S25  Métodos Numéricos
 
 Title:
APPLICATION OF UPWIND-BASED SCHEMES TO THREE-DIMENSIONAL FREE SURFACE FLOWS
 
Summary :
THIS WORK IS CONCERNED WITH THE EFFECTS OF DIFFERENT APPROXIMATIONS TO THE CONVECTIVE TERMS ON THE SIMULATION OF INCOMPRESSIBLE THREE-DIMENSIONAL FREE SURFACE FLOWS. A FINITE DIFFERENCE COMPUTER CODE FOR SOLVING THREE-DIMENSIONAL FREE SURFACE FLOWS IS DESCRIBED. THE NAVIER-STOKES EQUATIONS TOGETHER WITH THE FULL STRESS BOUNDARY CONDITIONS ARE CONSIDERED. THE CONVECTIVE TERMS ARE TREATED EXPLICITLY EMPLOYING FOUR DIFFERENCE SCHEMES: THE USUAL CENTRED DIFFERENCE, A FIRST ORDER UPWIND, THE QUICK METHOD AND THE HLPA (HYBRID LINEAR PARABOLIC APPROXIMATION) SCHEME. RESULTS ARE PRESENTED SHOWING THE PERFORMANCE OF THESE SCHEMES APPLIED TO THE SIMULATION OF AN AXISYMMETRIC JET FLOWING INTO A THREE-DIMENSIONAL CONTAINER.  
 
Author :
Cuminato, Jose Alberto
Ferreira, Valdemir Garcia
Fortuna, Armando Oliveira
Norberto, Mangiavacchi 0
 
 
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