithm. The method can be extended to three-dimensional space or complex fracture networks.

Original language	English
Pages (from-to)	2083-2087
Number of pages	5
Journal	Transactions of the Japan Society of Mechanical Engineers Series B
Volume	57
Issue number	538
DOIs	https://doi.org/10.1299/kikaib.57.2083
Publication status	Published - 1991

Keywords

Convective Heat Transfer
Fractured Media
Heat Extraction
Hot Dry Rock Double Porosity
Numerical Analysis
Thermal Engineering

ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering

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abstract = "An efficient numerical method based on the double porosity model is proposed in order to analyze the heat and fluid flows in fractured rock formation. A specific problem to which the present nemerical method is applied assumes a single vertical or horizontal fracture that drains heat from neighboring blocks of homogeneous and isotropic impermeable rock. The outlet temperature history is monitored to evaluate the amount of heat extraction from the rock. The numerical results are favorably compared with the available analytical data. The present method is proven to be ten times more efficient than a conventional algorithm. The method can be extended to three-dimensional space or complex fracture networks.",

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AU - Kimura, Shigeo

AU - Masuda, Yoshio

AU - Hayashi, Kazuo

PY - 1991

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N2 - An efficient numerical method based on the double porosity model is proposed in order to analyze the heat and fluid flows in fractured rock formation. A specific problem to which the present nemerical method is applied assumes a single vertical or horizontal fracture that drains heat from neighboring blocks of homogeneous and isotropic impermeable rock. The outlet temperature history is monitored to evaluate the amount of heat extraction from the rock. The numerical results are favorably compared with the available analytical data. The present method is proven to be ten times more efficient than a conventional algorithm. The method can be extended to three-dimensional space or complex fracture networks.

AB - An efficient numerical method based on the double porosity model is proposed in order to analyze the heat and fluid flows in fractured rock formation. A specific problem to which the present nemerical method is applied assumes a single vertical or horizontal fracture that drains heat from neighboring blocks of homogeneous and isotropic impermeable rock. The outlet temperature history is monitored to evaluate the amount of heat extraction from the rock. The numerical results are favorably compared with the available analytical data. The present method is proven to be ten times more efficient than a conventional algorithm. The method can be extended to three-dimensional space or complex fracture networks.

KW - Convective Heat Transfer

KW - Fractured Media

KW - Heat Extraction

KW - Hot Dry Rock Double Porosity

KW - Numerical Analysis

KW - Thermal Engineering

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An Efficient Numerical Method Based on Double Porosity Model to Analyze Heat and Fluid Flows in Fractured Rock Formation

Abstract

Keywords

ASJC Scopus subject areas

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