Abstract
KEYWORDS – spray-wall interaction, wall temperature, optical diagnostic, heat transfer, computational fluid dynamics
ABSTRACT
Present work reports an experimental and a numerical investigation of an iso-octane spray impinging on a flat surface. The spray behavior of a single-hole axially-disposed injector was studied in a constant volume vessel by varying the injection pressure and the wall temperature ranged between 5.0 - 20.0 MPa and room to 573 K, respectively. The spray impingement captured by Mie-scattering and Schlieren technique and the measured data were used to assess existing droplet-wall interaction models. The effects of injection pressure and wall temperature on spatial and temporal evolution of the liquid and vapor phase were analyzed via numerical simulation.