World's Best Scientists 2026 revealed!

D-Index & Metrics

Mechanical and Aerospace Engineering

D-Index
30
Citations
3935
World Ranking
3385
National Ranking
1141

Phil Ligrani 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 Phil Ligrani 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: 117 publications — 12th percentile

12% of scientists in this discipline score the same or lower.

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

Phil Ligrani 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 Phil Ligrani 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: 30 D-Index — 2nd percentile

2% of scientists in this discipline score the same or lower.

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

Research.com Recognitions

  • 2000 - Fellow of the American Society of Mechanical Engineers

Overview

Phil Ligrani is affiliated with the University of Alabama in Huntsville in the United States. Their research spans multiple disciplines within engineering and materials science, with a focus on fluid dynamics, rheology, and heat transfer.

The scientist's main fields of study include:

  • Engineering
  • Materials Science

Their work also extends into several subfields, such as:

  • Materials Chemistry
  • Computational Mechanics
  • Fluid Flow and Transfer Processes
  • Mechanical Engineering
  • Aerospace Engineering

Phil Ligrani's research topics cover several technical areas, including:

  • Fluid Dynamics and Turbulent Flows
  • Rheology and Fluid Dynamics Studies
  • Heat Transfer Mechanisms
  • Turbomachinery Performance and Optimization
  • Surfactants and Colloidal Systems
  • Material Dynamics and Properties
  • Gas Dynamics and Kinetic Theory

The scientist has contributed articles to several publication venues, among them:

  • Fluids
  • International Journal of Heat and Mass Transfer
  • Microfluidics and Nanofluidics

Recent papers by Phil Ligrani include:

  • Effects of coolant supply arrangement on double wall cooling: Hot-side effusion performance and cold-side Nusselt numbers at different initial blowing ratios, 2020, International Journal of Heat and Mass Transfer
  • Relative Influences of Inertia and Polymeric Viscoelastic Effects on Nusselt Numbers within Rotating Couette Flows, 2023, Fluids
  • Characterization of Effective Diffusion within Viscoelastic Fluids with Elastic Instabilities, 2022, Fluids
  • Rarefaction slip phenomena within a viscous disk pump with molecular mean free path sized surface roughness elements, 2025, Microfluidics and Nanofluidics

Frequent coauthors working alongside Phil Ligrani include:

  • Valerie Hietsch
  • Mengying Su
  • Austin Click
  • D. A. Ritchie
  • Federico Liberatore

Among accolades, Phil Ligrani was named a Fellow of the American Society of Mechanical Engineers in 2000.

Best Publications

  • Comparison of Heat Transfer Augmentation Techniques

    Unknown

  • Heat transfer in a dimpled channel: combined influences of aspect ratio, temperature ratio, Reynolds number, and flow structure

    Unknown

  • Flow structure due to dimple depressions on a channel surface

    Unknown

  • Heat Transfer Augmentation Technologies for Internal Cooling of Turbine Components of Gas Turbine Engines

    Unknown

  • Overtip Shock Wave Structure and Its Impact on Turbine Blade Tip Heat Transfer

    Q. Zhang;D. O. O’Dowd;L. He;A. P. S. Wheeler

  • Transonic Turbine Blade Tip Aerothermal Performance With Different Tip Gaps—Part I: Tip Heat Transfer

    Q. Zhang;D. O. O’Dowd;L. He;M. L. G. Oldfield

  • Numerical Simulation of Laminar Flow and Heat Transfer Inside a Microchannel With One Dimpled Surface

    X. J. Wei;Y. K. Joshi;P. M. Ligrani

  • Analysis and Experiments on Three-Dimensional, Irregular Surface Roughness

    Unknown

  • Spatially-resolved heat transfer and flow structure in a rectangular channel with pin fins

    S.Y. Won;G.I. Mahmood;P.M. Ligrani

  • Comparisons of flow structure above dimpled surfaces with different dimple depths in a channel

    Se Youl Won;Qiang Zhang;Phillip M. Ligrani

  • Effects of Mach number and Reynolds number on jet array impingement heat transfer

