Basic Research
Work foreseen
In the KASOLA facility, basic phenomena, related to the thermal-hydraulic flow in a sudden expansion and the transitional behaviour of the flow during different flow regimes will be investigated in the frame of the Helmholtz Alliance for Liquid Metal Technologies (LIMTECH).
Thermal-hydraulic flow in a vertical backward facing step with heated walls and sodium coolant
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The flow in components with changing flow area like at the inlet and outlet of heat exchangers, tanks, and piping systems causes a change in the thermal-hydraulic behaviour. Though this topic has been dealt since many years, special issues are still open. Our related experimental and numerical work will focus on:
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Transition between free, mixed and forced convection with liquid sodium
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The heat transfer regime during normal operation of a power station is usually forced convection. During start-up or shut-down conditions and during accidents, however, mixed and natural convection might occur leading to instabilities in the heat removal. Another important topic concerns the thermal load of surfaces: At any time, it should keep below predefined limits. Our related experimental and numerical work will focus on:
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