μ = μmax · (O2/(Ks+O2)) · (S/(Ks_s+S))
dX/dt = μ·X
τ_shear ∝ (N·D)² (impeller-driven)
Cultured meat is grown by expanding animal muscle stem cells inside a stirred-tank bioreactor. Growth follows Monod kinetics, limited by dissolved oxygen and nutrient concentration. This 2D view is a top-down cross-section: the impeller mixes the broth to keep oxygen and nutrients homogeneous, but too much agitation creates shear stress that can damage delicate cells — a key engineering trade-off, the same trade-off shown from the outside in the 3D version of this sim.
- Impeller speed — mixes the tank faster, improving oxygen transfer but raising shear stress on cells.
- Dissolved O₂ setpoint — the oxygen level the sparger maintains; too low starves the culture.
- Nutrient feed rate — glucose/amino-acid supply rate; limits growth if too low.
- O₂ gradient field — toggles a visual field showing oxygen concentration rising from the sparger ring toward the tank wall.
Real-world application: companies like Upside Foods and Mosa Meat scale exactly this kind of stirred-tank bioprocess from lab flasks to multi-thousand-litre reactors.