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Volume 35 Issue 1
Feb.  2025
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WU Wenbin, Li Qing, Wang Kan. Spatial Domain-Decomposed Parallel MOC Accelerated by CMFD[J]. Nuclear Power Engineering, 2014, 35(1): 1-4.
Citation: WU Wenbin, Li Qing, Wang Kan. Spatial Domain-Decomposed Parallel MOC Accelerated by CMFD[J]. Nuclear Power Engineering, 2014, 35(1): 1-4.

Spatial Domain-Decomposed Parallel MOC Accelerated by CMFD

  • Received Date: 2012-11-28
  • Rev Recd Date: 2013-07-11
  • Available Online: 2025-02-15
  • Spatial domain-decomposing is applicable for solving the neutron transport equation on massively parallel architectures. However, the more sub-domains there are, the slower the convergence is. Then CMFD is used to accelerate the spatial domain-decomposed parallel MOC in order to overcome the problem. The CMFD coarse diffusion equation is solved by ScaLAPACK, and the CMFD results are used to update both fine-mesh scalar fluxes and inner-interface angular fluxes. Numerical results on 1D slab example illustrate that CMFD is an efficient acceleration method for the spatial domain-decomposed parallel MOC, which improves the convergence remarkably.

     

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      沈阳化工大学材料科学与工程学院 沈阳 110142

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