Dynamics of electroconvective wave flows in a modulated electric field

Wave regimes of finite-amplitude electroconvection in a poorly conducting fluid heated from above in a modulated field of a horizontal capacitor are analyzed. Low conductivity of the fluid is ensured by the charges injected from the anode and intrinsic (dissociated) ions. A bifurcation diagram of solutions is constructed. Apart from the regimes of modulated standing and traveling waves, stable waves changing their direction of motion are detected, as well as waves with a chaotically varying phase velocity.