World's Best Scientists 2026 revealed!

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Mechanical and Aerospace Engineering 47 1365 1260 18 18 330 8472

Hong G. Im publications per year

The chart shows the history of publications by Hong G. Im between 1989 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Hong G. Im published across 37 years, from 1989 to 2025, averaging 14.1 papers a year. Output peaked at 56 publications in 2022. 88 of the 522 publications appeared in the last two years.

No. of publications
10 20 30 40 50
Bar chart. Horizontal axis: year, 1989 to 2025. Vertical axis: number of publications, 0 to 56. Peak 56 publications in 2022. 1989: 1 publication 1990: 0 publications 1991: 1 publication 1992: 0 publications 1993: 1 publication 1994: 2 publications 1995: 3 publications 1996: 5 publications 1997: 1 publication 1998: 3 publications 1999: 2 publications 2000: 5 publications 2001: 3 publications 2002: 3 publications 2003: 3 publications 2004: 3 publications 2005: 13 publications 2006: 7 publications 2007: 13 publications 2008: 4 publications 2009: 9 publications 2010: 3 publications 2011: 8 publications 2012: 7 publications 2013: 3 publications 2014: 8 publications 2015: 17 publications 2016: 26 publications 2017: 31 publications 2018: 36 publications 2019: 33 publications 2020: 33 publications 2021: 45 publications 2022: 56 publications 2023: 46 publications 2024: 40 publications 2025: 48 publications
1989 2025

522 publications in total across all disciplines

View publications per year as a table
Hong G. Im: publications per year, 1989 to 2025
Year Publications
1989 1
1990 0
1991 1
1992 0
1993 1
1994 2
1995 3
1996 5
1997 1
1998 3
1999 2
2000 5
2001 3
2002 3
2003 3
2004 3
2005 13
2006 7
2007 13
2008 4
2009 9
2010 3
2011 8
2012 7
2013 3
2014 8
2015 17
2016 26
2017 31
2018 36
2019 33
2020 33
2021 45
2022 56
2023 46
2024 40
2025 48
Total 522
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Hong G. Im 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 Hong G. Im sits on this spectrum.

No. of scientists
50 100 150
Bar chart with 63 bars. Horizontal axis: publications, 47–56 to 659+. Vertical axis: number of scientists, 0 to 155. Most scientists, 155, have 147–156 publications. The last bar groups every scientist with 659 publications or more. The highlighted bar, 327–336 publications, is where this scientist sits. 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
47–56 publications 659+

This scientist: 330 publications — 78th percentile

78% of scientists in this discipline score the same or lower.

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

View publications distribution as a table
Number of Mechanical and Aerospace Engineering scientists by publication count, Research.com 2026 ranking edition. Based on 3,445 ranked scientists.
Publications Scientists This scientist
47–56 10
57–66 23
67–76 32
77–86 62
87–96 67
97–106 91
107–116 113
117–126 115
127–136 130
137–146 140
147–156 155
157–166 132
167–176 133
177–186 130
187–196 140
197–206 115
207–216 125
217–226 117
227–236 99
237–246 92
247–256 100
257–266 95
267–276 88
277–286 77
287–296 74
297–306 74
307–316 62
317–326 70
327–336 59 330
337–346 58
347–356 45
357–366 44
367–376 36
377–386 41
387–396 32
397–406 23
407–416 28
417–426 27
427–436 25
437–446 23
447–456 23
457–466 20
467–476 12
477–486 24
487–496 18
497–506 12
507–516 13
517–526 21
527–536 12
537–546 8
547–556 16
557–566 3
567–576 11
577–586 6
587–596 5
597–606 6
607–616 7
617–626 7
627–636 10
637–646 4
647–656 3
657–658 2
659+ 100
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Hong G. Im 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 Hong G. Im sits on this spectrum.

No. of scientists
50 100 150
Bar chart with 64 bars. Horizontal axis: D-Index, 30 to 93+. Vertical axis: number of scientists, 0 to 189. Most scientists, 189, have 34 D-Index. The last bar groups every scientist with 93 D-Index or more. The highlighted bar, 47 D-Index, is where this scientist sits. 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.

View D-Index distribution as a table
Number of Mechanical and Aerospace Engineering scientists by D-index, Research.com 2026 ranking edition. Based on 3,445 ranked scientists.
D-Index Scientists This scientist
30 83
31 113
32 144
33 153
34 189
35 158
36 139
37 127
38 130
39 126
40 104
41 100
42 107
43 101
44 103
45 79
46 88
47 70 47
48 83
49 44
50 64
51 56
52 50
53 48
54 58
55 52
56 48
57 42
58 34
59 42
60 37
61 42
62 44
63 22
64 33
65 29
66 23
67 29
68 24
69 19
70 34
71 26
72 19
73 18
74 19
75 14
76 19
77 8
78 18
79 16
80 12
81 17
82 11
83 16
84 7
85 9
86 8
87 6
88 6
89 7
90 10
91 4
92 4
93+ 100
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Research.com Recognitions

  • 2012 - Fellow of the American Society of Mechanical Engineers

Overview

Hong G. Im is affiliated with King Abdullah University of Science and Technology in Saudi Arabia. Their research primarily focuses on engineering and chemical engineering, with substantial contributions in the specialized areas of computational mechanics, fluid flow and transfer processes, aerospace engineering, automotive engineering, and biomedical engineering.

The scientist's extensive publication record reflects significant work in advanced combustion engine technologies, combustion and flame dynamics, and combustion and detonation processes. Other research topics include vehicle emissions and performance, heat transfer and supercritical fluids, biodiesel production and applications, and fluid dynamics and heat transfer.

