Separation and reattachment of a twodimensional incompressible turbulent jet
Abstract
The steady and timedependent incompressible turbulent mean flow equations are numerically solved for the problem of separation and reattachment of a finite twodimensional jet issuing parallel to an adjacent plate (sidewall). A finite differencing procedure was utilized in rewriting the governing equations in the finite difference form. The advection (convection)terms are written in the divergence form in the vorticity transport equation, and the upwind or unidirectional differencing scheme is adopted for those terms to obtain stable numerical solutions. GaussSeidel iteration method was used to solve numerically, the steady equations, and the alternating direction implicit method is adopted to iterate the timedependent equations. The results are presented as contour plots of stream function, vorticity, mean resultant velocity, and pressure. The velocity distribution across the jet and the wall pressure distribution are included. The transient flow development obtained from the numerical solutions and the sequential photographs of the surface flow patterns from flow visualization study are compared.
 Publication:

Ph.D. Thesis
 Pub Date:
 December 1975
 Bibcode:
 1975PhDT........29G
 Keywords:

 Incompressible Flow;
 Turbulent Jets;
 Two Dimensional Jets;
 Finite Difference Theory;
 Flow Equations;
 Flow Visualization;
 Numerical Analysis;
 Velocity Distribution;
 Fluid Mechanics and Heat Transfer