NATURAL CONVECTION OF THE EARTH LIQUID CORE IN THE PRESENCE OF INTERNAL HEAT SOURCES S. V. Solov'ev UDC 536.25 Results of natural-convection heat transfer in the earth liquid core in the presence of internal sources are presented. Consideration is given to boundary conditions of the I, II, and III kind for the temperature. The effect of internal heat sources on the hydrodynamics and heat transfer of the core is studied. JEPTER7492019997 JEPTER749207