The mixing of cooling fluid in rod bundles from one subchannel to another through the gaps
between the rods reduces the temperature differences in the coolant as well as along the …

The unsteady Reynolds averaged Navier–Stokes equations, combined with a Reynolds
stress model, were solved numerically to determine fully developed isothermal turbulent flow …

The flow in tight rod bundles is characterized by long-term, large-scale coherent patterns in
the stream-wise direction. In the present work, the issue of simulating these structures …

Axial flow in a rectangular channel containing a cylindrical rod has been simulated
numerically by solving the unsteady Reynolds-averaged Navier–Stokes equations with a …

Abstract Characterization of parallel flow through rod bundles is of key importance in
assessing the performance and safety of several engineering systems, including a majority …

Experiments in laminar flow in a rectangular channel containing a cylindrical rod have
revealed a flow instability in the form of weak pulsations across the gap between the rod and …

Cross-wire anemometry was used to identify and characterize coherent flow pulsations in
isothermal air flow near the gap regions of a five-rod bundle with a design pitch-to-diameter …

The turbulent flow in 37 rod bundles is investigated with CFD code FLUENT. The calculation
results were validated with experimental data at first. Then the effects of diminishing rod–rod …

This paper investigated the two-phase flow characteristics in a double sub-channel tight
lattice (P/D= 1.06). Compared to the prototype, the test channel was magnified by 2.7 times …

Turbulent flow and temperature fields were determined numerically in a rectangular duct
containing a heated rod. As the spacing δ between the rod and the duct wall decreased from …