TY - JOUR
T1 - Pipe roughness identification of water distribution networks: The full turbulent case
AU - Kaltenbacher, Stefan
AU - Steinberger, Martin
AU - Horn, Martin
PY - 2020/4
Y1 - 2020/4
N2 - This paper proposes a technique to identify individual pipe roughness parameters in a water distribution network by means of the inversion of the steady-state hydraulic network equations. By enabling the reconstruction of these hydraulic friction parameters to be reliable, this technique improves the conventional model’s accuracy and thereby promises to enhance model-based leakage detection and localization. As it is the case in so-called fireflow tests, this methodology is founded on the premise to measure the pressure distributed at a subset of nodes in the network’s graph while assuming the nodal consumption to be known. Beside of the proposed problem formulation, which is restricted to only allow turbulent flow in each of the network’s pipes initially, developed algorithms are presented and evaluated using simulation examples.
AB - This paper proposes a technique to identify individual pipe roughness parameters in a water distribution network by means of the inversion of the steady-state hydraulic network equations. By enabling the reconstruction of these hydraulic friction parameters to be reliable, this technique improves the conventional model’s accuracy and thereby promises to enhance model-based leakage detection and localization. As it is the case in so-called fireflow tests, this methodology is founded on the premise to measure the pressure distributed at a subset of nodes in the network’s graph while assuming the nodal consumption to be known. Beside of the proposed problem formulation, which is restricted to only allow turbulent flow in each of the network’s pipes initially, developed algorithms are presented and evaluated using simulation examples.
KW - Roughness calibration
KW - Water distribution networks
KW - Parameter identification
KW - Colebrook–White
KW - Darcy–Weisbach
KW - Hydraulic friction parameters
UR - http://www.scopus.com/inward/record.url?scp=85075875957&partnerID=8YFLogxK
U2 - 10.1016/j.apm.2019.11.011
DO - 10.1016/j.apm.2019.11.011
M3 - Article
SN - 0307-904X
SP - 879
EP - 894
JO - Applied Mathematical Modelling
JF - Applied Mathematical Modelling
IS - 80
ER -