Turbulenter Wärmetransport in flüssigem Blei-Wismut an einem vertikalen Heizstab im Ringspalt

Heavy liquid metals(HLM) are considered as coolant and neutron source for advanced nuclear applications. In this context the turbulent heat transfer of a lead bismuth flow along a heated rod con-centrically arranged in an annular cavity is ascertained at prototypical power densities. The hydraulically fully developed and thermally developing flow is investigated experimentally and compared with numerical simulations. Also a new local heat transfer correlation for forced convection is presented.