Modeling Internal Erosion Processes in Soil Pipes: Capturing Geometry Dynamics

The flow of water in a soil pipe and the resulting erosion of the soil pipe wall is simulated using a numerical solution of the Reynolds‐averaged Navier–Stokes equations coupled with the well‐known linear excess shear stress equation and the governing equation for transport of suspended sediment in...

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Tác giả chính:	Nieber, J.L.
Đồng tác giả:	Wilson, G.V.
Định dạng:	BB
Ngôn ngữ:	English
Thông tin xuất bản:	2020
Chủ đề:	Computational fluid dynamics Soil pipes Modeling Internal Erosion
Truy cập trực tuyến:	http://tailieuso.tlu.edu.vn/handle/DHTL/9786
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spelling	oai:localhost:DHTL-97862020-11-26T07:50:53Z Modeling Internal Erosion Processes in Soil Pipes: Capturing Geometry Dynamics Nieber, J.L. Wilson, G.V. Fox, G.A. Computational fluid dynamics Soil pipes Modeling Internal Erosion The flow of water in a soil pipe and the resulting erosion of the soil pipe wall is simulated using a numerical solution of the Reynolds‐averaged Navier–Stokes equations coupled with the well‐known linear excess shear stress equation and the governing equation for transport of suspended sediment in turbulent flow. The modeling results are compared with an experiment in which the entrance to the soil pipe constructed in a laboratory flume was subjected to a constant head of water in a reservoir. The modeled pipe discharge was in good agreement with the measured results when roughness was imposed on the pipe wall. The temporal growth of the soil pipe was in good agreement with the experimental results when using a soil erodibility coefficient of 0.0025 s/m. Several assumptions were made in model formulation, the most significant being that the soil pipe grows uniformly along its length and that no sediment deposition occurs. Recommendations for future work regarding these assumptions as well as others are discussed. https://acsess.onlinelibrary.wiley.com/doi/10.2136/vzj2018.09.0175 2020-11-26T07:50:53Z 2020-11-26T07:50:53Z 2019 BB 1539-1663 http://tailieuso.tlu.edu.vn/handle/DHTL/9786 en Vadose Zone Journal, Volume 18, Issue 1 (2019), pp.1-13
institution	Trường Đại học Thủy Lợi
collection	DSpace
language	English
topic	Computational fluid dynamics Soil pipes Modeling Internal Erosion
spellingShingle	Computational fluid dynamics Soil pipes Modeling Internal Erosion Nieber, J.L. Modeling Internal Erosion Processes in Soil Pipes: Capturing Geometry Dynamics
description	The flow of water in a soil pipe and the resulting erosion of the soil pipe wall is simulated using a numerical solution of the Reynolds‐averaged Navier–Stokes equations coupled with the well‐known linear excess shear stress equation and the governing equation for transport of suspended sediment in turbulent flow. The modeling results are compared with an experiment in which the entrance to the soil pipe constructed in a laboratory flume was subjected to a constant head of water in a reservoir. The modeled pipe discharge was in good agreement with the measured results when roughness was imposed on the pipe wall. The temporal growth of the soil pipe was in good agreement with the experimental results when using a soil erodibility coefficient of 0.0025 s/m. Several assumptions were made in model formulation, the most significant being that the soil pipe grows uniformly along its length and that no sediment deposition occurs. Recommendations for future work regarding these assumptions as well as others are discussed.
author2	Wilson, G.V.
author_facet	Wilson, G.V. Nieber, J.L.
format	BB
author	Nieber, J.L.
author_sort	Nieber, J.L.
title	Modeling Internal Erosion Processes in Soil Pipes: Capturing Geometry Dynamics
title_short	Modeling Internal Erosion Processes in Soil Pipes: Capturing Geometry Dynamics
title_full	Modeling Internal Erosion Processes in Soil Pipes: Capturing Geometry Dynamics
title_fullStr	Modeling Internal Erosion Processes in Soil Pipes: Capturing Geometry Dynamics
title_full_unstemmed	Modeling Internal Erosion Processes in Soil Pipes: Capturing Geometry Dynamics
title_sort	modeling internal erosion processes in soil pipes: capturing geometry dynamics
publishDate	2020
url	http://tailieuso.tlu.edu.vn/handle/DHTL/9786
work_keys_str_mv	AT nieberjl modelinginternalerosionprocessesinsoilpipescapturinggeometrydynamics
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Modeling Internal Erosion Processes in Soil Pipes: Capturing Geometry Dynamics

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