3.2. Chemical mechanism
4.1. Validation of numerical model
To validate the numerical model, first the electric currents as a function of the applied electric potential are computed with the model and compared to the experimental values for electrode distances of 3.7mm,10mm and 20mm. The burner plate Calpain Inhibitor II considered to be the ground electrode and the computational domain extends to the second electrode at distance dd. The inflow temperature is set to 288K and the inflow mixture mass flow rate is 1.23gcm-2s-1, corresponding to the adjusted methane flow rate of 1.733slpm at stochiometric conditions.
Figure 2 shows the electric current as a function of the applied electric field for the different electrode distances under consideration. Note that a positive potential value denotes a positive polarity at the downstream electrode. The close agreement of the saturation currents obtained for different electrode distances indicates that the influence of the electrode presence on the combustion is very similar for all considered electrode distances, if leaf primordia has an impact at all.