Substrate Flow Heating of Planetary Interiors and the Earth's Geodynamo: A UCM Proposal

UCM Paper 39 (Phenomenological). The UCM substrate flow deposits energy in massive bodies via partial coupling to matter. The heating rate Q̇ ∝ GM²/R is derived step by step from the substrate energy flux profile. Calibrated on Earth's unexplained heat flux (~7 TW), the scaling is qualitatively consistent with anomalous brown dwarf warmth and neutron star rapid cooling. The Jupiter overprediction (~200×) is a known limitation discussed explicitly. Applied to the geodynamo, UCM substrate heating resolves three standard-model problems: the energy deficit, the early magnetic field predating inner-core solidification (~2 Gyr gap), and the core-mantle heat-flow bottleneck. Geomagnetic reversals are proposed to arise from stochastic substrate flow fluctuations. UCM preprint series on Zenodo, ORCID 0009-0005-5088-4339.