EOS	Artificial viscosity constants
Gruneisen	(q₁ = 0.1; q₂ = 0) and (q₁ = 1; q₂ = 1)
Linear polynomial	(q₁ = 0.1; q₂ = 0) and (q₁ = 1; q₂ = 1)
Morris	(q₁ = 0.1; q₂ = 0) and (q₁ = 1; q₂ = 1)