Estimation of Fluid Forces Acting on a Revetment Block in Subcritical and Supercritical Flows Using 3d Numerical Open Channel

Key Points

• This research aims to estimate fluid forces acting on a revetment block in different flow conditions.
• Installed a single V-shaped roughness block in an open channel under subcritical and supercritical flow conditions.
• Conducted large-scale parallel calculations using a 3D numerical open channel model to reproduce flow and estimate fluid forces.
• Compared experimental results with numerical results to validate the calculations.
• Performed numerical experiments with a flat plate block to analyze fluid forces due to vortex attachment.
• Evaluated hydraulic quantity distributions and fluid force characteristics for groups of V-shaped blocks.
• Demonstrated that flat plate blocks experience greater lift and moments due to vortex attachment.
• Validated numerical models against experimental results, confirming their reliability in estimating fluid forces.
• Evaluated fluid force characteristics for configurations with 140 V-shaped blocks, providing insights into group behaviors.