Effect of Ocean Environment on Turbulent Heat Transfer in Lattices

The flowing and heat transfer characteristics of turbulent flow in channels with 7 and 4 fuel bundles in ocean environment is investigated theoretically.In the ocean environment,there is periodic heat accumulation on the channel wall due to the periodic velocity.The effect of rolling motion can be restricted greatly by the wall.In the channel with 7 fuel bundles,the effect of the additional force perpendicular to flowing direction on the flow is weak due to the restriction of the wall.The flowing and heat transfer characteristics is mainly determined by the axial turbulent intensity and inlet velocity.In the channel with 4 fuel bundles,since the restriction of the wall is limited,the effect of the additional force perpendicular to flowing direction on the flowing and heat transfer characteristics is significant.And the additional force perpendicular to flowing direction also has effect on the Reynolds stress.