Asanthi Jinasena
Faculty of Technology, Natural Sciences and Maritime Sciences, University College of Southeast Norway, Norway
Glenn-Ole Kaasa
Kelda Drilling Controls A/S, Porsgrunn, Norway
Roshan Sharma
Faculty of Technology, Natural Sciences and Maritime Sciences, University College of Southeast Norway, Norway
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http://dx.doi.org/10.3384/ecp1713890Published in: Proceedings of the 58th Conference on Simulation and Modelling (SIMS 58) Reykjavik, Iceland, September 25th – 27th, 2017
Linköping Electronic Conference Proceedings 138:12, p. 90-96
Published: 2017-09-27
ISBN: 978-91-7685-417-4
ISSN: 1650-3686 (print), 1650-3740 (online)
The modeling and simulation of free surface flows are
complex and challenging. Especially, the open channel
hydraulics are often modeled by the well–known and efficient
Saint–Venant equations. The possibility of efficiently
reducing these partial differential equations into
ordinary differential equations with the use of orthogonal
collocation method is studied with the goal of application
in estimations. The collocation method showed the flexibility
of choosing the boundary conditions with respect to
the flow behavior. The results were comparable enough to
the selected finite volume method. Further, a significant
reduction in computational time in the collocation method
is observed. Therefore, the collocation method shows a
good possibility of using it for the real–time estimation of
flow rate in an open channel.
orthogonal collocation, open channel, prismatic,
flow estimation, dynamic modeling
