Computational Study of Mean Flow and Turbulence Structure in Inflow System of a Swirl Combustor

Saric, Sanjin; Jakirlić, Suad; Čavar, Dalibor; Kniesner, Björn; Altenhöfer, Paul; Tropea, Cameron

doi:10.1007/978-3-540-74460-3_57

Cited by 2 publications

(5 citation statements)

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“…The present simulation were undertaken using the Smagorinsky model as well as the new wavelet model. Figure 19 shows that the DSM simulation of [33] agrees well with the experimental data. The simulations performed in the present paper with the two SGS models considered produced virtually identical data.…”

Section: Flow In a Model Combustor With Swirlsupporting

confidence: 57%

“…Comparison of different numerical simulations with experiments at x = −0.04[m]. DSM and experimental data courtesy toŠarić and Jakirlić[33] …”

mentioning

confidence: 72%

“…The annular swirl combustor experimentally investigated at the Technical University of Darmstadt [27,33] was another testcase in the DFG-CNRS collaboration. In the following we focus on the burner geometry and compute the flow prior to the outlet into the combustion chamber, as it was done in [27].…”

Section: Flow In a Model Combustor With Swirlmentioning

confidence: 99%

“…This section had been selected for measurements in the experiments [27]. From the different simulations carried out in [33], the one with the Dynamic Smagorinsky model and a boundary condition set denoted as "simplified swirler" has been used here for comparison as it corresponds most closely to the present set of boundary conditions and computational domain. In the figures these results are denoted "DSM" and the corresponding experimental data from [33] have been used for comparison, too.…”

Section: Flow In a Model Combustor With Swirlmentioning

confidence: 99%

“…The reason for this behavior is the substantially lower level of fluctuations compared to the reference simulation and the experiment. This, in turn, may be due to the use of stationary inflow conditions (in [33] this issue is not discussed). Computations with different boundary conditions and numerical parameters are under way to elucidate this issue.…”

Section: Flow In a Model Combustor With Swirlmentioning

confidence: 99%

See 4 more Smart Citations

Numerical Simulation of Turbulent Flows in Complex Geometries Using the Coherent Vortex Simulation Approach Based on Orthonormal Wavelet Decomposition

Bockhorn¹,

Denev²,

Domingues³

et al.

Notes on Numerical Fluid Mechanics and Multidisciplinary Design

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Applications of the wavelet based coherent vortex extraction method are presented for homogeneous isotropic turbulence for different Reynolds numbers. We also summarize the developed adaptive multiresolution method for evolutionary PDEs. Then we show first fully adaptive computations of 3d mixing layers using Coherent Vortex Simulation. Features like local scale dependent time stepping are also illustrated and examples for one dimensional problems are given. Test cases on complex geometries like the periodic hill flow (with Reynolds numbers up to 37000) and an annular burner with a swirl number of S = 0.6 have been calculated based on the developed wavelet decomposition models. The extensive results presented show the robustness and good accuracy of the adopted wavelet approach for the various flows simulated.

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Section: Flow In a Model Combustor With Swirlsupporting

confidence: 57%

“…Comparison of different numerical simulations with experiments at x = −0.04[m]. DSM and experimental data courtesy toŠarić and Jakirlić[33] …”

mentioning

confidence: 72%