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Thermal Fluids Research and Development Relevant to Oscillating Heat Pipes

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Thermal Fluids Research and Development Relevant to Oscillating Heat Pipes

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Oscillating Heat Pipes (OHP) or Pulsating Heat Pipes (PHP) are an emerging two-phase thermal control technology that could enable new NASA mission concepts and operations. These passive devices have shown unmatched capability to accommodate high heat fluxes and significant heat loads with minimal mass and volume usage. However, the high performance of OHPs relies on complex coupled physical phenomena including thin liquid film evaporation, condensation, boiling, and convection super-imposed with high-speed oscillatory fluid flow in micro channels.

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