Fig 4. Results of tumour growth after 120 hours.

The white contour line indicates the edge of the tumour defined as S^t = 0.1. (A) Volume fraction of living tumour cells ${\epsilon }^{\text{LTC}}=\epsilon (1-{\omega }^{N\overline{t}})$. (B) Volume fraction of vasculature ε^v. (C) Mass fraction of oxygen in the interstitial fluid (IF) ${\omega }^{n\overline{l}}$. (D) Mass fraction of necrotic tumour cells ${\omega }^{N\overline{t}}$ visualised over the cut marked by the dashed line in Fig 4A. (E) Temporal evolution of the radius of the tumour and of its necrotic core. (F) Pressure p^l in the IF.