Frequent coauthors collaborating with Hong G. Im include Francisco E. Hernández Pérez, Xinlei Liu, Emre Cenker, Junjun Guo, and Abdullah S. AlRamadan.

Prominent venues where Hong G. Im has published multiple articles are:

  • Combustion and Flame
  • SAE technical papers on CD-ROM/SAE technical paper series
  • Proceedings of the Combustion Institute
  • Fuel
  • International Journal of Engine Research

Selected recent papers authored by Hong G. Im cover a range of topics related to combustion and fluid processes, including:

  • "On the formation of hydrogen peroxide in water microdroplets," 2022, Chemical Science
  • "Computational characterization of hydrogen direct injection and nonpremixed combustion in a compression-ignition engine," 2021, International Journal of Hydrogen Energy
  • "Computational assessment of effects of throat diameter on combustion and turbulence characteristics in a pre-chamber engine," 2022, Applied Thermal Engineering
  • "Effects of Geometry on Passive Pre-Chamber Combustion Characteristics," 2020, SAE technical papers on CD-ROM/SAE technical paper series
  • "Computational comparison of the conventional diesel and hydrogen direct-injection compression-ignition combustion engines," 2021, Fuel

Among the recognitions received by the scientist is the designation as Fellow of the American Society of Mechanical Engineers, awarded in 2012.

Best Publications

  • Characteristic boundary conditions for simulations of compressible reacting flows with multi-dimensional, viscous and reaction effects

    Chun Sang Yoo;H. G. Im

  • Direct numerical simulation of ignition front propagation in a constant volume with temperature inhomogeneities: I. Fundamental analysis and diagnostics

    Jacqueline H. Chen;Evatt R. Hawkes;Ramanan Sankaran;Scott D. Mason

  • Characteristic boundary conditions for direct simulations of turbulent counterflow flames

    Chun Sang Yoo;Y Wang;A Trouve;HG Im

  • Structure and propagation of triple flames in partially premixed hydrogen-air mixtures

    H.G. Im;J.H. Chen

  • The effects of non-uniform temperature distribution on the ignition of a lean homogeneous hydrogen–air mixture

    Ramanan Sankaran;Hong G. Im;Evatt R. Hawkes;Jacqueline H. Chen

  • Correlation of flame speed with stretch in turbulent premixed methane/air flames

    Jacqueline H. Chen;Hong G. Im

  • Stretch effects on the burning velocity of turbulent premixed hydrogen/air flames

    Jacqueline B. Chen;Hong G. Im

  • Preferential diffusion effects on the burning rate of interacting turbulent premixed hydrogen-air flames

    Hong G. Im;Jacqueline H. Chen

  • Ignition of hydrogen-air mixing layer in turbulent flows

    H. G. Im;J. H. Chen;Chung King Law

  • Ozone Production With Dielectric Barrier Discharge: Effects of Power Source and Humidity

    Xuming Zhang;Bok Jik Lee;Hong G. Im;Min Suk Cha

  • Effects of flow strain on triple flame propagation

    Hong G Im;Jacqueline H Chen

  • Large eddy simulation of turbulent front propagation with dynamic subgrid models

    Hong G. Im;Thomas S. Lund;Joel H. Ferziger

  • Heavy fuel oil pyrolysis and combustion: kinetics and evolved gases investigated by TGA-FTIR

    Abdul Gani Abdul Jameel;Yunqing Han;Omar Brignoli;Omar Brignoli;Selvedin Telalović

  • Response of counterflow diffusion flames to oscillating strain rates

    H. G. Im;Chung King Law;J. S. Kim;F. A. Williams

  • Autoignition and front propagation in low temperature combustion engine environments

    Gaurav Bansal;Hong G. Im

  • A scalable silicon microreactor for preferential CO oxidation: performance comparison with a tubular packed-bed microreactor

    Sujit Srinivas;Amit Dhingra;Hong Im;Erdogan Gulari

  • Effects of hydrogen addition on the markstein length and flammability limit of stretched methane/air premixed flames

    Ramanan Sankaran;Hong G. Im

  • EFFECTS OF FLOW TRANSIENTS ON THE BURNING VELOCITY OF LAMINAR HYDROGEN/AIR PREMIXED FLAMES

    Hong G. Im;Jacqueline H. Chen

  • Development and application of a comprehensive soot model for 3D CFD reacting flow studies in a diesel engine

    Sangjin Hong;Margaret S. Wooldridge;Hong G. Im;Dennis N. Assanis

  • Computational characterization of hydrogen direct injection and nonpremixed combustion in a compression-ignition engine

    Rafig Babayev;Arne Andersson;Albert Serra Dalmau;Hong G. Im

  • Dynamic flammability limits of methane/air premixed flames with mixture composition fluctuations

    Ramanan Sankaran;Hong G. Im

Frequent Co-Authors

Bengt Johansson
Bengt Johansson Technical University of Denmark
Margaret S. Wooldridge
Margaret S. Wooldridge University of Michigan–Ann Arbor
S. Mani Sarathy
S. Mani Sarathy King Abdullah University of Science and Technology
Jacqueline H. Chen
Jacqueline H. Chen Sandia National Laboratories
Nilanjan Chakraborty
Nilanjan Chakraborty Newcastle University
Jyh-Yuan Chen
Jyh-Yuan Chen University of California, Berkeley
Dimitris A. Goussis
Dimitris A. Goussis Khalifa University
Dennis N. Assanis
Dennis N. Assanis University of Delaware
Chung King Law
Chung King Law Princeton University
Chun Sang Yoo
Chun Sang Yoo Ulsan National Institute of Science and Technology

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