Comparison of flow and dispersion properties of free and wall turbulent jets for source dynamics characterisation

被引：7
|
作者：
Aloysius, S. S. [1 ]
Wrobel, L. C. [1 ]
机构：
[1] Brunel Univ, Sch Engn & Design, Uxbridge UB8 3PH, Middx, England
来源：
ENVIRONMENTAL MODELLING & SOFTWARE | 2009年 / 24卷 / 08期
关键词：
Buoyant jets; Large eddy simulation; Computational fluid dynamics; Source dynamics; Pollutant dispersion; Buoyancy effects; Ground effects; Airplane take-off; ALAQS; NOx; NUMERICAL-SIMULATION; LIFT;
D O I：
10.1016/j.envsoft.2008.12.007
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
The objective of this paper is to provide an investigation, using large eddy simulations, into the dispersion of aircraft jets in co-flowing take-off conditions. Before carrying out such study, simple turbulent plane free and wall jet simulations are carried out to validate the computational models and to assess the impact of the presence of the solid boundary on the flow and dispersion properties. The current study represents a step towards a better understanding of the source dynamics behind an airplane jet engine during the take-off and landing phases. The information provided from these simulations can be used for future improvements of existing dispersion models. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：926 / 937
页数：12
相关论文
共 28 条
  • [21] Flow dynamics and wall-pressure signatures in a high-Reynolds-number overexpanded nozzle with free shock separation
    Martelli, E.
    Saccoccio, L.
    Ciottoli, P. P.
    Tinney, C. E.
    Baars, W. J.
    Bernardini, M.
    JOURNAL OF FLUID MECHANICS, 2020, 895
  • [22] Computational Fluid Dynamics Study of Molten Steel Flow Patterns and Particle–Wall Interactions Inside a Slide-Gate Nozzle by a Hybrid Turbulent Model
    Mahdi Mohammadi-Ghaleni
    Mohsen Asle Zaeem
    Jeffrey D. Smith
    Ronald O’Malley
    Metallurgical and Materials Transactions B, 2016, 47 : 3056 - 3065
  • [23] Computational Fluid Dynamics Study of Molten Steel Flow Patterns and Particle-Wall Interactions Inside a Slide-Gate Nozzle by a Hybrid Turbulent Model
    Mohammadi-Ghaleni, Mahdi
    Zaeem, Mohsen Asle
    Smith, Jeffrey D.
    O'Malley, Ronald
    METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 2016, 47 (05): : 3056 - 3065
  • [24] Inter-phase interaction in a turbulent, vertical channel flow laden with heavy particles. Part I: Numerical methods and particle dispersion properties
    Wang, Bing
    INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2010, 53 (11-12) : 2506 - 2521
  • [25] Pollutant dispersion in a large indoor space. Part 2: Computational fluid dynamics predictions and comparison with a scale model experiment for isothermal flow
    Finlayson, EU
    Gadgil, AJ
    Thatcher, TL
    Sextro, RG
    INDOOR AIR, 2004, 14 (04) : 272 - 283
  • [26] Turbulent forced convection flow of water-based nanofluids with temperature-dependent properties over backward-facing step channel with upwardly deflected downstream wall
    Jourabian, Mahmoud
    Raeesi, Mehrdad
    NUMERICAL HEAT TRANSFER PART A-APPLICATIONS, 2025, 86 (07) : 2125 - 2154
  • [27] A comparison of 4D flow MRI-derived wall shear stress with computational fluid dynamics methods for intracranial aneurysms and carotid bifurcations - A review
    Szajer, Jeremy
    Ho-Shon, Kevin
    MAGNETIC RESONANCE IMAGING, 2018, 48 : 62 - 69
  • [28] Phase-Contrast Magnetic Resonance Imaging Measurements in Intracranial Aneurysms In Vivo of Flow Patterns, Velocity Fields, and Wall Shear Stress: Comparison with Computational Fluid Dynamics
    Boussel, Loic
    Rayz, Vitaliy
    Martin, Alastair
    Acevedo-Bolton, Gabriel
    Lawton, Michael T.
    Higashida, Randall
    Smith, Wade S.
    Young, William L.
    Saloner, David
    MAGNETIC RESONANCE IN MEDICINE, 2009, 61 (02) : 409 - 417
123