Direct numerical simulation of ammonia Lagrangian sprays at different ambient temperatures.

Abstract

The recent transition to zero-carbon fuels imposes the scientific community to perform physics-based studies on the properties of new fuels. In particular, this study focuses on the spray dynamics of diluted ammonia spray jets. Direct numerical simulations are performed in the OpenFOAM framework at different pre-heating conditions and qualitatively compared. In particular, the differences in terms of penetration length and jet width are analyzed and related to the relatively low saturation temperature of ammonia at ambient pressure.