Ffowcs-Williams Hawkings Model Simulation Exercise 2— Assigning Boundary and Volume Condition
Changing the Acoustic Module
1. In the Flow Analysis tree under Physics select Acoustic.
2. In the Model tab under Property, changeBroadband source toFfowcs-Williams Hawkings model from the Analysis type drop-down list.
Specifying Rotor boundary Conditions
1. In the Flow Analysis tree under > , select PROPELLER_Body_1.
2. Select Source from the Acoustic drop-down list.
Changing the Rotor volume Conditions
1. In the Flow Analysis tree under Domains, select PROPELLER_Body_1 and
2. In the Properties panel, click the Model tab.
3. For Common, set the following values:
◦ Volume Remesh—Volume Remesh
◦ Method—Rotation
◦ Rotational Direction—Counterclockwise
◦ Rotational Speed—5100 rpm
◦ Rotational Axis Vector—0,0,-1
◦ Rotor Center—0,0,0
4. Under Flow, change Noninertial frame to No.