H
Hitoshi Koyama
Researcher at Shizuoka University
Publications - 41
Citations - 725
Hitoshi Koyama is an academic researcher from Shizuoka University. The author has contributed to research in topics: Heat transfer & Natural convection. The author has an hindex of 12, co-authored 41 publications receiving 700 citations.
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A Numerical Study of Thermal Dispersion in Porous Media
TL;DR: In this paper, thermal dispersion in convective flow in porous media has been numerically investigated using a two-dimensional periodic model of porous structure, where a macroscopically uniform flow is assumed to pass through a collection of square rods placed regularly in an infinite space.
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Buoyancy-induced flow of non-Newtonian fluids over a non-isothermal body of arbitrary shape in a fluid-saturated porous medium
Akira Nakayama,Hitoshi Koyama +1 more
TL;DR: In this article, the boundary layer approximations and the power-law model were used to characterize buoyancy-induced flows of non-Newtonian fluids over non-isothermal bodies of arbitrary shape within saturated porous media.
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A General Similarity Transformation for Combined Free and Forced-Convection Flows Within a Fluid-Saturated Porous Medium
Akira Nakayama,Hitoshi Koyama +1 more
TL;DR: In this paper, the authors introduced a general transformation procedure appropriate to the problem of combined free and forced convection in a porous medium and showed that particular transformations proposed in the previous papers by Cheng and Minkowycz and co-workers are simply the specific forms of the present general transformation.
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Free Convective Heat Transfer Over a Nonisothermal Body of Arbitrary Shape Embedded in a Fluid-Saturated Porous Medium
Akira Nakayama,Hitoshi Koyama +1 more
TL;DR: In this article, the problem of free convective heat transfer from a nonisothermal ar axisymmetric body of arbitrary geometric configuration in a fluid-saturated porous medium was analyzed on the basis of boundary layer approximations.
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Non-Darcian Boundary Layer Flow and Forced Convective Heat Transfer Over a Flat Plate in a Fluid-Saturated Porous Medium
TL;DR: In this paper, the local similarity solution procedure was successfully adopted to investigate non-Darcian flow and heat transfer through a boundary layer developed over a horizontal flat plate in a highly porous medium.