Construction and analysis of improved Kirchhoff conditions for acoustic wave propagation in a junction of thin slots. (English) Zbl 1156.76422
Summary: We analyze via the theory of matched asymptotics the propagation of a time harmonic acoustic wave in a junction of two thin slots. This allows us to propose improved Kirchhoff conditions for the 1D limit problem. These conditions are analyzed and validated numerically.
MSC:
76M25 | Other numerical methods (fluid mechanics) (MSC2010) |
76Q05 | Hydro- and aero-acoustics |