Ümit Ö. Köylü

3.7k total citations · 1 hit paper
62 papers, 3.1k citations indexed

About

Ümit Ö. Köylü is a scholar working on Computational Mechanics, Fluid Flow and Transfer Processes and Automotive Engineering. According to data from OpenAlex, Ümit Ö. Köylü has authored 62 papers receiving a total of 3.1k indexed citations (citations by other indexed papers that have themselves been cited), including 24 papers in Computational Mechanics, 19 papers in Fluid Flow and Transfer Processes and 17 papers in Automotive Engineering. Recurrent topics in Ümit Ö. Köylü's work include Advanced Combustion Engine Technologies (19 papers), Combustion and flame dynamics (18 papers) and Vehicle emissions and performance (15 papers). Ümit Ö. Köylü is often cited by papers focused on Advanced Combustion Engine Technologies (19 papers), Combustion and flame dynamics (18 papers) and Vehicle emissions and performance (15 papers). Ümit Ö. Köylü collaborates with scholars based in United States, Portugal and Türkiye. Ümit Ö. Köylü's co-authors include G. M. Faeth, Maria da Graça Carvalho, Tiago Farias, Daniel E. Rosner, Lisa D. Pfefferle, Charles S. McEnally, Ming C. Leu, Nannan Guo, Bo Yang and Bing Hu and has published in prestigious journals such as Journal of Power Sources, Journal of Colloid and Interface Science and International Journal of Hydrogen Energy.

In The Last Decade

Ümit Ö. Köylü

60 papers receiving 3.0k citations

Hit Papers

align trajectories sort by overperformance

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.

Fractal and projected structure properties of soot aggregates

1995 393 citations Ümit Ö. Köylü, G. M. Faeth et al. Combustion and Flame profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Ümit Ö. Köylü United States	27	1.2k	1.2k	1.1k	645	600	62	3.1k
Tat Leung Chan Hong Kong	34	1.2k 1.0×	1.0k 0.9×	555 0.5×	1.2k 1.8×	379 0.6×	121	3.8k
Kevin A. Thomson Canada	38	1.8k 1.5×	1.7k 1.5×	1.5k 1.3×	1.0k 1.6×	520 0.9×	85	3.7k
Richard L. Axelbaum United States	30	1.0k 0.9×	1.4k 1.2×	359 0.3×	520 0.8×	593 1.0×	140	3.4k
Yong He China	37	2.2k 1.9×	2.1k 1.8×	555 0.5×	232 0.4×	2.0k 3.4×	179	5.4k
Jérôme Yon France	25	530 0.4×	605 0.5×	1.1k 1.0×	335 0.5×	252 0.4×	83	2.0k
A.N. Hayhurst United Kingdom	48	993 0.8×	2.2k 1.9×	740 0.7×	183 0.3×	1.7k 2.9×	212	6.8k
Zeyad T. Alwahabi Australia	31	960 0.8×	1.5k 1.3×	535 0.5×	148 0.2×	193 0.3×	139	2.7k
María U. Alzueta Spain	44	3.6k 3.1×	2.0k 1.7×	1.1k 1.0×	440 0.7×	3.1k 5.2×	170	6.1k
Hervé Jeanmart Belgium	29	1.3k 1.1×	1.4k 1.2×	357 0.3×	263 0.4×	747 1.2×	112	3.1k
Murray J. Thomson Canada	47	5.0k 4.2×	3.5k 3.1×	1.3k 1.1×	1.6k 2.4×	1.8k 3.0×	153	6.8k

Countries citing papers authored by Ümit Ö. Köylü

Since Specialization

Citations

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

Fields of papers citing papers by Ümit Ö. Köylü

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ümit Ö. Köylü. 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 Ümit Ö. Köylü. The network helps show where Ümit Ö. Köylü may publish in the future.

