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This paper presents an innovative approach in analyzing the sloshing physics of liquid H2 compared to LNG. The fluid model is based on finite particles featuring phase transition and heat exchange models verified against CFD analyses and experimental results from literature. It particularly matches the characteristic Nusselt, Reynolds, and Dean numbers identified by intensive literature survey. Based on pipe flow verification and the authors’ experience in the sloshing analysis of LNG tank geometries, unsteady impact loads are computed for a generic H2 tank configuration.

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