Mitigating the Piston Effect in High-Speed Hyperloop Transportation: A Study on the Use of Aerofoils

The Hyperloop is a concept for the high-speed ground transportation of passengers traveling in pods at transonic speeds partially evacuated tube. It consists low-pressure tube with capsules both low and high throughout length When system travels through constrained diameter such as case Hyperloop, it becomes an aerodynamically challenging problem. Airflow tends to get choked areas around pod, creating high-pressure region front phenomenon referred “piston effect.” Papers exploring potential solutions piston effect are scarce. In this study, using Reynolds-Average Navier–Stokes (RANS) technique three-dimensional computational analysis, aerodynamic performance pod inside vacuum studied. Further, aerofoil-shaped fins added aeroshell way mitigate effect. results show that addition helps reducing drag eddy currents while providing positive lift pod. these found be effective pressure build-up