Topic description

Thermal systems play a central role in energy and propulsion technologies, particularly in sectors subject to stringent performance, reliability, and operational safety requirements such as aerospace and space applications. In these fields, heat exchangers are essential components for thermal management and energy flow control.

ArianeGroup, a global leader in civil and military space propulsion, develops and operates complex thermal systems under extreme pressure, temperature, and heat flux conditions. Within this context, the company has a particular interest in thermo-hydraulic phenomena occurring in heat exchangers operating under two-phase (liquid-vapor) flow conditions, especially those used in launcher engine cooling circuits and cryogenic systems.

These two-phase systems are prone to thermo-hydraulic oscillations (flow instabilities, pressure oscillations, and temperature fluctuations) resulting from the complex interaction...