Computer Science Technical Reports
CS at VT

Multirate timestepping methods for hyperbolic conservation laws

Constantinescu, Emil M and Sandu, Adrian (2006) Multirate timestepping methods for hyperbolic conservation laws. Technical Report TR-06-15, Computer Science, Virginia Tech.

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This paper constructs multirate time discretizations for hyperbolic conservation laws that allow different time-steps to be used in different parts of the spatial domain. The discretization is second order accurate in time and preserves the conservation and stability properties under local CFL conditions. Multirate timestepping avoids the necessity to take small global time-steps (restricted by the largest value of the Courant number on the grid) and therefore results in more efficient algorithms.

Item Type:Departmental Technical Report
Keywords:multirate timestepping
Subjects:Computer Science > Numerical Analysis
ID Code:913
Deposited By:Constantinescu, Mr. Emil M.
Deposited On:21 June 2006