VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
  • Comparison of two types of roughness model for a dam break simulation using SPH [Elektronski vir]
    Žagar, Dušan, 1963- ...
    The paper presents a study of a failure of a dam located at Kolarjevvrh, Slovenia. In case of such an event, water would rush with very high velocity through a steep valley with 10-30% slope to the ... plain 700 m below. The surge front and free surface in such conditions are difficult to simulate with conventional numerical schemes. The meshless Smoothed Particle Hydrodynamics (SPH) method provides a good alternative. However, the treatmentof boundaries is not straightforward in SPH, and friction plays a significant role in the analysed case. Žagar et al. (2009) modelled the roughness by adding random elevation differences to the surface geometry. In this study, a variable roughness parameter was introduced to the SPH model instead. Both solutions showed good results with slight variances. A comparison between the two approaches is presented, as well as a comparison toa curvilinear finite volume model and measurements on a physical model.
    Vrsta gradiva - prispevek na konferenci ; neleposlovje za odrasle
    Leto - 2011
    Jezik - angleški
    COBISS.SI-ID - 5505633