Experiments and numerical MHD analysis of LLCB TBM Test-section with NaK at 1 T magnetic field

• MHD numerical simulations and comparison with experiments on a Test-section with parallel channels and sub-ducts are performed.
• The results are relevant to lead lithium ceramic breeder blanket concept.
• The main results include pressure drop, flow rate, potential and velocity distributions.

Experiments were performed with Test-section of LLCB TBM on NaK. Test-section made of stainless steel (SS) included inlet pipe, inlet collector of rectangular cross section, two rows of parallel poloidal (vertical) ducts and outer collector with outlet pipe. Numerical simulation has been carried out using MHD module of FLUENT. Various flow properties like side wall electric potential distribution, pressure and velocity distribution has been compared with measured values.