Numerical Modelling of Flow Induced vibrations in Nucelar fuel rods

3 Nov 2025, 14:22
7m
60/Ground-105 - Lecture Hall (Administration Building)

60/Ground-105 - Lecture Hall

Administration Building

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Description

Flow induced vibration (FIV) is a known problem
in nuclear reactors which exist due to the interaction
between the turbulent flow of the coolants and the fuel
rod bundles generating vibrations which are
undesirable. These vibrations can be a major cause of
fatigue failures, stress corrosion cracking and fretting
wear of materials, which lead to stand-still costs. To
numerically model the interaction between the fluid
and the structure, the system should couple the solvers
for both the phases. Coupling is achieved by mapping
the forces and displacements at the interface of fluid
and structure domains, also known as the partitioned
coupling.

Technical Track Nuclear Thermal-Hydraulics

Primary author

FARHATHUDHEEN PANNIYADI (Mechanical Engineering)

Co-authors

Afaque Shams (Industrial Nuclear Energy (I) - IRC - General) Osman Kaleem Siddiqui (Interdisciplinary Research Center for Industrial Nuclear Energy (IRC-INE), King Fahd University of Petroleum & Minerals (KFUPM))

Presentation materials