AMUSe aims at developing a novel, robust and accurate multiscale simulation technique, supported by experimental analysis, to provide a deeper understand- ing of the boiling process at different length and time scales, from the inception of vapour bubbles (nanometers), to their growth, detachment and transport (millimetres), therefore generating a breakthrough tool in the design of future two-phase cooling systems.
This fundamental, multidisciplinary work will provide the international scientific community with the missing, largely unexplored, bridge between the microscale modelling of boiling phenomena, such as the VOF or the Level Set method, and the atomistic MD approach, with a robust thermodynamical continuum approach. With a view to the potential applications in the field of electronic cooling, the specific goals are as follows:
- Develop a novel multiscale simulation framework capturing the whole boiling process, from the bubbles nucleation up to their detachment and trans- port into the liquid, and taking into account the conjugated thermal problem through coupling between fluid and solid domain.
- Understand the critical effect of dissolved gas content in the liquid on boiling inception.
- Provide useful, physically derived, design correlations of the nucleation site density and nucleation waiting times as a function of heat flux and wall temperature, which overcome the empirical nature of the standard, classical equations