Zobrazeno 1 - 10 of 84 pro vyhledávání: '"Roger A. Kuhnle"'
1
Detailed bed topography and sediment load measurements for two stepdown flows in a laboratory flume
Autor: David D. Abraham, Keaton E. Jones, Daniel G. Wren, Tate O. McAlpin, Roger A. Kuhnle
Publikováno v: International Journal of Sediment Research. 37:287-298
Streams and rivers, particularly smaller ones, often do not maintain steady flow rates for long enough to reach equilibrium conditions for sediment transport and bed topography. In particular, streams in small watersheds may be subject to rapidly cha
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::58abadbe0cf0b444fc7c1aa6691a4e23
https://doi.org/10.1016/j.ijsrc.2021.11.002
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6
Effect of Increasing Antecedent Flows on Equilibrium Bed-Load Transport Rates in a Laboratory Channel with a Sand and Gravel Bed Channel
Autor: Daniel G. Wren, Eddy J. Langendoen, Roger A. Kuhnle
Publikováno v: Journal of Hydraulic Engineering. 147
Experiments were conducted in a laboratory flume in which gravel and total bed-load rates were measured continuously using independent methods that allowed evaluation of the effect of four ...
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::30d286e710f2129acd7d0d787a44b431
https://doi.org/10.1061/(asce)hy.1943-7900.0001930
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7
Changes in Sediment Transport and Bed Topography in Response to Step-Up Flows in Laboratory Flume
Autor: Eddy J. Langendoen, Roger A. Kuhnle, Daniel G. Wren
Publikováno v: Journal of Hydraulic Engineering. 147
It can be difficult to predict sediment transport in sand-bedded ephemeral streams because of rapidly changing conditions that may not be sustained long enough to reach equilibrium. This si...
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9a955aa1cfdea28434a496f7bfdfa1bd
https://doi.org/10.1061/(asce)hy.1943-7900.0001874
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8
Structural Changes of Mobile Gravel Bed Surface for Increasing Flow Intensity
Autor: Eddy J. Langendoen, Daniel G. Wren, Roger A. Kuhnle
Publikováno v: Journal of Hydraulic Engineering. 146
The structure of a mobile bed in a laboratory channel composed of sand and gravel (D50=8 mm) was characterized over a series of experiments with steady flows from a low flow, where only th...
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a32ccd615131d916328ab77d7b41041c
https://doi.org/10.1061/(asce)hy.1943-7900.0001699
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9
Sediment Transport and Bed-Form Characteristics for a Range of Step-Down Flows
Autor: Daniel G. Wren, Roger A. Kuhnle, Eddy J. Langendoen
Publikováno v: Journal of Hydraulic Engineering. 146
Ephemeral streams with mobile beds represent a challenging environment for sediment transport prediction. Bed topography from relatively infrequent high flow events may persist after hydrog...
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ae039434bccc62ff0434e32bfca1ffa7
https://doi.org/10.1061/(asce)hy.1943-7900.0001695
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10
Automated watershed subdivision for simulations using multi-objective optimization
Autor: Roger A. Kuhnle, Randall Emilaire, Henrique G. Momm, Robert R. Wells, Jurgen Garbrecht, Ronald L. Bingner
Publikováno v: Hydrological Sciences Journal. 62:1564-1582
A qualitative trial-and-error approach is commonly used to define watershed subdivisions through varying a single topographic threshold value. A methodology has been developed to quantitatively det...
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a72e96ad08d5b8201d6344ce585213b2
https://doi.org/10.1080/02626667.2017.1346794
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