Liquid Crystal Thermography and Image Processing in Heat and Fluid Flow Experiments

  • Conference paper
Flow Visualization VI

Summary

This paper describes new methods which can determine quantitatively two-dimensional temperature distributions on a surface and in a fluid from colour records obtained using a thermosensitive liquid crystal material combined with image processing. Application-type experiments have been carried out both to visualise the complex temperature distribution over a cooled surface disturbed by different solid obstacles, and also to investigate temperature and flow patterns in a rectangular cavity for natural convection.

On leave of absence from Technical University of Gdansk, Poland.

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Subscribe and save

Springer+ Basic
EUR 32.99 /Month
  • Get 10 units per month
  • Download Article/Chapter or Ebook
  • 1 Unit = 1 Article or 1 Chapter
  • Cancel anytime
Subscribe now

Buy Now

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 84.99
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD 109.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free ship** worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Similar content being viewed by others

References

  1. Akino, N.; Kunugi, T.; Ichimiya, K.; Mitsushiro, K.; Ueda, M.: Improved liquid-crystal thermometry excluding human color sensation. J. Heat Transfer, 111, (1989) 558–565.

    Article  Google Scholar 

  2. Akino, N.; Kunugi, T.; Shiina, Y.; Ichimiya, K.; Kurosawa, A: Fundamental study on visualization of temperature fields using thermosensitive liquid-crystals. Flow Visualization V. (ed. R. Reznicek), Washington: Hemisphere (1990) 87–92.

    Google Scholar 

  3. Ashforth-Frost, S.; Wang, L. S.; Jambunathan, K.; Graham, D. P.; Rhine, J. M.: Application of image processing to liquid crystal thermography. Procs. Optical Methods and Data Processing in Heat and Fluid Flow, City University, London (1992) 121–126.

    Google Scholar 

  4. Bonnett, P.; Jones, T. V.; McDonnell, D. G.: Shear-stress measurement in aerodynamic testing using cholesteric liquid crystals. Liquid Crystal, 6, (1989) 271–280.

    Article  Google Scholar 

  5. Baughn, J. W.; Ireland, P. T.; Jones, T. V.; Saniei, N.: A comparison of the transient and heated-coating methods for the measurements of local heat transfer coefficients on a pin fin. J. Heat Transfer, 111, (1989) 877–881.

    Article  Google Scholar 

  6. Hiller, W. J.; Kowalewski, T. A.: Simultaneous measurement of temperature and velocity fields in thermal convective flows. Flow Visualization IV (ed. C. Veret), Washington: Hemisphere (1986) 617–622.

    Google Scholar 

  7. Jones, T. V.; Wang, Z.; Ireland, P. T.: The use of liquid crystals in aerodynamic and heat transfer experiments. Procs. Optical Methods and Data Processing in Heat and Fluid Flow, City University, London, (1992) 51–65.

    Google Scholar 

  8. Moffatt, R. J.: Experimental heat transfer. Procs. 9th Intl. Heat Transfer Conf., Jerusalem, Vol. 1, (1991) 308–310.

    Google Scholar 

  9. Parsley, M.: The use of thermochromic crystals in heat transfer and flow visualisation. Research. FLUCOME’88, Sheffield University, England, (1988) 216–220.

    Google Scholar 

  10. Reinitzer, F.: Beiträge zur Kenntniss des Cholestrins, Monatschr. Chem. Wein, 9, (1888) 50–90.

    Google Scholar 

  11. Stasiek, J.; Collins, M. W.; Chew, P. E.: Liquid crystal map** of local heat transfer in crossed-corrugated geometrical elements for air heat exchangers. EUROTECH DIRECT’ 91 Congress, Birmingham, England, (1991). Paper C413/040.

    Google Scholar 

  12. Stasiek, J.; Collins, M. W.: Internal Reports, City University, London, (1989-92).

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 1992 Springer-Verlag Berlin Heidelberg

About this paper

Cite this paper

Stasiek, J., Collins, M.W. (1992). Liquid Crystal Thermography and Image Processing in Heat and Fluid Flow Experiments. In: Tanida, Y., Miyashiro, H. (eds) Flow Visualization VI. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-84824-7_77

Download citation

  • DOI: https://doi.org/10.1007/978-3-642-84824-7_77

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-84826-1

  • Online ISBN: 978-3-642-84824-7

  • eBook Packages: Springer Book Archive

Publish with us

Policies and ethics

Navigation