000 02310 a2200337 4500
001 1138027405
005 20250317100419.0
008 250312042015xx eng
020 _a9781138027404
037 _bTaylor & Francis
_cGBP 41.99
_fBB
040 _a01
041 _aeng
072 7 _aRBK
_2thema
072 7 _aPST
_2thema
072 7 _aRNCB
_2thema
072 7 _aTN
_2thema
072 7 _aRBK
_2bic
072 7 _aPST
_2bic
072 7 _aRNCB
_2bic
072 7 _aTN
_2bic
072 7 _aNAT010000
_2bisac
072 7 _aTEC009020
_2bisac
072 7 _aTEC009110
_2bisac
072 7 _aTEC010030
_2bisac
100 1 _aYuqing Lin
245 1 0 _aUnstructured Cellular Automata in Ecohydraulics Modelling
250 _a1
260 _bCRC Press
_c20150125
300 _a128 p
520 _bThe field of ecohydraulics integrates hydrodynamic and eco-dynamic processes. While hydrodynamic processes are usually well described by partial differential equations (PDE’s) based on physical conservation principles, ecosystem dynamics often involve specific interactions at the local scale. Because of this, Cellular Automata (CA) are a viable paradigm in ecosystem modelling. All cells in a CA system update their states synchronously at discrete steps according to simple local rules. The classical CA configuration consists of uniformly distributed cells on a structured grid. But in the field of hydrodynamics, the use of unstructured grids has become more and more popular due to its flexibility to handle arbitrary geometries. The main objective of this research is to identify whether the CA paradigm can be extended to unstructured grids. To that end the concept of Unstructured Cellular Automata (UCA) is developed and various UCA configurations are explored and their performance investigated. The influence of cell size was analyzed in analogy with the Finite Volume Method. A characteristic parameter —min distance of UCA– was put forward and tested by numerical experiments. Special attention was paid to exploring the analogies and differences between the discrete CA paradigm and discrete numerical approximations for solving PDE’s. The practical applicability of UCA in ecohydraulics modelling is explored through a number of case studies and compared with field measurements.
999 _c3293
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