Fluidelastic instability of a fuel rod bundle subjected to combined axial flow and jet cross-flow

I Gad-el-Hak, N Mureithi, K Karazis - Journal of Fluids and Structures, 2023 - Elsevier
Nuclear fuel bundles are subjected to axial coolant flow in addition to jet cross-flow in a
specific design of pressurized water reactors (PWRs). The combined axial flow and jet cross …

Principal component analysis of vibration response of a rod bundle subjected to jet cross-flow

I Gad-el-Hak, N Mureithi, K Karazis… - Journal of Sound and …, 2023 - Elsevier
Flow injecting through loss of coolant accident (LOCA) holes in the baffle plates of some
pressurized water reactors (PWRs) can potentially induce vibrations of reactor fuel …

Fluidelastic instability of a rod bundle subjected to jet cross-flow

I Gad-el-Hak, N Mureithi, K Karazis - Journal of Fluids and Structures, 2023 - Elsevier
Jet flow emanating from loss of coolant accident (LOCA) holes in the baffle plates of some
pressurized water reactors (PWRs) was found responsible for flow-induced vibration in …

Non-uniform cross flow induced vibration of tube bundle based on High-Speed visual measurement

Z Xiong, X Li, S Wang, L Shi, S Gong - Annals of Nuclear Energy, 2024 - Elsevier
The study investigates cross flow-induced vibration under conditions of transverse flow
nonuniformity through a visualization-based experimental approach. Flow-induced vibration …

Mitigation of PWR fuel assembly vibrations using bio-inspired nozzles

I Gad-el-Hak, N Mureithi, K Karazis, B Painter - Scientific Reports, 2023 - nature.com
Jet flows injected in a transverse flow need rapid and effective mixing for various
applications ranging from medicine injection into bloodstreams to nuclear pressurized water …

Vibrations of PWR fuel assembly under axial coolant flow and oblique impingement of jet cross-flow from LOCA holes

I Gad-el-Hak, N Mureithi, K Karazis - Nuclear Engineering and Design, 2024 - Elsevier
Nuclear fuel bundles are exposed to localized normal impinging jet cross-flow at certain
locations along the fuel rod span in a specific design of pressurized water reactors (PWRs) …

Mechanism and risk assessment of baffle-jetting-induced vibrations in fuel rods

I Gad-el-Hak, N Mureithi, K Karazis, B Painter - Nuclear Engineering and …, 2024 - Elsevier
As nuclear reactor cores approach the end of their lifespans, it is a crucial aspect to ensure
that the structural integrity of the reactor internals is not affected. The baffle-former bolts are …

Experimental Investigation of Combined Axial Flow and Jet Cross-Flow on PWR Mock-Up Array

I Gad-el-Hak, N Mureithi… - Pressure Vessels …, 2023 - asmedigitalcollection.asme.org
Some pressurized water reactors (PWRs) are designed to relieve the pressure increase in
the barrel-baffle region associated with a loss of coolant accident (LOCA). Flow holes, called …