Flow-induced vibration 1 Fluid structure interaction 1 Fluid-structure interaction 1 Fluid–structure interaction 1 Flux noise 1 Fuel assembly 1 Mechanical modeling 1 Mechanisms 1 Neutron flux noise 1 Oscillating flow 1 Pressure vessels 1 Pressurized water reactors 1 RPV internals Reactor Pressure Vessel 1 Reactor pressure vessel internal 1 Reduced order model 1 Reduced order modelling 1 Reduced-order model 1 Vibrations (mechanical) 1