The Effects of the PEM Fuel Cell Performance with the Waved Flow Channels

Table 2

Analytical formulae for source terms in governing equations.

	𝑆𝑢	𝑆𝑣	𝑆𝑐	𝑆𝜙
Flow channel	0	0	—	—
Diffusion layer	−𝑣𝜀^2𝑘𝑝𝜀𝑢−^3eff𝐶𝐹𝜌𝑢𝑘𝑝√𝑢^2+𝑣^2	−𝑣𝜀^2𝑘𝑝𝜀𝑣−^3eff𝐶𝐹𝜌𝑣𝑘𝑝√𝑢^2+𝑣^2	0	0
Catalyst layer	−𝑣𝜀^2𝑘𝑝𝜀𝑢−^3eff𝐶𝐹𝜌𝑢𝑘𝑝√𝑢^2+𝑣^2	−𝑣𝜀^2𝑘𝑝𝜀𝑣−^3eff𝐶𝐹𝜌𝑣𝑘𝑝√𝑢^2+𝑣^2	H2𝑗∶−^𝑎2𝐹𝐶𝑎,O2𝑗∶−^𝑐4𝐹𝐶𝑐,H2𝑗O∶^𝑐2𝐹𝐶𝑐	𝑗
Membrane	−𝑣𝜀^2𝑘𝑝𝜀𝑢−^2eff𝐶𝐹𝜌𝑢𝑘𝑝√𝑢^2+𝑣^2+𝑘𝑝𝑣𝑍𝑓𝐶𝐻+𝐹⋅∇𝜙𝜕𝑢𝜕𝑥	−𝑣𝜀^2𝑘𝑝𝜀𝑣−^2eff𝐶𝐹𝜌𝑣𝑘𝑝√𝑢^2+𝑣^2+𝑘𝑝𝑣𝑍𝑓𝐶𝐻+𝐹⋅∇𝜙𝜕𝑢𝜕𝑥	𝑍𝐹𝐷𝑅𝑇^𝑘,eff,𝐻+⋅𝐶𝐻^+𝜕^2𝜙𝜕𝑥^2+𝜕^2𝜙𝜕𝑦^2	0