Choice of a turbulence grid and model to calculate the discharge coefficient of the standard orifice plate

Measurement-integrated simulation of wall pressure measurements using a turbulent model for analyzing oscillating orifice flow in a circular pipe

“…The dependency of the discharge coefficient on the RANS turbulent model is small [12]; therefore, the standard k-e model given in Launder and Spalding [13] was used to improve computation stability and decrease load.…”