With autonomous meshing, it’s easy to simulate moving geometries in CONVERGE. In this video, we simulated a train entering and passing through a tunnel to investigate the effect of the train on the velocity of the air and the pressure variations along the tunnel. These simulations are valuable for designing appropriate tunnel ventilation systems, such as determining the best size and location for fans inside the tunnel, and to mitigate tunnel boom. The first view shows isosurfaces of the velocity magnitude, colored by pressure (blue indicates low values, and red indicates high values). In the second view, you can see how Adaptive Mesh Refinement (AMR) was used to capture gradients in velocity as the train passes through the tunnel. The last view shows the velocity at different positions along the length of the domain. We leveraged CONVERGE’s turbulence modeling and AMR to obtain high-fidelity results for pressure and velocity, while maintaining a reasonable computational cost.
Convergent Science's CONVERGE is an innovative computational fluid dynamics (CFD) software that eliminates the grid generation bottleneck from the simulation process through autonomous meshing.
Негізгі бет Simulating a Train Passing Through a Tunnel
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