[All] UKFN bulletin, w/e 22/6/18

UK Fluids Network info at fluids.ac.uk
Fri Jun 22 18:16:11 BST 2018


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FROM: Nick Daish, 22/6/18
SUBJECT: UKFN and GDPR (General Data Protection Regulation) 

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FROM: Paul Linden, University of Cambridge, 20/6/18
SUBJECT: PDRA, Department of Engineering, University of Cambridge 

Title: 'High resolution vehicle emissions modelling'
Deadline: 20 July 2018  


FROM: David Hann, Faculty of Engineering, University of Nottingham,
SUBJECT: Help with dyes 

'We are looking for some fluorescent dyes that can dissolve in several
different types of oils. With all the members here it is possible
someone out there has solved this problem already. If you have
experience of this and can help please contact me at
David.Hann at nottingham.ac.uk 

The specifications are as follows. 

 	* The fluorescent dye needs to fully dissolve in the working liquids
(ideally without the use of solvents). Our working liquids will be
AeroShell Turbine Oil 390, Eastman 2197 oil and silicon oil.
 	* The dye's maximum absorption wavelength should be close to the
working wavelength of the lasers that we have available (532nm and
450nm, with preference to the 532nm laser).
 	* The dye should be thermally stable (i.e. its fluorescence should be
independent of temperature - worst scenario possible consists on
temperatures ranging from 30-130°C ).
 	* The intensity of light recorded upon excitation of the dye needs to
be proportional (ideally linearly) to the range of film thicknesses that
are to be measured (around 0-4mm).

If point (3) is not fulfilled, there might be a way to compensate for
the dependence of fluorescence with temperature.'
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