Investigation of cascade-type falling liquid-film along first wall of laser-fusion reactor

Kunugi, Tomoaki; Nakai, Toshiaki; Kawara, Zensaku; Norimatsu, T.; Kozaki, Y.

doi:10.1016/j.fusengdes.2008.06.034

Cited by 14 publications

(9 citation statements)

References 3 publications

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“…The flow visualization experiments and the numerical simulations in a previous POP study [3], we concluded that the cascade-type liquid-wall is feasible. In the present study, in order to obtain quantitative information of the liquid-film flow, measurements are taken of the liquid-film thickness formed on the solid wall surface by using a confocal laser scanning microscopy.…”

Section: Introductionmentioning

confidence: 64%

“…A vertical height (30 cm) and horizontal depth in each step of test section are the same as the actual reactor size, while the horizontal width (15 cm) of the test section is a quarter of an actual width same as that of the previous study [3]. Test section is made of acrylic resin plates (5 mm in thickness).…”

Section: Experimental Apparatus and Proceduresmentioning

confidence: 99%

“…Fig. 1 shows the schematic illustration of the cascade-type liquid-wall concept [3]. The cascade-type liquid-wall has a multistage structure.…”

Section: Introductionmentioning

confidence: 99%

“…Fig. 3 shows a schematic of experimental loop for simulated cascade-type liquid-wall, which was also used for previous work [3]. The working fluid is tap water at room temperature.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of liquid-film formation along first wall of laser-fusion reactor

Kawara

Yamamoto

Kunugi

et al. 2010

Fusion Engineering and Design

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Section: Introductionmentioning

confidence: 64%

Section: Experimental Apparatus and Proceduresmentioning

confidence: 99%

“…Fig. 1 shows the schematic illustration of the cascade-type liquid-wall concept [3]. The cascade-type liquid-wall has a multistage structure.…”

Section: Introductionmentioning

confidence: 99%

“…Fig. 3 shows a schematic of experimental loop for simulated cascade-type liquid-wall, which was also used for previous work [3]. The working fluid is tap water at room temperature.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Investigation of liquid-film formation along first wall of laser-fusion reactor

Kawara

Yamamoto

Kunugi

et al. 2010

Fusion Engineering and Design

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“…This study attempts to measure the contact angles formed between the molten PbLi to the various SiC walls, in order to develop a molten PbLi contact angle database. In addition to the contribution to the MCF blanket research, it is also helpful for the ICF blanket research, since the ICF blanket also adopts the PbLi film flow along the SiC first wall [3,4]. The PbLi contact angle database is necessary for the numerical studies of the behavior of molten PbLi film flow.…”

Section: Introductionmentioning

confidence: 99%

Contact angle measurement of molten lead–lithium on silicon carbide surfaces

Ueki

Nagai

Kunugi

et al. 2011

Fusion Engineering and Design

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a b s t r a c tMeasurements of the contact angles at the different temperatures of a molten lead-lithium eutectic alloy (PbLi) droplet on a silicon carbide (SiC) wall are needed for the research and development both of a magnetic confinement fusion (MCF) and an inertia confinement fusion (ICF) blankets. PbLi coolant/breeder flows in the coolant channel, which is made of the SiC walls, and will experience a flow slip at the wall, called as a magnetohydrodynamic (MHD) slip flow. The ICF blanket adopts a molten PbLi film flow along the first wall made of SiC. The PbLi contact angle database is necessary as the thermal property for numerically predicting the behavior of the flowing molten PbLi film. This study attempts the measurement of the contact angles between the molten PbLi and the various SiC surfaces. For example, in order to examine the initial PbLi wettability, we measured the contact angles of a chemical vapor deposition (CVD) SiC, a nano-infiltration and transient eutectic-phase (NITE) SiC/SiC composites, and a NITE SiC in an inert atmosphere. We obtained the contact angle database of the molten PbLi, varying the temperature of PbLi from 250 to 400 • C, on a surface-polished as well as an unpolished SiC.

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