Application of LES in simulation of fluid buffet on core barrel excited by FIV
Creators
- 1. Mechanical Laboratory for Reactor Structure of Nuclear Power Institute of China, Chengdu (China)
Description
The fluid field in down comer between reactor vessel and core barrel of Qinshan II phase 1:5 model test is simulated with LES, and the pulse pressure distribution on the surface of the core barrel is obtained. The effect of Smagorinsky coefficient in Smagorinsky sub-grid model is studied and the result shows that the pressure RMS decreases with the increase of the Smagorinsky coefficient. The comparison with the experiment shows that when the Smagorinsky coefficient equals 0.18, it is suitable for the model test. The pulse pressure RMS of LES agrees with the experiment, and the difference of the pulse pressure PSD between LES and the experiment is discussed. The effect on the pressure by fluid velocity is studied and the distribution of pressure in space is obtained. (authors)
Additional details
Publishing Information
- Journal Title
- Nuclear Power Engineering
- Journal Volume
- 29
- Journal Issue
- 3
- Journal Page Range
- p. 28-31
- ISSN
- 0258-0926
INIS
- Country of Publication
- China
- Country of Input or Organization
- China
- INIS RN
- 43075173
- Subject category
- S22: GENERAL STUDIES OF NUCLEAR REACTORS;
- Descriptors DEI
- COMPARATIVE EVALUATIONS; COMPUTER CODES; COMPUTERIZED SIMULATION; CONTAINERS; DISTRIBUTION; FLUIDS; L CODES; PRESSURE DEPENDENCE; PULSES; QINSHAN-2-1 REACTOR; REACTOR COMPONENTS; REACTOR CORES; SPACE; SURFACES; VORTEX FLOW
- Descriptors DEC
- COMPUTER CODES; ENRICHED URANIUM REACTORS; EVALUATION; FLUID FLOW; POWER REACTORS; PWR TYPE REACTORS; REACTOR COMPONENTS; REACTORS; SIMULATION; THERMAL REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS
Optional Information
- Notes
- 10 figs., 4 refs.