The numerical solution of the time dependent transport equation is considered for subcritical injected systems. The scope of the work is to assess the performance of time-implicit discretization schemes of common use.The numerical discretization error is studied with the Fourier method; the separate effects of the time discretization and of the space and angle discretizations are considered.The computational effort required to simulate paradigmatic transients is evaluated.To reduce the costs a modified diffusion acceleration method is proposed, which provides accurate results with substantially lower computational cost.
|Titolo:||Assessment of Numerical Methods for Time-Dependent Transport Calculations of Subcritical Systems|
|Data di pubblicazione:||5-ott-1998|
|Appare nelle tipologie:||4.1 Contributo in Atti di convegno|