Airflow characteristics under planar opposed ventilation jets in a controlled indoor environment

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Standard

Airflow characteristics under planar opposed ventilation jets in a controlled indoor environment. / Lestinen, Sami; Wesseling, Mark; Kosonen, Risto; Koskela, Hannu; Müller, Dirk.

Clima 2019 Congress, Bucharest, Romania May 26-29, 2019: E3S Web of Conferences 111, 01029 (2019). ed. / S. I. Tanabe; H. Zhang; J. Kurnitski; M. C. Gameiro da Silva; I. Nastase; P. Wargocki; G. Cao; L. Mazzarela; C. Inard. EDP SCIENCES, 2019. 01029 (E3S web of conferences; Vol. 111).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Harvard

Lestinen, S, Wesseling, M, Kosonen, R, Koskela, H & Müller, D 2019, Airflow characteristics under planar opposed ventilation jets in a controlled indoor environment. in SI Tanabe, H Zhang, J Kurnitski, MC Gameiro da Silva, I Nastase, P Wargocki, G Cao, L Mazzarela & C Inard (eds), Clima 2019 Congress, Bucharest, Romania May 26-29, 2019: E3S Web of Conferences 111, 01029 (2019)., 01029, E3S web of conferences, vol. 111, EDP SCIENCES, REHVA World Congress, Bucharest, Romania, 26/05/2019. https://doi.org/10.1051/e3sconf/201911101029

APA

Lestinen, S., Wesseling, M., Kosonen, R., Koskela, H., & Müller, D. (2019). Airflow characteristics under planar opposed ventilation jets in a controlled indoor environment. In S. I. Tanabe, H. Zhang, J. Kurnitski, M. C. Gameiro da Silva, I. Nastase, P. Wargocki, G. Cao, L. Mazzarela, ... C. Inard (Eds.), Clima 2019 Congress, Bucharest, Romania May 26-29, 2019: E3S Web of Conferences 111, 01029 (2019) [01029] (E3S web of conferences; Vol. 111). EDP SCIENCES. https://doi.org/10.1051/e3sconf/201911101029

Vancouver

Lestinen S, Wesseling M, Kosonen R, Koskela H, Müller D. Airflow characteristics under planar opposed ventilation jets in a controlled indoor environment. In Tanabe SI, Zhang H, Kurnitski J, Gameiro da Silva MC, Nastase I, Wargocki P, Cao G, Mazzarela L, Inard C, editors, Clima 2019 Congress, Bucharest, Romania May 26-29, 2019: E3S Web of Conferences 111, 01029 (2019). EDP SCIENCES. 2019. 01029. (E3S web of conferences). https://doi.org/10.1051/e3sconf/201911101029

Author

Lestinen, Sami ; Wesseling, Mark ; Kosonen, Risto ; Koskela, Hannu ; Müller, Dirk. / Airflow characteristics under planar opposed ventilation jets in a controlled indoor environment. Clima 2019 Congress, Bucharest, Romania May 26-29, 2019: E3S Web of Conferences 111, 01029 (2019). editor / S. I. Tanabe ; H. Zhang ; J. Kurnitski ; M. C. Gameiro da Silva ; I. Nastase ; P. Wargocki ; G. Cao ; L. Mazzarela ; C. Inard. EDP SCIENCES, 2019. (E3S web of conferences).

Bibtex - Download

@inproceedings{4287a54b36ab4669bbc6cb3ec42860a4,
title = "Airflow characteristics under planar opposed ventilation jets in a controlled indoor environment",
abstract = "Healthy, comfortable and intelligent indoor environment is a key objective in comprehensive well-being. This is also a main target of advanced HVAC-technology. In indoor environments, air distribution plays a major role while providing clean air to occupants. Therefore, investigating ventilation jets is an essential matter. In this study, the main objective was to improve knowledge on numerical modeling and airflow characteristics. In addition, the reliability of modeling methods were investigated. The experiments were carried out in a test room by using omnidirectional anemometers. The planar air jets were supplied below the ceiling from the opposite long-side walls. The exhaust openings were correspondingly near the floor. Isothermal and incompressible viscous airflow was simulated by using RANS, URANS, DES (SST-k-ω - LES) and SBES (SST-k-ω - LES) methods. The results show that modeling method has considerable effects on the predicted airflow field. However, the study indicates that correctly implemented numerical modeling may predict well the averaged airflow characteristics. Furthermore, the unsteady simulation allows airflows to fluctuate reasonably. In addition, SBES and DES methods were more sensitive in generating the airflow fluctuations than URANS. A recommendation is to carefully test and choose a modeling method for indoor airflows.",
keywords = "airflow characteristics, airflow interaction, turbulence modeling, URANS, DES, SBES, indoor airflows, Indoor environment",
author = "Sami Lestinen and Mark Wesseling and Risto Kosonen and Hannu Koskela and Dirk M{\"u}ller",
year = "2019",
month = "8",
day = "13",
doi = "10.1051/e3sconf/201911101029",
language = "English",
series = "E3S web of conferences",
publisher = "EDP SCIENCES",
editor = "Tanabe, {S. I. } and H. Zhang and J. Kurnitski and {Gameiro da Silva}, {M. C.} and I. Nastase and P. Wargocki and G. Cao and L. Mazzarela and C. Inard",
booktitle = "Clima 2019 Congress, Bucharest, Romania May 26-29, 2019",
address = "France",

