The Effects of Obstacles on Waves Emanating from the Dam Break using SPH
سال انتشار: 1390
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 1,725
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شناسه ملی سند علمی:
NCHP03_389
تاریخ نمایه سازی: 3 فروردین 1391
چکیده مقاله:
SPH is a Lagrangian meshless particle method, which can be efficiently used for simulation of turbulent free surface flows in fluids and solution of large fluid deformations. The method is used for simulation of a flow emanating from a dam break and its collision with obstacles in the way which results in substantial change in free surface and velocities. The basis of SPH is briefly reviewed, and the Navier- Stokes equations including mass conservation and momentum equations are discretized accordingly. An explicit prediction-correction fractional steps formulation is used for simulation of fluid flow. Although the time steps are much shorter than required by other less flexible methods, the method remains robust and efficient. Finally, the present paper concludes by comparisons the results of the volume of fluid (VOF) method, for which a close agreement is observed
کلیدواژه ها:
نویسندگان
Hejar Jebeli Aqdam
MSc Student School of Civil Engineering, University of Tehran
Masood Montazeri Namin
Assistant Professor School of Civil Engineering, University of Tehran
Soheil Mohammadi
Professor School of Civil Engineering, University of Tehran
Omid Seyedashraf
Ms.c Student of Hydraulic Engineering, Razi University of Kermanshah