Sammanfattning
Measuring temperature in complex two-phase flows is crucial for understanding the dynamics of heat and mass transfer. In this Letter, we introduce a novel, to the best of our knowledge, optical approach based on the combination of two-photon laser-induced fluorescence (2p-LIF) imaging and two-color laser-induced fluorescence (2CLIF) for instantaneous temperature mapping of complex liquid media. Using Kiton Red (KR) and Rhodamine 560 (R560), a temperature sensitivity of 1.54%/◦C has been achieved over a range of 17–60°C. The monitoring of two-dimensional transient temperature dynamics in the heating and degassing of water shows the efficiency of the 2p–2CLIF. This new approach contributes to the toolkit of optical temperature measurement techniques, providing a robust solution for studying transient scattering media and high-speed two-phase flows.
Originalspråk | engelska |
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Sidor (från-till) | 2569-2572 |
Antal sidor | 4 |
Tidskrift | Optics Letters |
Volym | 49 |
Nummer | 10 |
DOI | |
Status | Published - 2024 maj |
Ämnesklassifikation (UKÄ)
- Atom- och molekylfysik och optik