Challenge Analysis and Schemes Design for the CFD Simulation of PWR

Table 5

Estimation of the cell number for the CFD simulation of Qinshan I.

Region	Cell number per unit region	Region size per channel	Fuel rods per assembly	Assembly number	Total cell number of each region
Simple channel	102k/m	2.9 m		121	~8.05 billion
Mixing vane	85k/layer	6 layers		121	~13.88 billion
Spacer grid	218k/layer	8 layers		121	~47.48 billion
Total cell number > 69.41 billion