}

RIS - Download

TY - GEN

T1 - Airflow characteristics under planar opposed ventilation jets in a controlled indoor environment

AU - Lestinen, Sami

AU - Wesseling, Mark

AU - Kosonen, Risto

AU - Koskela, Hannu

AU - Müller, Dirk

PY - 2019/8/13

Y1 - 2019/8/13

N2 - Healthy, comfortable and intelligent indoor environment is a key objective in comprehensive well-being. This is also a main target of advanced HVAC-technology. In indoor environments, air distribution plays a major role while providing clean air to occupants. Therefore, investigating ventilation jets is an essential matter. In this study, the main objective was to improve knowledge on numerical modeling and airflow characteristics. In addition, the reliability of modeling methods were investigated. The experiments were carried out in a test room by using omnidirectional anemometers. The planar air jets were supplied below the ceiling from the opposite long-side walls. The exhaust openings were correspondingly near the floor. Isothermal and incompressible viscous airflow was simulated by using RANS, URANS, DES (SST-k-ω - LES) and SBES (SST-k-ω - LES) methods. The results show that modeling method has considerable effects on the predicted airflow field. However, the study indicates that correctly implemented numerical modeling may predict well the averaged airflow characteristics. Furthermore, the unsteady simulation allows airflows to fluctuate reasonably. In addition, SBES and DES methods were more sensitive in generating the airflow fluctuations than URANS. A recommendation is to carefully test and choose a modeling method for indoor airflows.

AB - Healthy, comfortable and intelligent indoor environment is a key objective in comprehensive well-being. This is also a main target of advanced HVAC-technology. In indoor environments, air distribution plays a major role while providing clean air to occupants. Therefore, investigating ventilation jets is an essential matter. In this study, the main objective was to improve knowledge on numerical modeling and airflow characteristics. In addition, the reliability of modeling methods were investigated. The experiments were carried out in a test room by using omnidirectional anemometers. The planar air jets were supplied below the ceiling from the opposite long-side walls. The exhaust openings were correspondingly near the floor. Isothermal and incompressible viscous airflow was simulated by using RANS, URANS, DES (SST-k-ω - LES) and SBES (SST-k-ω - LES) methods. The results show that modeling method has considerable effects on the predicted airflow field. However, the study indicates that correctly implemented numerical modeling may predict well the averaged airflow characteristics. Furthermore, the unsteady simulation allows airflows to fluctuate reasonably. In addition, SBES and DES methods were more sensitive in generating the airflow fluctuations than URANS. A recommendation is to carefully test and choose a modeling method for indoor airflows.

KW - airflow characteristics

KW - airflow interaction

KW - turbulence modeling

KW - URANS

KW - DES

KW - SBES

KW - indoor airflows

KW - Indoor environment

U2 - 10.1051/e3sconf/201911101029

DO - 10.1051/e3sconf/201911101029

M3 - Conference contribution

T3 - E3S web of conferences

BT - Clima 2019 Congress, Bucharest, Romania May 26-29, 2019

A2 - Tanabe, S. I.

A2 - Zhang, H.

A2 - Kurnitski, J.

A2 - Gameiro da Silva, M. C.

A2 - Nastase, I.

A2 - Wargocki, P.

A2 - Cao, G.

A2 - Mazzarela, L.

A2 - Inard, C.

PB - EDP SCIENCES

ER -

ID: 35037512