To investigate the deflection effect of gas plasma plume controlled by magnetic field

a novel experimental scheme was presented. The Cs2CO3 catalytic ionization seeds were injected into the combustion chamber to obtain gas plasma on a high temperature magneto hydrodynamic (MHD) experiment rig. The plasma jet was deflected under the action of an external magnetic field

resulting in a thrust-vector effect. Particle image velocimetry (PIV) collected two-dimensional images of jet flow field. Through image processing and velocity vector analysis

the jet deflection angle can be obtained quantitatively. At 1800-2500K

the jet deflection was verified experimentally under the condition of 0.45T magnetic field strength. The results indicate that the jet deflection angle increases gradually with the increase of gas temperature

and above 2200K

the jet deflection angle increase obviously. In the process of gas plasma jet

it is feasible to realize the jet deflection controlled by MHD by adding an external magnetic field.