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Volume 32 Issue 3
Mar.  2025
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DING Xiaochuan, LU Haijin, ZHAO Qiang. An Arithmetic for Core Physics Real-time Simulation Based on ADI[J]. Nuclear Power Engineering, 2011, 32(3): 130-133.
Citation: DING Xiaochuan, LU Haijin, ZHAO Qiang. An Arithmetic for Core Physics Real-time Simulation Based on ADI[J]. Nuclear Power Engineering, 2011, 32(3): 130-133.

An Arithmetic for Core Physics Real-time Simulation Based on ADI

  • Received Date: 2010-01-24
    Available Online: 2025-03-08
  • In the core physics real-time simulation,the traditional Alternative Direction Implicit(ADI) method for solving the neutron diffusion equations requires too much calculation time to meet the real-time demand.In this paper,one fuel assembly is considered as one mesh-cell in radial direction to reduce the calculation time;the adjusting factor is added to the finite difference equations to improve the calculation accuracy.The calculation accuracy and speed are tested by its application to the core physics real-time simulation for Qin Shan NPP PHASE II.The simulation result shows that this approach is applicable for the core physics real-time simulation.With online correction technology,the online real-time simulation is accomplished.

     

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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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