Karl H. Hellman

24 papers and 215 indexed citations i.

About

Karl H. Hellman is a scholar working on Automotive Engineering, Fluid Flow and Transfer Processes and Renewable Energy, Sustainability and the Environment. According to data from OpenAlex, Karl H. Hellman has authored 24 papers receiving a total of 215 indexed citations (citations by other indexed papers that have themselves been cited), including 12 papers in Automotive Engineering, 11 papers in Fluid Flow and Transfer Processes and 8 papers in Renewable Energy, Sustainability and the Environment. Recurrent topics in Karl H. Hellman’s work include Vehicle emissions and performance (12 papers), Advanced Combustion Engine Technologies (11 papers) and Energy, Environment, and Transportation Policies (6 papers). Karl H. Hellman is often cited by papers focused on Vehicle emissions and performance (12 papers), Advanced Combustion Engine Technologies (11 papers) and Energy, Environment, and Transportation Policies (6 papers). Karl H. Hellman collaborates with scholars based in United States. Karl H. Hellman's co-authors include Thomas Austin and Harold Schock and has published in prestigious journals such as SAE technical papers on CD-ROM/SAE technical paper series, The Physics of Fluids and Journal of the Air Pollution Control Association.

In The Last Decade

Co-authorship network of co-authors of Karl H. Hellman i

Fields of papers citing papers by Karl H. Hellman

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Karl H. Hellman. 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 Karl H. Hellman. The network helps show where Karl H. Hellman may publish in the future.

Countries citing papers authored by Karl H. Hellman

Since Specialization
Citations

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

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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2025