Details
| Original language | English |
|---|---|
| Pages (from-to) | 479-484 |
| Number of pages | 6 |
| Journal | Urban water journal |
| Volume | 18 |
| Issue number | 6 |
| Publication status | Published - 5 Mar 2021 |
Abstract
Pipe leakage from defect subsurface gravity sewer pipe networks potentially contaminates soil and groundwater. In recent times, an increasing number of numerical pipe leakage models incorporating pipe flow, saturated-unsaturated flow in the subsurface, and exchange fluxes from and to leaky pipes have been developed. Numerical benchmarks are required in order to demonstrate result accuracy of these models. The present technical note represents a novel numerical benchmark of the pipe leakage problem describing pipe water exfiltration into horizontal unsaturated-saturated soil. The present benchmark enables to test the accurate calculation of the spatial potential distribution in the soil, which is affected by the water level in the leaky pipe. The derivation of an analytical solution for stationary pipe water exfiltration into a horizontal aquifer and a conceptual model for the setup of a corresponding numerical model is shown. Results of the analytical model are reproduced using the numerical leakage model OGS-HE.
Keywords
- Numerical benchmark, numerical model, OpenGeoSys, pipe leakage
ASJC Scopus subject areas
- Social Sciences(all)
- Geography, Planning and Development
- Environmental Science(all)
- Water Science and Technology
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In: Urban water journal, Vol. 18, No. 6, 05.03.2021, p. 479-484.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Stationary leakage from a gravity sewer into horizontal unsaturated-saturated soil
T2 - a numerical benchmark for the verification of pipe leakage models
AU - Peche, Aaron
AU - Graf, Thomas
N1 - Funding Information: We want to thank the editor for handling the manuscript and the anonymous reviewers for the thorough feedback which improved the quality of the manuscript significantly. This research was being conducted within the BMBF funded research project EVUS [BMBF, 03G0846A].
PY - 2021/3/5
Y1 - 2021/3/5
N2 - Pipe leakage from defect subsurface gravity sewer pipe networks potentially contaminates soil and groundwater. In recent times, an increasing number of numerical pipe leakage models incorporating pipe flow, saturated-unsaturated flow in the subsurface, and exchange fluxes from and to leaky pipes have been developed. Numerical benchmarks are required in order to demonstrate result accuracy of these models. The present technical note represents a novel numerical benchmark of the pipe leakage problem describing pipe water exfiltration into horizontal unsaturated-saturated soil. The present benchmark enables to test the accurate calculation of the spatial potential distribution in the soil, which is affected by the water level in the leaky pipe. The derivation of an analytical solution for stationary pipe water exfiltration into a horizontal aquifer and a conceptual model for the setup of a corresponding numerical model is shown. Results of the analytical model are reproduced using the numerical leakage model OGS-HE.
AB - Pipe leakage from defect subsurface gravity sewer pipe networks potentially contaminates soil and groundwater. In recent times, an increasing number of numerical pipe leakage models incorporating pipe flow, saturated-unsaturated flow in the subsurface, and exchange fluxes from and to leaky pipes have been developed. Numerical benchmarks are required in order to demonstrate result accuracy of these models. The present technical note represents a novel numerical benchmark of the pipe leakage problem describing pipe water exfiltration into horizontal unsaturated-saturated soil. The present benchmark enables to test the accurate calculation of the spatial potential distribution in the soil, which is affected by the water level in the leaky pipe. The derivation of an analytical solution for stationary pipe water exfiltration into a horizontal aquifer and a conceptual model for the setup of a corresponding numerical model is shown. Results of the analytical model are reproduced using the numerical leakage model OGS-HE.
KW - Numerical benchmark
KW - numerical model
KW - OpenGeoSys
KW - pipe leakage
UR - http://www.scopus.com/inward/record.url?scp=85107538273&partnerID=8YFLogxK
U2 - 10.1080/1573062X.2021.1893360
DO - 10.1080/1573062X.2021.1893360
M3 - Article
AN - SCOPUS:85107538273
VL - 18
SP - 479
EP - 484
JO - Urban water journal
JF - Urban water journal
SN - 1573-062X
IS - 6
ER -