simulation naca 2d
hello for everyone
i simulated an airfoil naca 633618 2D in ANSYS fluent with raynolds 9 e5 i used the turbulence model Spalart Allmaras , when i keep the solution methode as default (schem(simple),momuntium (first ordre)) i get some result of CD greater than or duble when i use the same parametre with changing the momuntum to seconde order.
the value of y+ is varie etwin .05 and 0.95
can the anyone help me to choose the rigt solution methode
thank you in advance
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