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The ANTC incorporates diverse expertise in both experimental techniques and computational technologies. The Centre is able to utilise the facilities at the University which include a selection of wind tunnels and computing clusters.
Wind tunnels and technologies
Experimental facilities at the University include a range of low speed wind tunnels for aerodynamic and acoustic measurements. There is also a large anechoic chamber at ISVR. The anechoic chamber has internal dimensions of 9.15 m x 9.15 m x 7.32 m. The wedge length is 0.91 m giving free-field conditions at frequencies above 80 Hz. The University of 天发娱乐棋牌_天发娱乐APP-官网|下载 is currently building a new anechoic wind tunnel at the Boldrewood campus. This will be part of the National Wind Tunnel Facilities. It is a closed return, open jet wind tunnel. The nozzle dimensions are 1 m x 0.75 m and the maximum flow velocity is 80 m/s. The internal dimensions of the anechoic chamber are 8.1 m x 4.4 m x 5.5 m. It is due for completion in 2018.
Computational Facilities
The University's high performance state-of-the-art computing clusters are utilised to run?an in-house code, known as?SotonCAA, for large-scale parallel computing.
Computational facilities include:
- Iridis4 Compute Cluster?- Linux computing cluster based on?Intel Sandybridge?processors
Software
The high-order computational aeroacoustics program SotonCAA has been developed within the centre and is at the forefront of numerical noise prediction technology.
Details of the SotonCAA program:
Governing equations:
- Large-eddy and detached-eddy simulations
- Reynolds averaged Navier-Stokes simulations
- Full Euler, linearised Euler and acoustic perturbation equations
Numerical schemes:
- Spatial derivatives: 6th order pre-factored and optimised compact schemes, or 4th order penta-diagonal schemes
- Time integration: 4th-order 4/6 stage RK and 2nd order implicit schemes
- Boundary conditions: slip wall, buffer zone, time domain impedance, characteristic interfaces, etc.
- Curvilinear coordinates, multi-block, structured grids
- Parallel solutions running MPI on Linux PC clusters
- Integral solution of Ffowcs Williams and Hawkings equation