H. Koyama

945 total citations
48 papers, 758 citations indexed

About

H. Koyama is a scholar working on Computational Mechanics, Biomedical Engineering and Mechanical Engineering. According to data from OpenAlex, H. Koyama has authored 48 papers receiving a total of 758 indexed citations (citations by other indexed papers that have themselves been cited), including 42 papers in Computational Mechanics, 27 papers in Biomedical Engineering and 26 papers in Mechanical Engineering. Recurrent topics in H. Koyama's work include Nanofluid Flow and Heat Transfer (27 papers), Fluid Dynamics and Turbulent Flows (17 papers) and Heat and Mass Transfer in Porous Media (15 papers). H. Koyama is often cited by papers focused on Nanofluid Flow and Heat Transfer (27 papers), Fluid Dynamics and Turbulent Flows (17 papers) and Heat and Mass Transfer in Porous Media (15 papers). H. Koyama collaborates with scholars based in Japan, India and United States. H. Koyama's co-authors include Akira Nakayama, Fujio Kuwahara, Aroon Shenoy, Ryohei Nakayama, Emi Honda, Hitoshi Yamada, K. Satô and Takashi Shimizu and has published in prestigious journals such as International Journal of Heat and Mass Transfer, AIChE Journal and AIAA Journal.

In The Last Decade

H. Koyama

48 papers receiving 707 citations

Peers

H. Koyama

FFTP

Jostein Pettersen Norway

V. M. K. Sastri India

Jialong Yang China

Abdalla M. Al-Amiri United Arab Emirates

S. Ghosh Moulic India

A. Raji Morocco

A. Amahmid Morocco

Rama Subba Reddy Gorla United States

A. Y. Bakier Egypt

M. Naveed Pakistan

Jostein Pettersen Norway

H. Koyama

250 ×0.4

448 ×0.8

963 ×2.6

49 ×1.2

FFTP

16 ×0.4

Citations per year, relative to H. Koyama H. Koyama (= 1×) peers Jostein Pettersen

Countries citing papers authored by H. Koyama

Since Specialization

Citations

This map shows the geographic impact of H. Koyama's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by H. Koyama with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites H. Koyama more than expected).

Fields of papers citing papers by H. Koyama

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by H. Koyama. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by H. Koyama. The network helps show where H. Koyama may publish in the future.

Co-authorship network of co-authors of H. Koyama

This figure shows the co-authorship network connecting the top 25 collaborators of H. Koyama. A scholar is included among the top collaborators of H. Koyama based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with H. Koyama. H. Koyama is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Honda, Emi, et al.. (2015). Computer-Aided Diagnosis Scheme for Distinguishing Between Benign and Malignant Masses in Breast DCE-MRI. Journal of Digital Imaging. 29(3). 388–393. 22 indexed citations

Kuwahara, Fujio, Akira Nakayama, & H. Koyama. (1996). A Numerical Study of Thermal Dispersion in Porous Media. Journal of Heat Transfer. 118(3). 756–761. 116 indexed citations

Kuwahara, Fujio, Akira Nakayama, & H. Koyama. (1996). A Study on Thermal Dispersion in Fluid Flow and Heat Transfer in Porous Media. Numerical Prediction of Thermal Dispersion Using a Two-Dimensional Structural Model.. TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B. 62(600). 3118–3124. 1 indexed citations

Nakayama, Akira, et al.. (1990). Non-Darcian Boundary Layer Flow and Forced Convective Heat Transfer Over a Flat Plate in a Fluid-Saturated Porous Medium. Journal of Heat Transfer. 112(1). 157–162. 48 indexed citations

Nakayama, Akira & H. Koyama. (1989). Similarity solutions for buoyancy-induced flows over a non-isothermal curved surface in a thermally stratified porous medium. Flow Turbulence and Combustion. 46(4). 309–322. 24 indexed citations

Nakayama, Akira, H. Koyama, & Fujio Kuwahara. (1988). An analysis on forced convection in a channel filled with a Brinkman-Darcy porous medium: Exact and approximate solutions. Wärme- und Stoffübertragung. 23(5). 291–295. 57 indexed citations

Nakayama, Akira & H. Koyama. (1988). Subcooled forced convection film boiling over a vertical flat plate embedded in a fluid-saturated porous medium. Wärme- und Stoffübertragung. 22(5). 269–273. 2 indexed citations

Nakayama, Akira & H. Koyama. (1987). Effect of thermal stratification on free convection within a porous medium. Journal of Thermophysics and Heat Transfer. 1(3). 282–285. 43 indexed citations

Nakayama, Akira, H. Koyama, & Fujio Kuwahara. (1987). Two-Phase Boundary Layer Treatment for Subcooled Free-Convection Film Boiling Around a Body of Arbitrary Shape in a Porous Medium. Journal of Heat Transfer. 109(4). 997–1002. 1 indexed citations

10.

Nakayama, Akira & H. Koyama. (1987). An integral method for free convection from a vertical heated surface in a thermally stratified porous medium. Wärme- und Stoffübertragung. 21(5). 297–300. 14 indexed citations

11.

Nakayama, Akira & H. Koyama. (1987). An integral method for combined free and forced convection within a fluid saturated porous medium. Flow Turbulence and Combustion. 44(3). 333–340. 4 indexed citations

12.

Nakayama, Akira & H. Koyama. (1986). An asymptotic expression for forced convection in non-Newtonian power-law fluids. International Journal of Heat and Fluid Flow. 7(2). 99–101. 4 indexed citations

13.

Nakayama, Akira & H. Koyama. (1986). Integral treatment of subcooled forced convection film boiling on a flat plate. Wärme- und Stoffübertragung. 20(2). 121–126. 7 indexed citations

14.

Nakayama, Akira & H. Koyama. (1986). Analysis of combined free and forced convection film boiling. Part I: Forced and free convection regions. AIChE Journal. 32(1). 142–145. 1 indexed citations

15.

Koyama, H., et al.. (1985). Theoretical and experimental study of free convection from a vertical frustum of a cone of a finite length. International Journal of Heat and Mass Transfer. 28(5). 969–976. 8 indexed citations

16.

Nakayama, Akira, et al.. (1984). Momentum/Heat-Transfer Analogy for Turbulent Boundary Layers in Mild Pressure Gradients. AIAA Journal. 22(6). 841–844. 1 indexed citations

17.

Nakayama, Akira, et al.. (1984). Self-similar thermal boundary layers on plane and axisymmetric bodies. Wärme- und Stoffübertragung. 18(2). 69–73. 9 indexed citations

18.

Nakayama, Akira, et al.. (1982). Free convection from a cone with a closed end. Letters in Heat and Mass Transfer. 9(6). 455–462. 5 indexed citations

19.

Koyama, H. & Akira Nakayama. (1982). An integral method in free convection flows under non-uniform gravity. Letters in Heat and Mass Transfer. 9(3). 151–158. 7 indexed citations

20.

Koyama, H., Akira Nakayama, K. Satô, & Takashi Shimizu. (1977). Local Mass Transfer From Rotating Wedge-Shaped Blades. Journal of Heat Transfer. 99(4). 634–640. 2 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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