Journal
MICROMACHINES
Volume 13, Issue 11, Pages -Publisher
MDPI
DOI: 10.3390/mi13111819
Keywords
thermometry; gas microflow; microsystem; microfluidics; temperature; rarefaction
Categories
Funding
- European Community [215504]
- European Union [643095]
- ERDF A way of making Europe [PID2021-123752NB-I00]
- Spanish MCIN/AEI
Ask authors/readers for more resources
Thermometry techniques have been widely developed for analyzing thermal properties of fluid flows, but their application in analyzing gas flows at the microscale is not yet well developed. This review analyzes the current thermometry techniques adapted to microflows, with a focus on optical techniques and the challenges they face. Special attention is given to the potential and non-intrusiveness of Raman and molecular tagging thermometry techniques.
Thermometry techniques have been widely developed during the last decades to analyze thermal properties of various fluid flows. Following the increasing interest for microfluidic applications, most of these techniques have been adapted to the microscale and some new experimental approaches have emerged. In the last years, the need for a detailed experimental analysis of gaseous microflows has drastically grown due to a variety of exciting new applications. Unfortunately, thermometry is not yet well developed for analyzing gas flows at the microscale. Thus, the present review aims at analyzing the main currently available thermometry techniques adapted to microflows. Following a rapid presentation and classification of these techniques, the review is focused on optical techniques, which are the most suited for application at microscale. Their presentation is followed by a discussion about their applicability to gas microflows, especially in confined conditions, and the current challenges to be overcome are presented. A special place is dedicated to Raman and molecular tagging thermometry techniques due to their high potential and low intrusiveness.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available