World's Best Scientists 2026 revealed!
Akio Tomiyama

Akio Tomiyama

D-Index & Metrics

Mechanical and Aerospace Engineering

D-Index
47
Citations
9597
World Ranking
1348
National Ranking
24

Akio Tomiyama publication distribution in Mechanical and Aerospace Engineering in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Mechanical and Aerospace Engineering in 2026. The highlighted bar marks where Akio Tomiyama sits on this spectrum.

47–56 publications: 10 scientists 57–66 publications: 23 scientists 67–76 publications: 32 scientists 77–86 publications: 62 scientists 87–96 publications: 67 scientists 97–106 publications: 91 scientists 107–116 publications: 113 scientists 117–126 publications: 115 scientists 127–136 publications: 130 scientists 137–146 publications: 140 scientists 147–156 publications: 155 scientists 157–166 publications: 132 scientists 167–176 publications: 133 scientists 177–186 publications: 130 scientists 187–196 publications: 140 scientists 197–206 publications: 115 scientists 207–216 publications: 125 scientists 217–226 publications: 117 scientists 227–236 publications: 99 scientists 237–246 publications: 92 scientists 247–256 publications: 100 scientists 257–266 publications: 95 scientists 267–276 publications: 88 scientists 277–286 publications: 77 scientists 287–296 publications: 74 scientists 297–306 publications: 74 scientists 307–316 publications: 62 scientists 317–326 publications: 70 scientists 327–336 publications: 59 scientists 337–346 publications: 58 scientists 347–356 publications: 45 scientists 357–366 publications: 44 scientists 367–376 publications: 36 scientists 377–386 publications: 41 scientists 387–396 publications: 32 scientists 397–406 publications: 23 scientists 407–416 publications: 28 scientists 417–426 publications: 27 scientists 427–436 publications: 25 scientists 437–446 publications: 23 scientists 447–456 publications: 23 scientists 457–466 publications: 20 scientists 467–476 publications: 12 scientists 477–486 publications: 24 scientists 487–496 publications: 18 scientists 497–506 publications: 12 scientists 507–516 publications: 13 scientists 517–526 publications: 21 scientists 527–536 publications: 12 scientists 537–546 publications: 8 scientists 547–556 publications: 16 scientists 557–566 publications: 3 scientists 567–576 publications: 11 scientists 577–586 publications: 6 scientists 587–596 publications: 5 scientists 597–606 publications: 6 scientists 607–616 publications: 7 scientists 617–626 publications: 7 scientists 627–636 publications: 10 scientists 637–646 publications: 4 scientists 647–656 publications: 3 scientists 657–658 publications: 2 scientists 659+ publications: 100 scientists
47 publications 659+

This scientist: 461 publications — 91st percentile

91% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 659 publications or more.

Akio Tomiyama D-index placement in Mechanical and Aerospace Engineering in 2026

The chart shows the D-index (discipline H-index) distribution of Mechanical and Aerospace Engineering scientists ranked by Research.com in 2026. The highlighted bar marks where Akio Tomiyama sits on this spectrum.

30 D-Index: 83 scientists 31 D-Index: 113 scientists 32 D-Index: 144 scientists 33 D-Index: 153 scientists 34 D-Index: 189 scientists 35 D-Index: 158 scientists 36 D-Index: 139 scientists 37 D-Index: 127 scientists 38 D-Index: 130 scientists 39 D-Index: 126 scientists 40 D-Index: 104 scientists 41 D-Index: 100 scientists 42 D-Index: 107 scientists 43 D-Index: 101 scientists 44 D-Index: 103 scientists 45 D-Index: 79 scientists 46 D-Index: 88 scientists 47 D-Index: 70 scientists 48 D-Index: 83 scientists 49 D-Index: 44 scientists 50 D-Index: 64 scientists 51 D-Index: 56 scientists 52 D-Index: 50 scientists 53 D-Index: 48 scientists 54 D-Index: 58 scientists 55 D-Index: 52 scientists 56 D-Index: 48 scientists 57 D-Index: 42 scientists 58 D-Index: 34 scientists 59 D-Index: 42 scientists 60 D-Index: 37 scientists 61 D-Index: 42 scientists 62 D-Index: 44 scientists 63 D-Index: 22 scientists 64 D-Index: 33 scientists 65 D-Index: 29 scientists 66 D-Index: 23 scientists 67 D-Index: 29 scientists 68 D-Index: 24 scientists 69 D-Index: 19 scientists 70 D-Index: 34 scientists 71 D-Index: 26 scientists 72 D-Index: 19 scientists 73 D-Index: 18 scientists 74 D-Index: 19 scientists 75 D-Index: 14 scientists 76 D-Index: 19 scientists 77 D-Index: 8 scientists 78 D-Index: 18 scientists 79 D-Index: 16 scientists 80 D-Index: 12 scientists 81 D-Index: 17 scientists 82 D-Index: 11 scientists 83 D-Index: 16 scientists 84 D-Index: 7 scientists 85 D-Index: 9 scientists 86 D-Index: 8 scientists 87 D-Index: 6 scientists 88 D-Index: 6 scientists 89 D-Index: 7 scientists 90 D-Index: 10 scientists 91 D-Index: 4 scientists 92 D-Index: 4 scientists 93+ D-Index: 100 scientists
30 D-Index 93+

This scientist: 47 D-Index — 61st percentile

61% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 93 D-Index or more.

Overview

Akio Tomiyama is affiliated with Kobe University in Japan and has an extensive research portfolio primarily in the field of Engineering. Their work spans across several specialized subfields including Computational Mechanics, Biomedical Engineering, Mechanical Engineering, Neurology, and Ocean Engineering.

