Numerical Analysis of Turbulent Flow Developing in a 30/60 Degree Right Triangular Duct

摘要

Numerical data are reported for turbulent flow developing in a right traiangular duct with internal angles of 60 and 30 deg. An overwhelming number of numerical and experimental studies on noncircular ducts have dealt with ducts that contain one or more symmetry planes. In contrast, this duct has no symmetry planes. In the calculation, and algebraic Renolds stress model was adopted in order to predict anisotropic turbulence precisely, and a boundary fitted coordinate system was introduced as the method of coordinate transformation.