Computational analysis of Supercritical Nitrogen used in helical corrugated HTS cables

  • Gaurav Vyas


Superconducting cables have corrugations on its surface to provide flexibilities to it. These corrugations could be in different shapes and nature of each shape decides the thermo hydraulic behavior of cryogen in the cable. Generally, corrugations such as rectangular, triangular, u shaped etc are popularly utilized in cables. The present work uses helical  corrugation geometry over superconducting cables. Computational investigation of spiral corrugated cable of 1m length is done having supercritical nitrogen as coolant in it and various contours are generated.

 Thermo physical properties of SCN are incorporated in the analysis of HTS cables using Computational Fluid Dynamics (CFD). Current development of HTS cable involves 3D modeling in Open source powered engines (CAE Linux) and a solution using a solver   Fluent/CFX. The computational domain is provided with appropriate boundary condition which matches with the practical scenario. The thermo hydraulic behavior of HTS cable is estimated at different heat fluxes being imposed on cable. The obtained results were used to predict friction factors, pressure drop along the cable and total heat transferred