Study of the Coaxial Swirling Jet Flow Field in A Cylindrical Combustion Chamber

In this paper, the numerical simulation of the coaxial swirling jet f low field in a cylindrical combustion chamber is introduced.
Two vane-type swirlers with vane angle of 45°and 60° respectively arэ used in the experiments for study.The axial, radial and tangential velocity components of the flow field are measured with a five-hole pressure probe.
A modified turbulent vorticity transport equation recently drived by o ne of the authors is used in carrying out this numerical simulation the predictions of the flow field are obtained by using ω-φ method and the turbulence K-e two equatipns model.
The present investigation suggests that the calculation method intro-ueed by the authors is easy to handle for numerical simulation of strong-swirling and recirculating flows, therefore, this method is adequate for engineering purposes.