Temperature and pressure measurements at cold exit of counter-flow vortex tube with flow visualization of reversed flow View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2015-02

AUTHORS

Mohd Hazwan bin Yusof, Hiroshi Katanoda, Hiromitsu Morita

ABSTRACT

In order to clarify the structure of the cold flow discharged from the counter-flow vortex tube (VT), the temperature and pressure of the cold flow were measured, and the existence and behavior of the reversed flow at the cold exit was studied using a simple flow visualization technique consisting of a 0.75mm-diameter needle, and an oil paint droplet. It is observed through this experiment that the Pitot pressure at the cold exit center can either be lower or higher than atmospheric pressure, depending on the inlet pressure and the cold fraction, and that a reversed flow is observed when the Pitot pressure at the cold exit center is lower than atmospheric pressure. In addition, it is observed that when reducing the cold fraction from unity at any arbitrary inlet pressure, the region of reversed and colder flow in the central part of cold exit extends in the downstream direction. More... »

PAGES

67-72

References to SciGraph publications

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s11630-015-0757-3

DOI

http://dx.doi.org/10.1007/s11630-015-0757-3

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1050510888


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