Experimental and numerical analysis of the hygrothermal response of walls to wind-driven rain

M. Abuku; B.J.E. Blocken; S. Roels

Experimental and numerical analysis of the hygrothermal response of walls to wind-driven rain

M. Abuku
, B.J.E. Blocken
, S. Roels

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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Abstract

To investigate the validity of the traditional approach to implement wind-driven rain (WDR) in hygrothermal building envelope models, under real atmospheric conditions, a new set-up was developed at a test building. Reference wind speed and direction, WDR intensity, outdoor air temperature and relative humidity and the resulting moisture response of the wall to these environmental conditions (both hygroscopic loading and WDR) were simultaneously measured. The whole measurement data set was used for validation. Large differences between the measurement and simulation results were found and possible causes discussed. It is concluded that many influencing parameters interact, and that therefore precisely predicting the hygrothermal response of walls to wind-driven rain is very difficult.

Original language	English
Title of host publication	Proceedings of the Building Physics Symposium in honour of Professor Hugo L.S.C. Hens, 29-31 October 2008, Leuven, Belgium
Editors	S. Roels, G. Vermeir, D. Saelens
Place of Publication	Leuven
Publisher	Katholieke Universiteit Leuven
Pages	211-214
ISBN (Print)	978-90-5682-991-9
Publication status	Published - 2008
Event	Building Physics Symposium in honour of Professor Hugo Hens, 29-31 October 2008, Leuven, Belgium - Duration: 29 Oct 2008 → 31 Oct 2008

Conference

Conference	Building Physics Symposium in honour of Professor Hugo Hens, 29-31 October 2008, Leuven, Belgium
Period	29/10/08 → 31/10/08

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Cite this

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title = "Experimental and numerical analysis of the hygrothermal response of walls to wind-driven rain",

abstract = "To investigate the validity of the traditional approach to implement wind-driven rain (WDR) in hygrothermal building envelope models, under real atmospheric conditions, a new set-up was developed at a test building. Reference wind speed and direction, WDR intensity, outdoor air temperature and relative humidity and the resulting moisture response of the wall to these environmental conditions (both hygroscopic loading and WDR) were simultaneously measured. The whole measurement data set was used for validation. Large differences between the measurement and simulation results were found and possible causes discussed. It is concluded that many influencing parameters interact, and that therefore precisely predicting the hygrothermal response of walls to wind-driven rain is very difficult.",

author = "M. Abuku and B.J.E. Blocken and S. Roels",

year = "2008",

language = "English",

isbn = "978-90-5682-991-9",

pages = "211--214",

editor = "S. Roels and G. Vermeir and D. Saelens",

booktitle = "Proceedings of the Building Physics Symposium in honour of Professor Hugo L.S.C. Hens, 29-31 October 2008, Leuven, Belgium",

publisher = "Katholieke Universiteit Leuven",

address = "Belgium",

note = "Building Physics Symposium in honour of Professor Hugo Hens, 29-31 October 2008, Leuven, Belgium ; Conference date: 29-10-2008 Through 31-10-2008",

}

Abuku, M, Blocken, BJE & Roels, S 2008, Experimental and numerical analysis of the hygrothermal response of walls to wind-driven rain. in S Roels, G Vermeir & D Saelens (eds), Proceedings of the Building Physics Symposium in honour of Professor Hugo L.S.C. Hens, 29-31 October 2008, Leuven, Belgium. Katholieke Universiteit Leuven, Leuven, pp. 211-214, Building Physics Symposium in honour of Professor Hugo Hens, 29-31 October 2008, Leuven, Belgium, 29/10/08.

Experimental and numerical analysis of the hygrothermal response of walls to wind-driven rain. / Abuku, M.; Blocken, B.J.E.; Roels, S.
Proceedings of the Building Physics Symposium in honour of Professor Hugo L.S.C. Hens, 29-31 October 2008, Leuven, Belgium. ed. / S. Roels; G. Vermeir; D. Saelens. Leuven: Katholieke Universiteit Leuven, 2008. p. 211-214.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

TY - GEN

T1 - Experimental and numerical analysis of the hygrothermal response of walls to wind-driven rain

AU - Abuku, M.

AU - Blocken, B.J.E.

AU - Roels, S.

PY - 2008

Y1 - 2008

N2 - To investigate the validity of the traditional approach to implement wind-driven rain (WDR) in hygrothermal building envelope models, under real atmospheric conditions, a new set-up was developed at a test building. Reference wind speed and direction, WDR intensity, outdoor air temperature and relative humidity and the resulting moisture response of the wall to these environmental conditions (both hygroscopic loading and WDR) were simultaneously measured. The whole measurement data set was used for validation. Large differences between the measurement and simulation results were found and possible causes discussed. It is concluded that many influencing parameters interact, and that therefore precisely predicting the hygrothermal response of walls to wind-driven rain is very difficult.

AB - To investigate the validity of the traditional approach to implement wind-driven rain (WDR) in hygrothermal building envelope models, under real atmospheric conditions, a new set-up was developed at a test building. Reference wind speed and direction, WDR intensity, outdoor air temperature and relative humidity and the resulting moisture response of the wall to these environmental conditions (both hygroscopic loading and WDR) were simultaneously measured. The whole measurement data set was used for validation. Large differences between the measurement and simulation results were found and possible causes discussed. It is concluded that many influencing parameters interact, and that therefore precisely predicting the hygrothermal response of walls to wind-driven rain is very difficult.

M3 - Conference contribution

SN - 978-90-5682-991-9

SP - 211

EP - 214

BT - Proceedings of the Building Physics Symposium in honour of Professor Hugo L.S.C. Hens, 29-31 October 2008, Leuven, Belgium

A2 - Roels, S.

A2 - Vermeir, G.

A2 - Saelens, D.

PB - Katholieke Universiteit Leuven

CY - Leuven

T2 - Building Physics Symposium in honour of Professor Hugo Hens, 29-31 October 2008, Leuven, Belgium

Y2 - 29 October 2008 through 31 October 2008

ER -

Experimental and numerical analysis of the hygrothermal response of walls to wind-driven rain

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