@article{oai:nifs-repository.repo.nii.ac.jp:00000445, author = {HAMAGUCHI, Shinji and YANAGI, Nagato and SATOW, Takashi and OKAMURA, Tetsuji and OKAMURA, Tetsuji and HAMAGUCHI, Shinji and YANAGI, Nagato and SATow, Takash}, journal = {Journal of Plasma and Fusion Research SERIES, Journal of Plasma and Fusion Research SERIES}, month = {Jan}, note = {Heat transport characteristics in a pressurized He II channel have been studied, using two- dimensional numerical code that is based on the two fluid model. In general, He II heat transport performance gets worse in a either long or narrow channel [1]. If a porous medium is used as a part of the channel to transfer heat to a next channel, it will be expected to improve the heat transport in the channel. In this study, numerical model was based on the channel formed by two FRP plates in parallel and a spacer was inserted in the middle of the channel to divide into two regions. A heater was placed in one of FRP plate to input heat to the channel. Two kinds of spacers were used in the analysis to compare heat transport characteristics; (l) porous spacer, (2) FRP spacer. The temperature distribution and flow velocity vectors of He II in the channel were calculated with a steady state heat input. According to the calculated results, the temperature increase of He II in the heated channel was suppressed in the case of a porous spacer. In addition, the mass flow induced by the thermo-mechanical effect of He II enhanced heat transport capability. The paper also discusses the He II flows within the channel.}, title = {Numerical Analysis on the He II Heat Transport in Channels with a Porous Spacer}, volume = {Vol.5}, year = {2002} }