Lecture 12 of 'Advanced Numerical Methods' (wi4212)

• The following subjects are discussed:
  
  
  • variable coefficient acoustics equations
  • constant and variable impedance media
  • Riemann problem for the variable coefficient acoustics equations
  • transmission and reflection coefficients
  • Godunov's method, high resolution methods
  • homogenization of rapidly varying coefficients
    
    
  Corresponding sections in the book: Section 9.6 to 9.14
  
  
• Exercise 9.5 can be made.
  
  
• Additional information
  
  
  • Animation of variable-coefficient acoustics problems.