Numerical Study of Twin-Wall Jet Interacting with Different Surfaces

The mixing of twin jets on any surface has wider importance in the field of aeronautics and mechanical engineering. The present paper presents the numerical study of mean flow characteristics of twin jets flowing over plane, inclined, and convex surfaces. The obtained results are compared with the results obtained for a jet developing over a plane and a convex surface. The mean flow characteristics considered are mean velocity profiles, decay of maximum velocity, point of intersection, and point of transformation where twin jets to a wall jet profile. Unstructured mesh using a commercial CFD tool with the RSM model is used for the analysis with a second-order advection scheme. The results show good agreement with the existing literature, and the similarity profiles are achieved in the downstream side of flow.