    Matt Goodro;Jongmyung Park;Phil Ligrani;Phil Ligrani;Mike Fox

  • Effects of hole spacing on spatially-resolved jet array impingement heat transfer

    Matt Goodro;Jongmyung Park;Phil Ligrani;Mike Fox

  • Local Swirl Chamber Heat Transfer and Flow Structure at Different Reynolds Numbers

    C. R. Hedlund;P. M. Ligrani

  • Nusselt Numbers and Flow Structure on and Above a Shallow Dimpled Surface Within a Channel Including Effects of Inlet Turbulence Intensity Level

    P. M. Ligrani;N. K. Burgess;S. Y. Won

  • Miniature five-hole pressure probe for measurement of three mean velocity components in low-speed flows

    P M Ligrani;B A Singer;L R Baun

  • Comparison of Heat Transfer Measurement Techniques on a Transonic Turbine Blade Tip

    D. O. O’Dowd;Q. Zhang;L. He;P. M. Ligrani

  • NUMERICAL PREDICTIONS OF FLOW STRUCTURE AND LOCAL NUSSELT NUMBER RATIOS ALONG AND ABOVE DIMPLED SURFACES WITH DIFFERENT DIMPLE DEPTHS IN A CHANNEL

    Se Youl Won;P. M. Ligrani

  • Effects of Dean vortex pairs on surface heat transfer in curved channel flow

    P.M. Ligrani;S. Choi;A.R. Schallert;P. Skogerboe

  • Flow phenomena in swirl chambers

    P. M. Ligrani;C. R. Hedlund;B. T. Babinchak;R. Thambu

  • Heat Transfer, Adiabatic Effectiveness, and Injectant Distributions Downstream of a Single Row and Two Staggered Rows of Compound Angle Film-Cooling Holes

    P. M. Ligrani;S. Ciriello;D. T. Bishop

  • Separate Effects of Mach Number and Reynolds Number on Jet Array Impingement Heat Transfer

    Jongmyung Park;Matt Goodro;Phil Ligrani;Mike Fox

  • Cross-flow effects on impingement array heat transfer with varying jet-to-target plate distance and hole spacing

    Unknown

  • Aero-Thermal Performance of a Winglet at Engine Representative Mach and Reynolds Numbers

    D. O. O’Dowd;Q. Zhang;L. He;M. L. G. Oldfield

  • Heat Transfer and Flow Phenomena in a Swirl Chamber Simulating Turbine Blade Internal Cooling

    C. R. Hedlund;P. M. Ligrani;H.-K. Moon;B. Glezer

  • Single-disk and double-disk viscous micropumps

    Danny Blanchard;Phil Ligrani;Bruce Gale

  • Crossflows from jet array impingement cooling: Hole spacing, target plate distance, Reynolds number effects

    Unknown

  • Spatial resolution and downwash velocity corrections for multiple-hole pressure probes in complex flows

    P. M. Ligrani;B. A. Singer;L. R. Baun

  • Spatially Resolved Surface Heat Transfer for Parallel Rib Turbulators With 45 Deg Orientations Including Test Surface Conduction Analysis

    S. Y. Won;N. K. Burgess;S. Peddicord;P. M. Ligrani

  • Miniature Single-Disk Viscous Pump (Single-DVP), Performance Characterization

    Danny Blanchard;Phil Ligrani;Bruce Gale

  • Heat transfer in a swirl chamber at different temperature ratios and Reynolds numbers

    C.R. Hedlund;P.M. Ligrani;B. Glezer;H.-K. Moon

  • Full-Coverage Film Cooling: Film Effectiveness and Heat Transfer Coefficients for Dense and Sparse Hole Arrays at Different Blowing Ratios

    Phil Ligrani;Matt Goodro;Mike Fox;Hee-Koo Moon

Frequent Co-Authors

Qiang Zhang
Qiang Zhang Tsinghua University
Bruce K. Gale
Bruce K. Gale University of Utah
J. Calvin Giddings
J. Calvin Giddings University of Utah
Marcus N. Myers
Marcus N. Myers University of Utah
M. L. G. Oldfield
M. L. G. Oldfield University of Oxford

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