The influence of bulk conductivity on Lorentz force generated by coplanar waveguide

Lorentz force has been used to modify the boundary layer around the controlled body. The Coplanar Waveguide (CPW) structure can support a quasi-TEM (Transverse Electromagnetic) mode of low frequency microwave propagation. Meanwhile the Lorentz force could be induced by electric and magnetic fields in the cross section. But the force is deeply influenced by the fluid bulk conductivity. Therefore, in this paper, particular emphasis is placed on exploring the effect of varying bulk conductivity on the Lorentz force. The results show that the microwave attenuation increases very rapidly with the increase of frequency and bulk conductivity. Moreover, the strength of Lorentz force is increased with the bulk conductivity over 0∼1s m−1.