### Abstract

Original language | English |
---|---|

Pages (from-to) | 409-412 |

Number of pages | 4 |

Journal | Annals of Nuclear Energy |

Volume | 72 |

DOIs | |

Publication status | Published - 2014 |

MoE publication type | A1 Journal article-refereed |

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### Keywords

- Monte Carlo burnup
- coupling schemes
- implicit Euler method
- nuclear reactors

### Cite this

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*Annals of Nuclear Energy*, vol. 72, pp. 409-412. https://doi.org/10.1016/j.anucene.2014.06.019

**Time step length versus efficiency of Monte Carlo burnup calculations.** / Dufek, J. (Corresponding Author); Valtavirta, Ville.

Research output: Contribution to journal › Article › Scientific › peer-review

TY - JOUR

T1 - Time step length versus efficiency of Monte Carlo burnup calculations

AU - Dufek, J.

AU - Valtavirta, Ville

PY - 2014

Y1 - 2014

N2 - We demonstrate that efficiency of Monte Carlo burnup calculations can be largely affected by the selected time step length. This study employs the stochastic implicit Euler based coupling scheme for Monte Carlo burnup calculations that performs a number of inner iteration steps within each time step. In a series of calculations, we vary the time step length and the number of inner iteration steps; the results suggest that Monte Carlo burnup calculations get more efficient as the time step length is reduced. More time steps must be simulated as they get shorter; however, this is more than compensated by the decrease in computing cost per time step needed for achieving a certain accuracy.

AB - We demonstrate that efficiency of Monte Carlo burnup calculations can be largely affected by the selected time step length. This study employs the stochastic implicit Euler based coupling scheme for Monte Carlo burnup calculations that performs a number of inner iteration steps within each time step. In a series of calculations, we vary the time step length and the number of inner iteration steps; the results suggest that Monte Carlo burnup calculations get more efficient as the time step length is reduced. More time steps must be simulated as they get shorter; however, this is more than compensated by the decrease in computing cost per time step needed for achieving a certain accuracy.

KW - Monte Carlo burnup

KW - coupling schemes

KW - implicit Euler method

KW - nuclear reactors

U2 - 10.1016/j.anucene.2014.06.019

DO - 10.1016/j.anucene.2014.06.019

M3 - Article

VL - 72

SP - 409

EP - 412

JO - Annals of Nuclear Energy

JF - Annals of Nuclear Energy

SN - 0306-4549

ER -