Week 11- Broadband Noise modelling over Ahmed body

Aim --> Broadband Noise modeling over Ahmed body

Geometry

Mesh

Body Sizing

Inflation layers

inflation_2

Mesh near the ahmed body

Inflation layers (first layer height = 0.01 mm)

Case setup

• pressure based, absolute steady-state solver
• Energy turned on.
• Viscous model --> k-w SST turbulence model
• material --> Air
• road Boundary condition
• 
• 
• Coupled scheme
• flow control courant number --> 10
• Refference values --> compute from inlet
• standard initialization
• First run the case for some iterations and then set up the acoustic models.
• Acoustic model
• 

Results

Residual plot

Cd

Cl

Pressure contour

Velocity contour

Acoustic Results

• Acoustic Power level

• Surface Acoustic power