Cao, Z. and Carling, P.A.,
A critical reflection of computational fluid dynamics applications to fluvial sedimentary systems
Dyer, Fiona J., Thoms, Martin C. and Olley, Jon M. (eds.)
In The Structure, Function and Management Implications of Fluvial Sedimentary Systems (Proceedings and Reports).
IAHS Press., .
Full text not available from this repository.
A variety of computational fluid dynamics models for fluvial flow, sediment transport and morphological evolution have been developed and are in widespread use. Yet their quality remains unclear due to poor assumptions in model formulations, implementation of sediment functions of uncertain validity, and problematic use of model calibration and verification as assertions of model veracity. This paper presents a critical reflection of computational river models. It is argued that model calibration can be subjective, verification is impossible and validation does not necessarily establish model truth. It is suggested that computational river models remain premature, and high level expertise, physical insight and experience are vital for meaningful solutions to be acquired and for limitations to be properly assessed.
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