Radiation effect on viscous flow of a nanofluid and heat transfer over a nonlinearly stretching sheet

Table 1 Thermo-physical properties of fluid and nanoparticles (Oztop and Abu-Nada [36]).

Physical properties	Fluid phase (water)	Cu	Al₂O₃	TiO₂
C_p (J/kgK)	4179	385	765	686.2
ρ (kg/m³)	997.1	8933	3970	4250
k(W/mK)	0.613	401	40	8.9538
β ×10⁵ (K^-1)	21	1.67	0.85	0.9