The scientist's research topics focus on areas such as Fluid Dynamics and Mixing, Fluid Dynamics and Heat Transfer, Heat Transfer and Boiling Studies, Minerals Flotation and Separation Techniques, Nuclear Engineering Thermal-Hydraulics, Intracranial Aneurysms: Treatment and Complications, and Fluid Dynamics and Turbulent Flows.

Frequently publishing in academic venues, their work appears notably in:

  • Multiphase Science and Technology
  • JAPANESE JOURNAL OF MULTIPHASE FLOW
  • International Journal of Multiphase Flow
  • Nuclear Engineering and Design
  • Process Safety and Environmental Protection

Some of Akio Tomiyama's recent papers include:

  • Lift force coefficient of ellipsoidal single bubbles in water (2021, International Journal of Multiphase Flow)
  • Mass transfer from single carbon-dioxide bubbles in surfactant-electrolyte mixed aqueous solutions in vertical pipes (2020, International Journal of Multiphase Flow)
  • Scaling of Lift Reversal of Deformed Bubbles in Air-Water Systems (2021, International Journal of Multiphase Flow)
  • Pressure drops of air-water two-phase flows in horizontal U-bends (2020, International Journal of Multiphase Flow)
  • Lift Coefficients of Clean Ellipsoidal Bubbles in Linear Shear Flows (2020, International Journal of Multiphase Flow)

Throughout their career, Akio Tomiyama has collaborated frequently with several researchers including Kosuke Hayashi, Ryo Kurimoto, Michio Murase, Hidehito Kimura, and Shigeo Hosokawa.

Best Publications

  • Transverse migration of single bubbles in simple shear flows

    Akio Tomiyama;Hidesada Tamai;Iztok Zun;Shigeo Hosokawa

  • Struggle with computational bubble dynamics

    Tomiyama A

  • Drag Coefficients of Single Bubbles under Normal and Micro Gravity Conditions

    Akio Tomiyama;Isao Kataoka;Iztok Zun;Tadashi Sakaguchi

  • Terminal velocity of single bubbles in surface tension force dominant regime

    A. Tomiyama;G.P. Celata;S. Hosokawa;S. Yoshida

  • Effects of cavitation in a nozzle on liquid jet atomization

    Akira Sou;Shigeo Hosokawa;Akio Tomiyama

  • Effects of Eötvös Number and Dimensionless Liquid Volumetric Flux on Lateral Motion of a Bubble in a Laminar Duct Flow

    A. Tomiyama;A. Sou;I. Zun;N. Kanami

  • Lateral Migration of Single Bubbles Due to the Presence of Wall

    Shigeo Hosokawa;Akio Tomiyama;Shinji Misaki;Tomoyuki Hamada

  • Numerical analysis of bubble motion with the VOF method

    Akio Tomiyama;Iztok Zun;Akira Sou;Tadashi Sakaguchi

  • Simulation of Bubble Motion under Gravity by Lattice Boltzmann Method

    Naoki Takada;Masaki Misawa;Akio Tomiyama;Shigeo Hosokawa

  • On the role of the lateral lift force in poly-dispersed bubbly flows

    D. Lucas;A. Tomiyama

  • Influence of Electric Field on Single Gas-Bubble Growth and Detachment in Microgravity

    P Di Marco;W Grassi;G Memoli;T Takamasa

  • Numerical simulation of incipient cavitation flow in a nozzle of fuel injector

    Akira Sou;Barış Biçer;Akio Tomiyama

  • Shapes of ellipsoidal bubbles in infinite stagnant liquids

    S. Aoyama;K. Hayashi;S. Hosokawa;A. Tomiyama

  • Measurements of rising velocity of a small bubble in a stagnant fluid in one- and two-component systems

    Gian Piero Celata;Francesco D’Annibale;Paolo Di Marco;Gianluca Memoli

  • Numerical Analysis of a Single Bubble by VOF Method.

    Akio Tomiyama;Akira Sou;Hisato Minagawa;Tadashi Sakaguchi

  • Multi-fluid simulation of turbulent bubbly pipe flows

    Shigeo Hosokawa;Akio Tomiyama

  • Turbulence modification in gas–liquid and solid–liquid dispersed two-phase pipe flows

    Shigeo Hosokawa;Akio Tomiyama

  • A three-dimensional particle tracking method for bubbly flow simulation

    A. Tomiyama;I. Žun;H. Higaki;Y. Makino

  • Numerical simulation of two- and three-dimensional two-phase fluid motion by lattice Boltzmann method

    Naoki Takada;Masaki Misawa;Akio Tomiyama;Shinya Fujiwara

  • Mass transfer from a bubble in a vertical pipe

    Shogo Hosoda;Satoru Abe;Shigeo Hosokawa;Akio Tomiyama

  • Two-phase Flow Patterns in a Four by Four Rod Bundle

    Yoshitaka Mizutani;Akio Tomiyama;Shigeo Hosokawa;Akira Sou

  • Paper ID ICLASS06-043 EFFECTS OF CAVITATION IN A NOZZLE ON LIQUID JET ATOMIZATION

    Akira Sou;Maulana Muhammad Ilham;Shigeo Hosokawa;Akio Tomiyama

Frequent Co-Authors

Dirk Lucas
Dirk Lucas Helmholtz-Zentrum Dresden-Rossendorf
Gian Piero Celata
Gian Piero Celata National Agency For New Technologies, Energy and Sustainable Economic Development
Gretar Tryggvason
Gretar Tryggvason Johns Hopkins University
Gherhardt Ribatski
Gherhardt Ribatski Universidade de São Paulo
Yoichiro Matsumoto
Yoichiro Matsumoto University of Tokyo

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