Flow visualization around rib molded cuboid in narrow squared duct

Abstract

Recent stationary battery containers have cuboid battery modules with a forced air convection cooling system. A resin case of battery module is molded with a lot of ribs. The flow around battery module is modeled as a cuboid with textured surfaces by ribs in a narrow rectangular duct. Previous similar researches for cuboid with a rectangular duct are assumed for wide gaps between cuboid and duct walls. To design the forced air convection cooling system, heat transfer coefficients around a battery module and flow have to be evaluated. The paper proposes a flow visualization method to investigate flow around a cuboid with textured surfaces in a narrow rectangular duct utilized in a digital camera for consumer use and high intensity slit LED (Light Emitting Device.)