COMSOL Model Report
Space dimensions: 2D
Independent variables: x, y, z
| Number of degrees of freedom | 58832 |
| Number of mesh points | 14816 |
| Number of elements | 29200 |
| Triangular | 29200 |
| Quadrilateral | 0 |
| Number of boundary elements | 432 |
| Number of vertex elements | 12 |
| Minimum element quality | 0.701 |
| Element area ratio | 0.001 |
Application mode type: Pressure Acoustics (Acoustics Module)
Application mode name: acpr
| Name | Variable | Value | Description |
| freq | freq_acpr | 100 | Excitation frequency |
| kz | kz_acpr | 0 | Out-of-plane wave number |
| p_i | p_i_acpr | exp(-i*k_acpr*x) | Incident pressure wave |
| p_ref | p_ref_acpr | 20e-6 | Pressure reference |
| Property | Value |
| Default element type | Lagrange - Quadratic |
| Analysis type | Time-harmonic |
| Damping | Off |
| Specify eigenvalues using | Eigenfrequency |
| Solve for | Total wave |
| Symmetry plane x=0 | Off |
| Symmetry type for x=0 | Symmetry |
| Symmetry plane y=0 | Off |
| Symmetry type for y=0 | Symmetry |
| Frame | Frame (ref) |
| Weak constraints | Off |
Dependent variables: p
Shape functions: shlag(2,'p')
Interior boundaries not active
| Boundary | 1, 3 | 2 | |
| Type | Radiation condition | Radiation condition | |
| Pressure source (p0) | Pa | 0 | 0 |
| Inward acceleration (nacc) | m/s2 | 0 | 0 |
| Source location, x coordinate (x0) | m | 2 | 2 |
| Source location, y coordinate (y0) | m | 2 | 24 |
| wavetype | 1 | PL | CYL |
| Boundary | 4-6 | 7 | 8 |
| Type | Sound hard boundary (wall) | Radiation condition | Radiation condition |
| Pressure source (p0) | 0 | 0 | 0 |
| Inward acceleration (nacc) | 0 | 0 | 0 |
| Source location, x coordinate (x0) | 4 | 17 | 4 |
| Source location, y coordinate (y0) | 4 | 8 | 4 |
| wavetype | CYL | CYL | PL |
| Boundary | 9-12 |
| Type | Normal acceleration |
| Pressure source (p0) | 10*cos(2*pi*f0*t) |
| Inward acceleration (nacc) | 1 |
| Source location, x coordinate (x0) | 0 |
| Source location, y coordinate (y0) | 0 |
| wavetype | PL |
| Subdomain | 1 | |
| Fluid density (rho) | kg/m3 | rho0 |
| Speed of sound (cs) | m/s | c0 |
