CFD simulation of straight and slightly swirling turbulent free jets using different RANS-turbulence models

Miltner, Martin; Jordan, Christian; Harasek, Michael

doi:10.1016/j.applthermaleng.2015.05.048

Cited by 60 publications

(24 citation statements)

References 15 publications

(19 reference statements)

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“…The selection of a proper turbulence model is of paramount importance to generate meaningful results. The work of Miltner et al [42] offers a detailed analysis of the flow field of a straight and a slightly rotating turbulent free jet both experimentally and through CFD simulations under various employed turbulence models. Experimental analysis is performed by Laser-Doppler-Anemometry to measure three-dimensional flow and turbulence fields.…”

Section: Models and Computational Techniques For Improved Design Solumentioning

confidence: 99%

“…Process models may vary in resolution, complexity, and rigour but when developed properly within a meaningful set of assumptions become the mean for an exhaustive investigation and evaluation of multiple process configurations and operating conditions. Two contributions in this field discuss the modelling of turbulent free jets [42] and of waste supply chains [43].…”

Section: Models and Computational Techniques For Improved Design Solumentioning

confidence: 99%

“…Obviously, computer aided process engineering methods and techniques offer the tool-kit for a speedy and effective design procedure. Four contributions investigate the enhancements that new equipment developments bring in fired heaters [37], heat exchangers [38] printed circuit heat exchangers [39], fluidised-bed evaporation [40], and multi-stream spiral-wound heat exchangers [42].…”

Section: High Performance Novel Thermal Equipment Designmentioning

confidence: 99%

See 2 more Smart Citations

Applied thermal engineering solutions through process integration, modelling and optimisation

Seferlis

Varbanov

2015

Applied Thermal Engineering

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Section: Models and Computational Techniques For Improved Design Solumentioning

confidence: 99%

Section: Models and Computational Techniques For Improved Design Solumentioning

confidence: 99%

Section: High Performance Novel Thermal Equipment Designmentioning

confidence: 99%

See 1 more Smart Citation

Applied thermal engineering solutions through process integration, modelling and optimisation

Seferlis

Varbanov

2015

Applied Thermal Engineering

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“…The accuracy and reliability of a CFD simulation is significantly depends on the model used. Miltner et al [21] and Ilbas et al [22] reported that no single turbulence model can be universally applied in all cases. Therefore, three RANS turbulence models, namely: SKE, RKE, and RNG, were compared in this work.…”

Section: Turbulence Modellingmentioning

confidence: 99%

A Computational Fluid Dynamics Study of Turbulence, Radiation, and Combustion Models for Natural Gas Combustion Burner

Pang

Law

Pung

et al. 2017

Bull. Chem. React. Eng. Catal.

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This paper presents a Computational Fluid Dynamics (CFD) study of a natural gas combustion burner focusing on the effect of combustion, thermal radiation and turbulence models on the temperature and chemical species concentration fields. The combustion was modelled using the finite rate/eddy dissipation (FR/EDM) and partially premixed flame models. Detailed chemistry kinetics CHEMKIN GRI-MECH 3.0 consisting of 325 reactions was employed to model the methane combustion. Discrete ordinates (DO) and spherical harmonics (P1) model were employed to predict the thermal radiation. The gas absorption coefficient dependence on the wavelength is resolved by the weighted-sum-of-gray-gases model (WSGGM). Turbulence flow was simulated using Reynolds-averaged Navier-Stokes (RANS) based models. The findings showed that a combination of partially premixed flame, P1 and standard k-ε (SKE) gave the most accurate prediction with an average deviation of around 7.8% of combustion temperature and 15.5% for reactant composition (methane and oxygen). The results show the multi-step chemistry in the partially premixed model is more accurate than the two-step FR/EDM. Meanwhile, inclusion of thermal radiation has a minor effect on the heat transfer and species concentration. SKE turbulence model yielded better prediction compared to the realizable k-ε (RKE) and renormalized k-ε (RNG). The CFD simulation presented in this work may serve as a useful tool to evaluate a performance of a natural gas combustor.

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“…However, in some other similar works, even very recent studies, concerning on the Computational Fluid Dynamics (CFD) investigation of a fluid flow, they have employed other turbulence model such as the RNG-k-ε [15], standard k-ε model [16], bybrid URANS-LES [17]. Figure 6.…”

Section: The Illustration Of Computationmentioning

confidence: 99%

The Study on Re Effect Correction for Laminar Wing with High Lift

Yao

Feng

et al. 2016

MATEC Web Conf.

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Abstract. In the past years, Reynolds number (Re) effect correction is carried out by varied Re experiment. The experiment can obtain double logarithm linear curve between the least drag and Re, and the least drag in flying Re is got by linear exploration. However, Re effect exerts a great influence on transition position for laminar wing with high lift. Therefore, the lift, drag and longitudinal moment can't be acquired by traditional Re effect correction. In this paper, the transition prediction simulations for laminar wing high lift are carried to obtain unconstrained transition position in different Re by adopting γ-Reθ transition prediction model. An agreement with experiment for transition position is achieved. According to the result of transition perdition and unconstrained transition test, Re effect correction in different height for the data of wind tunnel test is done. This method makes up for the traditional method, which Re effect correction for battle-plane is done for only drag. In present paper, Re effect correction for the lift, drag and longitudinal moment is done to acquire more accurate experimental data to ensure everything in flight.

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CFD simulation of straight and slightly swirling turbulent free jets using different RANS-turbulence models

Cited by 60 publications

References 15 publications

Applied thermal engineering solutions through process integration, modelling and optimisation

Applied thermal engineering solutions through process integration, modelling and optimisation

A Computational Fluid Dynamics Study of Turbulence, Radiation, and Combustion Models for Natural Gas Combustion Burner

The Study on Re Effect Correction for Laminar Wing with High Lift

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