Modeling particle deposition in turbulent duct flows using Lagrangian approach

N. P. Gao; Q. B. He; Jianlei Niu; T. Zhu; J. Z. Wu

Modeling particle deposition in turbulent duct flows using Lagrangian approach

N. P. Gao
, Q. B. He
, Jianlei Niu
, T. Zhu
, J. Z. Wu

The Hong Kong Polytechnic University

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

Abstract

This paper studied the ability and accuracy of a commonly used Reynolds-averaged Navier-Stocks (RANS) turbulence model, i.e. RNG κ-ε model combined with a Lagrangian discrete random walk (DRW) model to predict particle deposition in vertical and horizontal turbulent duct flows. The performance of RNG κ-ε mode in its original form and with near-wall correction was tested. A new and simple correction measure to turbulence kinetic energy was proposed for RNG κ-ε model. It was found that RNG κ-ε model greatly over-predicts the deposition velocity in its original form. The near-wall modification proposed in this paper is able to improve the simulation results on deposition. With the near-wall correction measure, RNG κ-ε model can reflect the V-shape deposition of micro- and nanometer particles.

Original language	English
Title of host publication	7th International Symposium on Heating, Ventilating and Air Conditioning - Proceedings of ISHVAC 2011
Pages	547-552
Number of pages	6
Volume	2
Publication status	Published - 1 Dec 2011
Event	7th International Symposium on Heating, Ventilating and Air Conditioning, ISHVAC 2011 - Shanghai, China Duration: 6 Nov 2011 → 9 Nov 2011

Conference

Conference	7th International Symposium on Heating, Ventilating and Air Conditioning, ISHVAC 2011
Country/Territory	China
City	Shanghai
Period	6/11/11 → 9/11/11

Keywords

Lagrangian discrete random walk method
Near-wall correction
Particle deposition
RNG κ-ε mode

ASJC Scopus subject areas

Environmental Science (miscellaneous)

Cite this

@inproceedings{e07bfebb0de74af5a4f1b887b23b7f69,

title = "Modeling particle deposition in turbulent duct flows using Lagrangian approach",

abstract = "This paper studied the ability and accuracy of a commonly used Reynolds-averaged Navier-Stocks (RANS) turbulence model, i.e. RNG κ-ε model combined with a Lagrangian discrete random walk (DRW) model to predict particle deposition in vertical and horizontal turbulent duct flows. The performance of RNG κ-ε mode in its original form and with near-wall correction was tested. A new and simple correction measure to turbulence kinetic energy was proposed for RNG κ-ε model. It was found that RNG κ-ε model greatly over-predicts the deposition velocity in its original form. The near-wall modification proposed in this paper is able to improve the simulation results on deposition. With the near-wall correction measure, RNG κ-ε model can reflect the V-shape deposition of micro- and nanometer particles.",

keywords = "Lagrangian discrete random walk method, Near-wall correction, Particle deposition, RNG κ-ε mode",

author = "Gao, \{N. P.\} and He, \{Q. B.\} and Jianlei Niu and T. Zhu and Wu, \{J. Z.\}",

year = "2011",

month = dec,

day = "1",

language = "English",

isbn = "9789628513802",

volume = "2",

pages = "547--552",

booktitle = "7th International Symposium on Heating, Ventilating and Air Conditioning - Proceedings of ISHVAC 2011",

note = "7th International Symposium on Heating, Ventilating and Air Conditioning, ISHVAC 2011 ; Conference date: 06-11-2011 Through 09-11-2011",

}

Modeling particle deposition in turbulent duct flows using Lagrangian approach. / Gao, N. P.; He, Q. B.; Niu, Jianlei et al.
7th International Symposium on Heating, Ventilating and Air Conditioning - Proceedings of ISHVAC 2011. Vol. 2 2011. p. 547-552.

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

TY - GEN

T1 - Modeling particle deposition in turbulent duct flows using Lagrangian approach

AU - Gao, N. P.

AU - He, Q. B.

AU - Niu, Jianlei

AU - Zhu, T.

AU - Wu, J. Z.

PY - 2011/12/1

Y1 - 2011/12/1

N2 - This paper studied the ability and accuracy of a commonly used Reynolds-averaged Navier-Stocks (RANS) turbulence model, i.e. RNG κ-ε model combined with a Lagrangian discrete random walk (DRW) model to predict particle deposition in vertical and horizontal turbulent duct flows. The performance of RNG κ-ε mode in its original form and with near-wall correction was tested. A new and simple correction measure to turbulence kinetic energy was proposed for RNG κ-ε model. It was found that RNG κ-ε model greatly over-predicts the deposition velocity in its original form. The near-wall modification proposed in this paper is able to improve the simulation results on deposition. With the near-wall correction measure, RNG κ-ε model can reflect the V-shape deposition of micro- and nanometer particles.

AB - This paper studied the ability and accuracy of a commonly used Reynolds-averaged Navier-Stocks (RANS) turbulence model, i.e. RNG κ-ε model combined with a Lagrangian discrete random walk (DRW) model to predict particle deposition in vertical and horizontal turbulent duct flows. The performance of RNG κ-ε mode in its original form and with near-wall correction was tested. A new and simple correction measure to turbulence kinetic energy was proposed for RNG κ-ε model. It was found that RNG κ-ε model greatly over-predicts the deposition velocity in its original form. The near-wall modification proposed in this paper is able to improve the simulation results on deposition. With the near-wall correction measure, RNG κ-ε model can reflect the V-shape deposition of micro- and nanometer particles.

KW - Lagrangian discrete random walk method

KW - Near-wall correction

KW - Particle deposition

KW - RNG κ-ε mode

UR - https://www.scopus.com/pages/publications/84866280885

M3 - Conference article published in proceeding or book

SN - 9789628513802

VL - 2

SP - 547

EP - 552

BT - 7th International Symposium on Heating, Ventilating and Air Conditioning - Proceedings of ISHVAC 2011

T2 - 7th International Symposium on Heating, Ventilating and Air Conditioning, ISHVAC 2011

Y2 - 6 November 2011 through 9 November 2011

ER -

Modeling particle deposition in turbulent duct flows using Lagrangian approach

Abstract

Conference

Keywords

ASJC Scopus subject areas

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