CFD CALCULATIONS OF A MOVING ANGULAR ROTATION PLATE

CFD CALCULATIONS OF A MOVING (ANGULAR ROTATION) PLATE IN A FLUID FLOW Inlet Fluid Flow is Constant Plate Angular Rotation is Constant Axis of Rotation Z AXIS Angular Rotation of Plate (steel) Outlet Fluid Flow Inlet Fluid Flow 1

Outlet Mesh Inlet Mesh Side Mesh Free slip surface Plate Mesh Base Plate Mesh Non slip surface CFD and LAGRANGIAN MESH Plate (steel) 2

Axis of Rotation (Z axis) 5 Hz MAGNITUDE AND FREQUENCY OF ANGULAR MOTION OF THE PLATE 3

Inlet Fluid Flow is Constant PLAN VIEW OF THE MOTION OF PLATE IN THE FLUID FLOW Plate Angular Rotation is Constant 4

Fluid Flow Constant 11 m/s Y direction Plate Response Locations Forcing Frequency ~5 Hz 5

Fluid Flow Constant 21 m/s Y direction Plate Response Locations Forcing Frequency ~5 Hz 6

Fluid Flow Constant 41 m/s Y direction Plate Response Locations Forcing Frequency ~5 Hz 7

Fluid Flow Constant 11 m/s Bottom EFFECTIVE STRESS (MPA) AT TOP AND BOTTOM EDGE Axis of Rotation Z AXIS Top 8

Fluid Flow Constant 21 m/s Bottom EFFECTIVE STRESS (MPA) AT TOP AND BOTTOM EDGE Axis of Rotation Z AXIS Top 9

Fluid Flow Constant 41 m/s Bottom EFFECTIVE STRESS (MPA) AT TOP AND BOTTOM EDGE Axis of Rotation Z AXIS Top 10

LOCATION AND MAGNITUDE OF SPL AT THE FIELD POINTS Before the plate INLET Field point (typ) Outlet Middle of the plate Inlet N 938 N 940 0. 25 m N 942 After the plate OUTLET 0. 3 m N 945 N 944 11

SPL IN THE FLUID 11 m/s FLUID FLOW Simulation time 4. 5 s 11 m/s 12

SPL IN THE FLUID 21 m/s FLUID FLOW Simulation time 4. 5 s 21 m/s 13

SPL IN THE FLUID 41 m/s FLUID FLOW Simulation time 4. 5 s 41 m/s 14