Karen A. Flack

4.9k total citations · 2 hit papers
73 papers, 3.7k citations indexed

About

Karen A. Flack is a scholar working on Computational Mechanics, Aerospace Engineering and Mechanical Engineering. According to data from OpenAlex, Karen A. Flack has authored 73 papers receiving a total of 3.7k indexed citations (citations by other indexed papers that have themselves been cited), including 47 papers in Computational Mechanics, 31 papers in Aerospace Engineering and 26 papers in Mechanical Engineering. Recurrent topics in Karen A. Flack's work include Fluid Dynamics and Turbulent Flows (36 papers), Heat Transfer Mechanisms (20 papers) and Wind and Air Flow Studies (19 papers). Karen A. Flack is often cited by papers focused on Fluid Dynamics and Turbulent Flows (36 papers), Heat Transfer Mechanisms (20 papers) and Wind and Air Flow Studies (19 papers). Karen A. Flack collaborates with scholars based in United States, Australia and Japan. Karen A. Flack's co-authors include Michael P. Schultz, Ralph J. Volino, Ethan Lust, Daniel Chung, Julio M. Barros, GJ Walker, Nicholas Hutchins, Sarah M. Coulthard, Geoffrey B. Smith and J. R. Saylor and has published in prestigious journals such as Journal of Fluid Mechanics, Annual Review of Fluid Mechanics and International Journal of Heat and Mass Transfer.

In The Last Decade

Karen A. Flack

69 papers receiving 3.6k citations

Hit Papers

Review of Hydraulic Roughness Scales in the Fully Rough R... 2010 2026 2015 2020 2010 2021 100 200 300
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Review of Hydraulic Roughness Scales in the Fully Rough Regime
    2010 322 citations Karen A. Flack, Michael P. Schultz profile →
  2. Predicting the Drag of Rough Surfaces
    2021 216 citations Daniel Chung, Nicholas Hutchins et al. Annual Review of Fluid Mechanics profile →

Peers

Karen A. Flack
V. C. Patel United States
Helge I. Andersson Norway
Ram Balachandar Canada
Marcus Hultmark United States
Robert S. Brodkey United States
T. B. Gatski United States
Michele Guala United States
Daniel Chung Australia
Muk Chen Ong Norway
Vincenzo Armenio Italy
V. C. Patel United States
Karen A. Flack
Citations per year, relative to Karen A. Flack Karen A. Flack (= 1×) peers V. C. Patel

Countries citing papers authored by Karen A. Flack

Since Specialization
Citations

This map shows the geographic impact of Karen A. Flack'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 Karen A. Flack with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Karen A. Flack more than expected).

Fields of papers citing papers by Karen A. Flack

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Karen A. Flack. 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 Karen A. Flack. The network helps show where Karen A. Flack may publish in the future.

Co-authorship network of co-authors of Karen A. Flack

This figure shows the co-authorship network connecting the top 25 collaborators of Karen A. Flack. A scholar is included among the top collaborators of Karen A. Flack 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 Karen A. Flack. Karen A. Flack is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Barros, Julio M., et al.. (2022). Boundary layer hydrodynamics of patchy biofilms. Biofouling. 38(7). 696–714. 5 indexed citations
2.
Flack, Karen A. & Daniel Chung. (2022). Important Parameters for a Predictive Model of ks for Zero-Pressure-Gradient Flows. AIAA Journal. 60(10). 5923–5931. 15 indexed citations
3.
Chung, Daniel, Nicholas Hutchins, Michael P. Schultz, & Karen A. Flack. (2021). Predicting the Drag of Rough Surfaces. Annual Review of Fluid Mechanics. 53(1). 439–471. 216 indexed citations breakdown →
4.
Lust, Ethan, et al.. (2020). Performance characteristics of a cross-flow hydrokinetic turbine in current only and current and wave conditions. Ocean Engineering. 219. 108362–108362. 10 indexed citations
5.
Flack, Karen A., Michael P. Schultz, & Julio M. Barros. (2019). Skin Friction Measurements of Systematically-Varied Roughness: Probing the Role of Roughness Amplitude and Skewness. Flow Turbulence and Combustion. 104(2-3). 317–329. 69 indexed citations
6.
Barros, Julio M., et al.. (2018). Roughness effects of diatomaceous slime fouling on turbulent boundary layer hydrodynamics. Biofouling. 34(9). 976–988. 12 indexed citations
7.
Barros, Julio M., Michael P. Schultz, & Karen A. Flack. (2018). Measurements of skin-friction of systematically generated surface roughness. International Journal of Heat and Fluid Flow. 72. 1–7. 50 indexed citations
8.
Lust, Ethan, et al.. (2017). The Influence of Waves on the Near-Wake of an Axial-Flow Marine Hydrokinetic Turbine. Bulletin of the American Physical Society. 1 indexed citations
9.
Barros, Julio M., Michael P. Schultz, & Karen A. Flack. (2015). Skin-Friction Measurements on Mathematically Generated Roughness in a Turbulent Channel Flow. Bulletin of the American Physical Society. 2 indexed citations
10.
Schultz, Michael P., GJ Walker, Cecily N. Steppe, & Karen A. Flack. (2015). Impact of diatomaceous biofilms on the frictional drag of fouling-release coatings. Biofouling. 31(9-10). 759–773. 106 indexed citations
11.
Flack, Karen A., et al.. (2013). Near wake characteristics of a model horizontal axis marine current turbine under steady and unsteady inflow conditions. 2013 OCEANS - San Diego. 1–7. 3 indexed citations
12.
Schultz, Michael P. & Karen A. Flack. (2013). Reynolds-number scaling of turbulent channel flow. Physics of Fluids. 25(2). 138 indexed citations
13.
Flack, Karen A. & Michael P. Schultz. (2011). Important scales for predicting the onset of roughness effects in the transitionally rough regime. Bulletin of the American Physical Society. 64. 1 indexed citations
14.
Flack, Karen A., et al.. (2011). The Effect of Surface Waves on the Performance Characteristics of a Model Tidal Turbine. AGU Fall Meeting Abstracts. 2011. 63 indexed citations
15.
Volino, Ralph J., Michael P. Schultz, & Karen A. Flack. (2011). Turbulence structure in boundary layers over periodic two- and three-dimensional roughness. Journal of Fluid Mechanics. 676. 172–190. 97 indexed citations
16.
Schultz, Michael P., et al.. (2009). Turbulent boundary layer over a small, 2-D, $k$-type roughness. Bulletin of the American Physical Society. 62. 1 indexed citations
17.
Flack, Karen A. & Michael P. Schultz. (2007). Development of roughness scaling parameters in the fully rough regime.. Bulletin of the American Physical Society. 60. 1 indexed citations
18.
Flack, Karen A., J. R. Saylor, & Geoffrey B. Smith. (2001). Near-surface turbulence for evaporative convection at an air/water interface. Physics of Fluids. 13(11). 3338–3345. 34 indexed citations
19.
Volino, Ralph J., et al.. (2000). Secondary Flow Measurements in a Turbine Passage With Endwall Flow Modification. Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration. 3 indexed citations
20.
Flack, Karen A., et al.. (1996). A combined experimental and computational study of pressure-driven three-dimensional separation in a turbulent boundary layer. Experimental Thermal and Fluid Science. 13(3). 252–265. 1 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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