R. J. Lenhard

4.3k total citations · 1 hit paper
62 papers, 3.2k citations indexed

About

R. J. Lenhard is a scholar working on Environmental Engineering, Civil and Structural Engineering and Mechanical Engineering. According to data from OpenAlex, R. J. Lenhard has authored 62 papers receiving a total of 3.2k indexed citations (citations by other indexed papers that have themselves been cited), including 48 papers in Environmental Engineering, 34 papers in Civil and Structural Engineering and 23 papers in Mechanical Engineering. Recurrent topics in R. J. Lenhard's work include Groundwater flow and contamination studies (48 papers), Soil and Unsaturated Flow (34 papers) and Hydraulic Fracturing and Reservoir Analysis (23 papers). R. J. Lenhard is often cited by papers focused on Groundwater flow and contamination studies (48 papers), Soil and Unsaturated Flow (34 papers) and Hydraulic Fracturing and Reservoir Analysis (23 papers). R. J. Lenhard collaborates with scholars based in United States, Oman and Netherlands. R. J. Lenhard's co-authors include Jack Parker, John C. Parker, T. Kuppusamy, M. Oostrom, Jagath J. Kaluarachchi, M. Oostrom, Mark D. White, Srikanta Mishra, Martinus Th. van Genuchten and H. J. Morel‐Seytoux and has published in prestigious journals such as SHILAP Revista de lepidopterología, Environmental Science & Technology and Water Resources Research.

In The Last Decade

R. J. Lenhard

60 papers receiving 2.8k citations

Hit Papers

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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.

A parametric model for constitutive properties governing multiphase flow in porous media

1987 587 citations Jack Parker, R. J. Lenhard et al. Water Resources Research profile →

Peers

Countries citing papers authored by R. J. Lenhard

Since Specialization

Citations

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

Fields of papers citing papers by R. J. Lenhard

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by R. J. Lenhard. 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 R. J. Lenhard. The network helps show where R. J. Lenhard may publish in the future.

Co-authorship network of co-authors of R. J. Lenhard

This figure shows the co-authorship network connecting the top 25 collaborators of R. J. Lenhard. A scholar is included among the top collaborators of R. J. Lenhard 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 R. J. Lenhard. R. J. Lenhard 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	Predicting Vertical LNAPL Distribution in the Subsurface under the Fluctuating Water Table Effect 2022 ·Groundwater Monitoring & Remediation ·Lamine Boumaiza, Romain Chesnaux, Julien Walter, R. J. Lenhard, (unknown), Zoi Dokou, Motasem Y.D. Alazaiza	7
2	Testing an Analytical Model for Predicting Subsurface LNAPL Distributions from Current and Historic Fluid Levels in Monitoring Wells: A Preliminary Test Considering Hysteresis 2019 ·Water ·R. J. Lenhard, John L. Rayner, (unknown)	5
3	Determination of specific LNAPL volumes in soils having a multimodal pore-size distribution 2019 ·Journal of Environmental Management ·(unknown), R. J. Lenhard, Chang Hung Kiang, Martinus Th. van Genuchten	5
4	A practical tool for estimating subsurface LNAPL distributions and transmissivity using current and historical fluid levels in groundwater wells: Effects of entrapped and residual LNAPL 2017 ·Journal of Contaminant Hydrology ·R. J. Lenhard, John L. Rayner, Greg B. Davis	42
5	Investigating Water Movement through Fractured Subsurface Systems: A Mesoscale Approach 2005 ·AGUFM ·R. J. Lenhard, Paul Meakin, Hakan Başağaoğlu, Alexandre M. Tartakovsky	1
6	A Practical Model for Mobile, Residual, and Entrapped NAPL in Water‐Wet Porous Media 2004 ·Ground Water ·Mark White, M. Oostrom, R. J. Lenhard	33
7	A constitutive model for air–NAPL–water flow in the vadose zone accounting for immobile, non-occluded (residual) NAPL in strongly water-wet porous media 2004 ·Journal of Contaminant Hydrology ·R. J. Lenhard, M. Oostrom, (unknown)	22
8	A constitutive model for air–NAPL–water flow in the vadose zone accounting for immobile, non-occluded (residual) NAPL in strongly water-wet porous media 2004 ·Journal of Contaminant Hydrology ·R. J. Lenhard, M. Oostrom, (unknown)	50
9	Flow behavior and residual saturation formation of liquid carbon tetrachloride in unsaturated heterogeneous porous media 2003 ·Journal of Contaminant Hydrology ·M. Oostrom, C. Hofstee, R. J. Lenhard, T. W. Wietsma	49
10	Carbon Tetrachloride Flow Behavior in Unsaturated Hanford Caliche Material: An Investigation of Residual Nonaqueous Phase Liquids 2003 ·Vadose Zone Journal ·M. Oostrom, R. J. Lenhard	12
11	Saturation-Pressure Relationships 2002 ·OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) ·R. J. Lenhard, J. H. Dane, Mart Oostrom	1
12	Comparison of relative permeability-saturation-pressure parametric models for infiltration and redistribution of a light nonaqueous-phase liquid in sandy porous media 1998 ·Advances in Water Resources ·M. Oostrom, R. J. Lenhard	74
13	SINGLE-SOURCE GAMMA RADIATION PROCEDURES FOR IMPROVED CALIBRATION AND MEASUREMENTS IN POROUS MEDIA 1998 ·Soil Science ·M. Oostrom, C. Hofstee, (unknown), R. J. Lenhard	42
14	Investigation of density-dependent gas advection of trichloroethylene: Experiment and a model validation exercise 1995 ·Journal of Contaminant Hydrology ·R. J. Lenhard, M. Oostrom, Cameron P. Simmons, Mark D. White	54
15	Estimation of Free Hydrocarbon Volume from Fluid Levels in Monitoring Wells 1990 ·Ground Water ·R. J. Lenhard, Jack Parker	132
16	A numerical model for areal migration of water and light hydrocarbon in unconfined aquifers 1990 ·Advances in Water Resources ·Jagath J. Kaluarachchi, Jack Parker, R. J. Lenhard	41
17	Physics of immiscible flow in porous media 1987 ·Final Report ·John C. Parker, R. J. Lenhard, T. Kuppusamy	3
18	A model for hysteretic constitutive relations governing multiphase flow: 1. Saturation‐pressure relations 1987 ·Water Resources Research ·Jack Parker, R. J. Lenhard	369
19	Effects of Clay‐Solution Interactions on Water Retention 1986 ·Journal of Irrigation and Drainage Engineering ·R. J. Lenhard, R. H. Brooks	2
20	Comparison of Liquid Retention Curves with Polar and Nonpolar Liquids 1985 ·Soil Science Society of America Journal ·R. J. Lenhard, R. H. Brooks	7

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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