Numerical solution of the high frequency asymptotic expansion for the scalar wave equation

• New numerical methods are derived for calculation of high frequency asymptotic expansion of the scalar wave equation. The nonlinear partial differential equations defining the terms in the expansion are approximated directly rather than via ray tracing, High resolution numerical algorithms are used to handle discontinuities and new devices are introduced to represent the multivalued character of the solution.

Ämnesord

NATURVETENSKAP  -- Data- och informationsvetenskap (hsv//swe)

NATURAL SCIENCES  -- Computer and Information Sciences (hsv//eng)

Nyckelord

HAMILTON-JACOBI EQUATIONS; TRAVELTIMES

Publikations- och innehållstyp

ref (ämneskategori)

art (ämneskategori)