Comparison between the observed V-band light curve of RX J0513.9-6951 (panel a; Alcock et al. 1996) and that predicted from the WD accretion model panel b; Zhao et al. 2022). Panel (c) shows the initial mass accretion rate (ṁ_acc) adopted in our model. Panel (d) presents the mass transfer rate that we have calculated in this work for the irradiation efficiency is 0.15, where the WD mass is 1.3 M_⊙ and the mass of the companion star is 1.9 M_⊙.