Gas evacuation capabilities of a single-channel tool electrode with external helix based on transient multi-phase CFD simulations

Supplementary Video to the Paper "Helical electrodes for electro-discharge drilling: Experimental and CFD-based analysis of the influence of internal and external flushing geometries on the process characteristics" containing different animations, specifically: - two-phase CFD simulations of the H1C type tool electrode - patching of gas in the bottom of the borehole - comparison of three cases out of Figure 21 of the same Paper concerning their gas evacuation capabilities