Computational thermal fluid dynamic analysis of Hypervapotron heat sink for high heat flux devices application

Assessment of hypervapotron heat sink performance using CFD under DEMO relevant first wall conditions

“…The geometry of the HV used for testing the capability is Boxscrapper geometry [6], which was the most loaded component among all beam line elements used in JET Neutral beam Injector Boxes [7]. Apart from this geometry in the previous work several other HV geometries with different cavity shapes and sizes were validated [6], using the CFD code, where several boiling models were tested.…”

“…Apart from this geometry in the previous work several other HV geometries with different cavity shapes and sizes were validated [6], using the CFD code, where several boiling models were tested. There were several user defined constants in those models which were tuned to preserve both quantitative and qualitative features of the experimental data obtained from JET at Culham, UK.…”

“…[6] can be divided into three parts/regimes as can be seen in Fig. 2, in the first regime where the slope of the curve is constant denotes single phase forced convection flow.…”

“…In this paper the same tool is used as used in the previous work [5,6] where a comparison was made with two boiling models, namely Rohsenow model and Transition Model. It was concluded at the end of the paper that Transition boiling model applied to HV is very promising, both quantitatively and qualitatively in preserving the features of the experimental data.…”

“…For conducting the CFD analysis a commercial CFD code STAR-CCM+ was used which was validated before for HV under subcooled boiling conditions for different HV configurations [5,6]. In the first part of the paper a general description will be given about the geometry considered and the flow conditions.…”