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?