Numerical Simulations of Flame of Single Co-Axial Injector

Kurzfassung

The processes of mixing and combustion in the jet of a shear coaxial injector are investigated. Two test cases are simulated numerically. The first test case is experiments on the mixing in a non-reacting coaxial jet carried out with the use of planar laser induced fluorescence (PLIF). The second test case is experiments on the visualisation of hydrogen/oxygen flame using PLIF of OH in a single injector combustion chamber at pressures of 10–53 bar. In the first test case the simulations are performed using the shear stress turbulence (SST) model. Due to flow unsteadiness in the second test case the turbulence is modelled using transient SAS (Scale-Adaptive Simulation) model. The combustion is modelled using the Burning Velocity Model. The numerical model agrees with the experimental data very well in the first test case and adequately in the second test case.

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