Holger Class

4.3k total citations · 1 hit paper
103 papers, 2.7k citations indexed

About

Holger Class is a scholar working on Environmental Engineering, Ocean Engineering and Mechanical Engineering. According to data from OpenAlex, Holger Class has authored 103 papers receiving a total of 2.7k indexed citations (citations by other indexed papers that have themselves been cited), including 80 papers in Environmental Engineering, 32 papers in Ocean Engineering and 30 papers in Mechanical Engineering. Recurrent topics in Holger Class's work include CO2 Sequestration and Geologic Interactions (49 papers), Groundwater flow and contamination studies (44 papers) and Hydraulic Fracturing and Reservoir Analysis (25 papers). Holger Class is often cited by papers focused on CO2 Sequestration and Geologic Interactions (49 papers), Groundwater flow and contamination studies (44 papers) and Hydraulic Fracturing and Reservoir Analysis (25 papers). Holger Class collaborates with scholars based in Germany, United States and United Kingdom. Holger Class's co-authors include Rainer Helmig, Anozie Ebigbo, Johannes Hommel, A. Kopp, Edward Coltman, Robin Gerlach, Wolfgang Nowak, Sergey Oladyshkin, Bernd Flemisch and Peter Bastian and has published in prestigious journals such as SHILAP Revista de lepidopterología, Journal of Power Sources and Scientific Reports.

In The Last Decade

Holger Class

100 papers receiving 2.6k citations

Hit Papers

align trajectories

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.

Porosity–Permeability Relations for Evolving Pore Space: A Review with a Focus on (Bio-)geochemically Altered Porous Media

2018 239 citations Johannes Hommel, Holger Class et al. profile →

Peers

Countries citing papers authored by Holger Class

Since Specialization

Citations

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

Fields of papers citing papers by Holger Class

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Holger Class. 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 Holger Class. The network helps show where Holger Class may publish in the future.

Co-authorship network of co-authors of Holger Class

This figure shows the co-authorship network connecting the top 25 collaborators of Holger Class. A scholar is included among the top collaborators of Holger Class 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 Holger Class. Holger Class 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

#	Work	Indexed citations
1	Rayleigh Invariance Allows the Estimation of Effective CO₂ Fluxes Due To Convective Dissolution Into Water‐Filled Fractures 2025 ·Water Resources Research ·(unknown), Holger Class	1
2	A novel geometry-informed drag term formulation for pseudo-3D Stokes simulations with varying apertures 2024 ·Advances in Water Resources ·(unknown), (unknown), (unknown), Martin Schneider, Holger Class, Holger Steeb	0
3	Comparing Different Coupling and Modeling Strategies in Hydromechanical Models for Slope Stability Assessment 2024 ·Water ·(unknown), Johan Alexander Huisman, Harry Vereecken, Holger Class	2
4	Seasonal Dynamics of Gaseous CO2 Concentrations in a Karst Cave Correspond with Aqueous Concentrations in a Stagnant Water Column 2023 ·Geosciences ·Holger Class, (unknown), (unknown), (unknown), (unknown), Martin Zimmer	4
5	Heat transport from atmosphere through the subsurface to drinking‐water supply pipes 2023 ·Vadose Zone Journal ·(unknown), (unknown), Holger Class, (unknown), (unknown), (unknown), (unknown)	1
6	Machine learning assists in increasing the time resolution of X-ray computed tomography applied to mineral precipitation in porous media 2023 ·Scientific Reports ·Dongwon Lee, (unknown), Johannes Hommel, (unknown), Holger Class, Holger Steeb	5
7	Berechnung von Temperaturfahnen im Grundwasser mit analytischen und numerischen Modellen 2022 ·Grundwasser ·(unknown), (unknown), (unknown), (unknown), Holger Class, Martin Schneider, (unknown), (unknown), Tanja Liesch, Kathrin Menberg, Philipp Blum	5
8	A Numerical Model for Enzymatically Induced Calcium Carbonate Precipitation 2020 ·Applied Sciences ·Johannes Hommel, (unknown), (unknown), A. J. Phillips, Robin Gerlach, Alfred B. Cunningham, Holger Class	31
9	Frackit: a framework for stochastic fracture network generation and analysis 2020 ·The Journal of Open Source Software ·Dennis Gläser, Bernd Flemisch, Holger Class, Rainer Helmig	4
10	Regional-scale brine migration along vertical pathways due to CO ₂ injection – Part 2: A simulated case study in the North German Basin 2017 ·Hydrology and earth system sciences ·(unknown), Vera Noack, (unknown), Wilfried Konrad, Dirk Scheer, Holger Class	11
11	Regional-scale brine migration along vertical pathways due to CO ₂ injection – Part 1: The participatory modeling approach 2017 ·Hydrology and earth system sciences ·Dirk Scheer, Wilfried Konrad, Holger Class, (unknown), (unknown), Vera Noack	4
12	A revised model for microbially induced calcite precipitation: Improvements and new insights based on recent experiments 2015 ·Water Resources Research ·Johannes Hommel, Ellen G. Lauchnor, A. J. Phillips, Robin Gerlach, Alfred B. Cunningham, Rainer Helmig, Anozie Ebigbo, Holger Class	84
13	Modeling Two Phase Flow in Large Scale Fractured Porous Media with an Extended Multiple Interacting Continua Method 2011 ·Computer Modeling in Engineering & Sciences ·(unknown), Adam Szymkiewicz, Holger Class, Rainer Helmig	27
14	Modelling biofilm growth in the presence of carbon dioxide and water flow in the subsurface 2010 ·Advances in Water Resources ·Anozie Ebigbo, Rainer Helmig, Alfred B. Cunningham, Holger Class, Robin Gerlach	64
15	Estimation of effective parameters for a two-phase flow problem in non-Gaussian heterogeneous porous media 2010 ·Journal of Contaminant Hydrology ·Insa Neuweiler, (unknown), Holger Class, Rainer Helmig	19
16	Different concepts for the coupling of porous-media flow with lower-dimensional pipe flow 2009 ·Computer Modeling in Engineering & Sciences ·Mehmet Doğan, Holger Class, Rainer Helmig	3
17	Predictive modelling of Ketzin - CO2 arrival in the observation well 2009 ·Publication Database GFZ (GFZ German Research Centre for Geosciences) ·Markus Kühn, Holger Class, Peter Frykman, A. Kopp, Carsten M. Nielsen, (unknown)	1
18	Numerische Simulation der Speicherung von CO₂ in geologischen Formationen 2006 ·Chemie Ingenieur Technik ·Holger Class, (unknown), Rainer Helmig, A. Kopp, Anozie Ebigbo	1
19	CO2Trap - Development and evaluation of innovative strategies for mineral and physical trapping of CO2 in geological formations and of long-term cap rock integrity 2005 ·RWTH Publications (RWTH Aachen) ·Michael Kühn, Stefan Peiffer, Holger Class, (unknown), Helge Stanjek, Ralf Littke, Christoph Clauser, Thomas Kempka, Rafig Azzam, Andreas Busch, (unknown), (unknown), Bernhard M. Krooß, Rainer Helmig, Tomás Manuel Fernández-Steeger, Ralf Schlüter, (unknown), (unknown), (unknown), (unknown)	5
20	A comparison of different model concepts for saltwater intrusion processes 2000 ·IAHS-AISH publication ·Reinhard Hinkelmann, (unknown), Holger Class, Rainer Helmig	1

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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