Menoufia University, Faculty of EngineeringERJ. Engineering Research Journal1110-118031220080401NUMERICAL STUDY OF FLOW IN AXISYMMETRIC TURBULENT OPPOSED JET1591706952910.21608/erjm.2008.69529ENA.Abdel- FattahDepartment of Mechanical Power Engineering, Faculq ofEngiizeering Minoufya
University, Shebin El-Kom, Egypt.Journal Article20200130In this study the numerical investigation for unsteady two dimensional of turbulent opposed jets is <br />presented. The numerical study is based on the solution of the complete Navier - Stokes equations <br />and turbulence models using a finite volume technique. TDMA solver is used to solve the <br />algebraic equations. The pressure - velocity coupling is achieved using the SIMPLE method. <br />Simulation is carried out for a range of Reynolds number 5000 5 Re 5 11700. The distance <br />between the exit of two nozzles is 0.4 5 Wd 5 1.0. The results show that the radial velocity <br />increases in downstream direction until maximum and then decreases. This change depends on tbe <br />distance between the nozzles exit and the flow time. The axial velocity decays in the down stream <br />direction on the axial direction. The turbulence kinetic energy and the normal stress in the axial <br />direction increase and they become a maximum at the stagnation point, which occurs in the <br />separation plane. The pressure coefficient at the stagnation point decays in downstream direction. <br />This decay decreases by increasing the distance between the nozzles. The comparison between thehttps://erjm.journals.ekb.eg/article_69529_a8b69e51bde760403177b64ea0c44e33.pdf