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A Proposed Calibration Procedure for the Simulation of Wind-Driven Rain in Small-Scale Wind Tunnel

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Abstract

The simulation of wind-driven rain in the wind tunnel should ensure a realistic representation of rainfall events in a laboratory environment. It necessitates therefore an understanding of how the governing input parameters of the tunnel relate to its outputs. In this perspective, a preliminary calibration should be carried out in order to grant the reproduction of a homogeneous volume of rainwater and a natural raindrop size distribution. A precise and straightforward procedure to be followed is missing. Based on experimental investigations, this study outlines a series of calibration steps that should be performed in the wind tunnel before the rain simulation takes place. It applies in particular to small scale facilities as opposed to the large wind tunnels designed for full-scale testing of building components and vehicles. Such procedure concentrates on the following aspects: wind speed calibration by vane anemometer; calibration of the sprinkler system and rain intensity measurements for assessing its spatial distribution. The main findings include the introduction of a governing function for the sprinkler system, a method for rain mapping as well as the individuation of an optimal set-up in the wind tunnel for rain simulation.

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References

  1. Flower JW, Lawson TV (1972) On the laboratory representation of rain impingement on buildings. Atmos Environ 6:55–60

    Article  Google Scholar 

  2. Rayment R, Hilton M (1977) The use of bubbles in a wind tunnel for flow-visualisation and the possible representation of raindrops. J Wind Eng Ind Aerodyn 2:149–157

    Article  Google Scholar 

  3. Aaron KM, Hernan M, Parikh P, Sarohia V (1986) Simulation and analysis of natural rain in a wind tunnel via digital image processing techniques. AIAA PAPER 86-0291, AlAA 24th aerospace sciences meeting January 6–9, Reno, Nevada, USA

  4. Surry D, Inculet DR, Skerlj PF, Lin J-X, Davenport AG (1994) Wind rain and the building envelope: a status report of ongoing research at the University of Western Ontario. J Wind Eng Ind Aerodyn 53:19–36

    Article  Google Scholar 

  5. Inculet D, Surry D (1994): Simulation of wind-driven rain and wetting patterns on buildings. BLWTLSS30-1994, Final report, Canada Mortgage and Housing Corporation,Ottawa Ontario

  6. Inculet DR (2001) The design of cladding against wind-driven rain. Ph.D. thesis, the University of Western Ontario, London, Canada

  7. Lopez C, Masters FJ, Bolton S (2011) Water penetration resistance of residential window and wall systems subjected to steady and unsteady wind loading. Build Environ 46:1329–1342

    Article  Google Scholar 

  8. Bitsuamlak GT, Chowdhury AG, Sambare D (2009) Application of a full-scale testing facility for assessing wind-driven-rain intrusion. Build Environ 44:2430–2441

    Article  Google Scholar 

  9. Knasiak, K., Schick, R. J., Kalata, W. (2007): Multiscale design of rain simulator. 20th Annual Conference on Liquid Atomization and Spray Systems, May 15–18, Chicago, IL, USA

  10. Blocken, B., Van Mook, F. J. R., Höberg, A. (1999): Full-scale driving rain simulation in the Jules Verne Climatic Wind Tunnel. Training and mobility of researchers, access to largescale facilities-access for researchers. Research Proposal. http://fabien.galerio.org/drivingrain/nantes/nantes.html. Accessed 10 July 2017

  11. Gandemer J (2001) Final report: large scale facilities, Jules Verne climatic wind tunnel. Contract ERB 4062PL970118

  12. Baheru T (2014) Development of test-based wind-driven rain intrusion model for hurricane-induced building interior and contents damage. FIU electronic theses and dissertations, paper 1127. https://digitalcommons.fiu.edu/etd/1127. Accessed 10 July 2017

  13. Blocken B, Abuku M, Roels S, Carmeliet J (2009) Wind-driven rain on building facades: some perspectives. EACWE 5, July 19–23, Florence, Italy

  14. Baheru T, Gan Chowdhury A, Bitsuamlak G, Masters FJ, Tokay A (2014) Simulation of wind-driven rain associated with tropical storms and hurricanes using the 12-fan wall of wind. Build Environ 76:18–29

    Article  Google Scholar 

  15. Testo.com (2013) VAC analysis measuring instrument testo 480- Cutting-edge technology for professionals. http://www.testolimited.com/testo-480-high-end-vac-measuring-instrument. Accessed 10 July 2017

  16. Spraying systems Co. (2017) Section B – full cone spray nozzles. http://www.spray.com/spray_nozzles/full_cone_fulljet_nozzles.aspx. Accessed 10 July 2017

  17. Fiedler-Magr (2017) TS-200, TS-314, TS-500 Varovné srážkomìrné stanice v síti GSM. https://www.fiedler.company/cs/produkty/snimace-cidla-senzory/destove-srazky/srazkomerne-stanice. Accessed 10 July 2017

  18. Thies (2011) Laser precipitation monitor-instruction for use. http://www.biral.com/product/laser-precipitation-monitor/. Accessed 10 July 2017

  19. Thies (2011) PC - Program LNM Vie w 9.1700.99.000 from version 2.5- Instruction for use. http://www.biral.com/product/laser-precipitation-monitor/. Accessed 10 July 2017

  20. Dingle AN, Lee Y (1972) Terminal fall speeds of raindrops. J Appl Meteorol 11:877–879

    Article  Google Scholar 

  21. Best AC (1950) The size distribution of raindrops. Q J R Meteorol Soc 76:16–36

    Article  Google Scholar 

  22. Lacy RE (1964) Driving rain at Garston, UK. CIB Bull 4:6–9

  23. Straube J (1998) Moisture control and enclosure control systems. Ph.D. thesis, the University of Waterloo, Waterloo

  24. Lora M, Camporese M, Salandin P (2016) Design and performance of a nozzle-type rainfall simulator for landslide triggering experiments. CATENA 140:77–89

    Article  Google Scholar 

  25. Carvalho CPS, de Lima JLMP, de Lima MIP (2014) Using meshes to change the characteristics of simulated rainfall produced by spray nozzles. Intern Soil Water Conserv Res 2:67–78

    Article  Google Scholar 

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Acknowledgements

This research was financially supported by the project TAČR EPSILON TH02010324 of the Technology Agency of the Czech Republic and CET sustainability project LO1219 (SaDeCET) of the Ministry of Education Youth and Sport of the Czech Republic.

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Authors and Affiliations

  1. Institute of Theoretical and Applied Mechanics of the Czech Academy of Sciences, Prosecká 809/76, 190 00, Praha 9, Czech Republic

    R. Cacciotti, S. Pospíšil, S. Kuznetsov & A. Trush

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  1. R. Cacciotti
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  2. S. Pospíšil
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  3. S. Kuznetsov
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  4. A. Trush
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Correspondence to R. Cacciotti.

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Cacciotti, R., Pospíšil, S., Kuznetsov, S. et al. A Proposed Calibration Procedure for the Simulation of Wind-Driven Rain in Small-Scale Wind Tunnel. Exp Tech 43, 369–384 (2019). https://doi.org/10.1007/s40799-018-0290-x

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  • DOI: https://doi.org/10.1007/s40799-018-0290-x

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