Numerical modelling of the flow in a meandering channel is compared with experiments done by one of the authors. A peculiar 2DH model, where bottom shear stresses are computed taking into account also accelerations, has been developed for the comparison. Good results are obtained in some sections of the channel, but, in others, some experimentally observed flow features are not well reproduced. An explanation is offered for the difficulties encountered in modelling the strong secondary current that appears along the bend.
|Titolo della pubblicazione ospite||HYDRAULICS OF RIVERS WATER WORKS AND MACHINERY, VOL II, THEME D, PROCEEDINGS: 21ST CENTURY: THE NEW ERA FOR HYDRAULIC RESEARCH AND ITS APPLICATIONS|
|Numero di pagine||7|
|Stato di pubblicazione||Published - 2001|