Earth
Lava flow: cooling changes the journey
A hot viscous flow advances down a slope, loses heat and thickens as its viscosity rises.
Try this
Increase the supply or slope. Compare the advancing hot front with the darker cooling surface.
The model and its limits
One-dimensional viscous gravity current with radiative cooling and conservative volume transport. Time is accelerated 30 times. No crystallisation chemistry or hazard prediction.
Equations used in the module
Equations q = rho g sin(theta) h^3 / (3 mu) dh/dt + dq/dx = 0
