Mixture fraction

  • Write the simple definition of mixture fraction
  • In words, write out how mixture fraction is understood for a reacting mixture.
  • Write the equation for a conserved scalar in terms of the mixture fraction.
  • What are examples of conserved scalars?
  • Under what condition is enthalpy a conserved scalar?
  • Are linear combinations of conserved scalars also conserved?
  • Compute the stoichiometric mixture fraction of ethylene in air.
  • Given a measured composition of mass fractions, outline the evaluation of the mixture fraction.
  • What’s the deal with differential diffusion?
  • What is the Bilger mixture fraction?