Effects of Jet Rotational Angle on the Second Combustor of Boron-based Propellant Solid Rocket Ramjets

Theoretical investigation on the behavior of the second combustion performance in the boron-based propellant solid rocket ramjets is presented.Based on eddy-dissipation reaction model and discrete random walk model,a two phase flow combustion model in the after-burning chamber is constructed and the combustion is simulated by a three-dimension compute fluid dynamic software.The numerical calculating results show that,the combustion efficiency and the ignition and combustion of boron particle can be advanced by increasing the jet rotational angle.