期刊
EXPERIMENTAL THERMAL AND FLUID SCIENCE
卷 145, 期 -, 页码 -出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.expthermflusci.2023.110897
关键词
Drop train; Spray cooling; Drop impact; Heat transfer; Film boiling
This study focuses on the heat flux during the cooling process of a hot substrate using an impacting monodisperse drop train. The temperature inside the substrate is measured with high temporal and spatial resolution using thermocouples. Additionally, a new analytical model has been developed to describe and predict the transient cooling and temperature of a semi-infinite body by the impacting drop train, assuming a single point heat sink on the surface. The experimental data show good agreement with the theoretical predictions for various drop train frequencies.
The focus of this study is on the heat flux during cooling of a hot substrate by an impacting monodisperse drop train. Such a drop train is used for achieving high heat flux densities over small surfaces. The temperature inside the substrate is measured with high temporal and spatial resolution using thermocouples. Furthermore, a new analytical model has been developed to describe and predict the transient cooling and temperature of a semi-infinite body by the impacting drop train, assuming a single point heat sink on the surface. The experimental data agree very well with the theoretical predictions for various drop train frequencies.
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