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.

Assessment of Numerical Methods for Time-Dependent Transport Calculations of Subcritical Systems

Carta, M.;
1998-10-05

Abstract

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.
5-ott-1998
Fisica del reattore
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.12079/6080
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
social impact