Co-authorship network of co-authors of Ümit Ö. Köylü

This figure shows the co-authorship network connecting the top 25 collaborators of Ümit Ö. Köylü. A scholar is included among the top collaborators of Ümit Ö. Köylü 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 Ümit Ö. Köylü. Ümit Ö. Köylü 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

Konur, Dinçer, et al.. (2016). A Realistic Driving Profile Optimization for Electric Vehicles. 697. 1 indexed citations

Köylü, Ümit Ö., et al.. (2016). Multi-objective optimization of operating parameters for hydrogen-fueled spark-ignition engines. International Journal of Hydrogen Energy. 41(40). 18291–18299. 45 indexed citations

Köylü, Ümit Ö., et al.. (2015). Experimental and Computational Evaluation of Performance and Water Management Characteristics of a Bio-Inspired Proton Exchange Membrane Fuel Cell. Journal of Fuel Cell Science and Technology. 12(6). 22 indexed citations

Köylü, Ümit Ö., et al.. (2015). A Computational Study of In-Cylinder NOx Reduction Strategies for a Compression-Ignition Engine Fueled With Diesel/Hydrogen Mixtures. 3 indexed citations

Köylü, Ümit Ö., et al.. (2014). Combustion Simulation of a Direct Injection Diesel Engine with Hydrogen Fuel Using a 3D Model with Multi-Fuel Chemical Kinetics. SAE technical papers on CD-ROM/SAE technical paper series. 1. 7 indexed citations

Grasman, Scott E., et al.. (2010). Hydrogen Safety: A Focus on Power Generation Applications. Professional safety. 55(9). 39–44. 2 indexed citations

Köylü, Ümit Ö., et al.. (2009). Development and Integration of Engine Simulation Projects Into the Mechanical Engineering Curriculum at Missouri S&T. 341–347. 1 indexed citations

Köylü, Ümit Ö., et al.. (2009). Effectiveness of anode in a solid oxide fuel cell with hydrogen/oxygen mixed gases. International Journal of Hydrogen Energy. 34(12). 5138–5143. 25 indexed citations

Köylü, Ümit Ö., et al.. (2009). A Computational Study on Performance, Combustion and Emissions Characteristics of a Hydrogen-Fueled Internal Combustion Engine. 9–15. 2 indexed citations

10.

Doğan, Fatih, et al.. (2007). Single-Chamber SOFC Operating with Hydrocarbon-Air and Hydrogen-Oxygen Gas Mixtures. ECS Transactions. 7(1). 971–980. 1 indexed citations

11.

Köylü, Ümit Ö., et al.. (2006). Optical sizing of aggregated combustion particles: computational development of a two-angle laser scattering technique. Applied Optics. 45(18). 4396–4396. 8 indexed citations

12.

Hu, Bing, Bo Yang, & Ümit Ö. Köylü. (2003). Soot measurements at the axis of an ethylene/air non-premixed turbulent jet flame. Combustion and Flame. 134(1-2). 93–106. 75 indexed citations

13.

Xing, Yangchuan, Ümit Ö. Köylü, & Daniel E. Rosner. (1999). In situ light-scattering measurements of morphologically evolving flame-synthesized oxide nanoaggregates. Applied Optics. 38(12). 2686–2686. 47 indexed citations

14.

Brasil, Augusto César de Mendonça, Tiago Farias, Ümit Ö. Köylü, & Maria da Graça Carvalho. (1998). A recipe for image characterization of fractal-like aggregates. Journal of Aerosol Science. 29. S1275–S1276. 11 indexed citations

15.

McEnally, Charles S., Ümit Ö. Köylü, Lisa D. Pfefferle, & Daniel E. Rosner. (1997). Soot volume fraction and temperature measurements in laminar nonpremixed flames using thermocouples. Combustion and Flame. 109(4). 701–720. 265 indexed citations

16.

Neimark, Alexander V., Ümit Ö. Köylü, & Daniel E. Rosner. (1996). Extended Characterization of Combustion-Generated Aggregates: Self-Affinity and Lacunarities. Journal of Colloid and Interface Science. 180(2). 590–597. 25 indexed citations

17.

Xing, Yangchuan, Ümit Ö. Köylü, & Daniel E. Rosner. (1996). Synthesis and restructuring of inorganic nano-particles in counterflow diffusion flames. Combustion and Flame. 107(1-2). 85–102. 64 indexed citations

18.

Sunderland, Peter B., Ümit Ö. Köylü, & G. M. Faeth. (1995). Soot formation in weakly buoyant acetylene-fueled laminar jet diffusion flames burning in air. Combustion and Flame. 100(1-2). 310–322. 60 indexed citations

19.

Köylü, Ümit Ö.. (1992). Emission, structure and optical properties of overfire soot from buoyant turbulent diffusion flames.. Deep Blue (University of Michigan). 4 indexed citations

20.

Köylü, Ümit Ö. & G. M. Faeth. (1991). Carbon monoxide and soot emissions from liquid-fueled buoyant turbulent diffusion flames. Combustion and Flame. 87(1). 61–76. 81 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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