Why Numerical Hydrodynamics?

  • The mass transfer process is fundamentally a gas-dynamical process
  • Observable quantities depend on fluid properties such as density, temperature, and velocity
  • To understand observations, we must understand the gas-dynamics
  • Equations of fluid dynamics are
    • non-linear
    • time-dependent
    • multi-dimensional
    • analytically intractable
  • => Solve numerically