In: Journal of Hydrology and Hydromechanics, vol. 66, no. 4
Yvetta Velísková - Zdeněk Chára - Radoslav Schügerl - Renáta Dulovičová
Rok, strany: 2018, 448 - 456
Velocity profile; Computational fluid dynamics (CFD); Free surface flow; Bridge; ADV; Laboratory flume; Numerical simulation; RANS models.
URL originálneho zdroja: http://www.ih.sav.sk/jhh
This paper deals with studying of two topics – measuring of velocity profile deformation behind a over-flooded construction and modelling of this velocity profile deformation by computational fluid dynamics (CFD). Numerical simulations with an unsteady RANS models - Standard k-ε, Realizable k-ε, Standard k-ω and Reynolds stress models (ANSYS Fluent v.18) and experimental measurements in a laboratory flume (using ADV) were performed. Results of both approaches showed and affirmed presence of velocity profile deformation behind the obstacle, but some discrepancies between the measured and simulated values were also observed. With increasing distance from the obstacle, the differences between the simulation and the measured data increase and the results of the numerical models are no longer usable.
Velísková, Y., Chára, Z., Schügerl, R., Dulovičová, R. 2018. CFD simulation of flow behind overflooded obstacle. In Journal of Hydrology and Hydromechanics, vol. 66, no.4, pp. 448-456. 0042-790X (until 2019) .
Velísková, Y., Chára, Z., Schügerl, R., Dulovičová, R. (2018). CFD simulation of flow behind overflooded obstacle. Journal of Hydrology and Hydromechanics, 66(4), 448-456. 0042-790X (until 2019) .