Supersonic Coaxial Jet Experiment for Computational Fluid Dynamics Code Validation

Cutler, Andrew D.; Diskin, G. S.; Drummond, J. P.; White, J. A.

doi:10.2514/1.5781

Cited by 26 publications

(30 citation statements)

References 17 publications

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“…A considerable amount of work to perform LES/RANS analyses has also been conducted with other codes [111][112][113][114][115][116][117][118][119][120][121][122][123][124][125][126][127][128][129]. An interesting LES/RANS simulation of a supersonic coaxial jet experiment [130,131] was performed using the VULCAN code [110]. The results are typical of other LES/ RANS simulations such as those cited in the preceding references.…”

Section: Hyper-x and A New Generation Of High-speed Reacting Flomentioning

confidence: 86%

“…Details of the formulation of the method and its application are given by Nik et al [153]. Using the SFMDF methodology, the LES of the coaxial nozzle assembly of Cutler et al [130] was carried out. A schematic of the coaxial nozzle assembly is shown in Fig.…”

Section: Les/filtered Density Function Methods For High-speed Reacmentioning

confidence: 99%

“…A small amount of oxygen was added to the helium to allow the streamwise component of velocity to be measured using the RELIEF technique [132]. Details concerning the geometry of the rig and the methodology used for its design and instrumentation can be found in [130]. The flow conditions for the two experiments are given in Tables 1 and 2.…”

Section: Hyper-x and A New Generation Of High-speed Reacting Flomentioning

confidence: 99%

See 2 more Smart Citations

Methods for Prediction of High-Speed Reacting Flows in Aerospace Propulsion

Drummond

2014

AIAA Journal

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Section: Hyper-x and A New Generation Of High-speed Reacting Flomentioning

confidence: 86%

Section: Les/filtered Density Function Methods For High-speed Reacmentioning

confidence: 99%

Section: Hyper-x and A New Generation Of High-speed Reacting Flomentioning

confidence: 99%

See 1 more Smart Citation

Methods for Prediction of High-Speed Reacting Flows in Aerospace Propulsion

Drummond

2014

AIAA Journal

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“…The thickness of the central nozzle at the flow outlet is 0.5 mm. This flow has been studied experimentally and numerically with RANS models [53,54]. LES of this flow on a Cartesian grid is also reported [31,55].…”

Section: Coaxial Helium-air Jetmentioning

confidence: 99%

Compressible Scalar Filtered Mass Density Function Model for High-Speed Turbulent Flows

Banaeizadeh

Jaberi

2011

AIAA Journal

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The scalar filtered mass density function model is further extended and employed for large-eddy simulations of high-speed turbulent mixing and reacting flows. The model is implemented through a hybrid mathematical/ computational methodology. In this methodology, the filtered compressible Navier-Stokes equations in a curvilinear coordinate system are solved with a generalized, high-order, multiblock, finite difference scheme for the turbulent velocity and pressure. However, the scalar mixing and combustion are computed with the compressible scalar filtered mass density function. The pressure effect in the energy equation, as needed in high-speed flows, is included in the filtered mass density function formulation. The new compressible large-eddy simulation/filtered mass density function model is used for the simulations of flows in a rapid compression machine, in a shock tube and in a supersonic coaxial jet. The numerical results indicate that the model is able to correctly capture the scalar mixing in compressible subsonic and supersonic turbulent flows.

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“…Further details concerning the geometry of the rig, and the methodology used for its design, can be found in Ref. 10. The nominal flow conditions for each experiment are given in Tables 1 and 2 along with the cited uncertainties. 10, 11 The thermocouples used to measure the jet temperatures were located in the gas supply lines, and the pressure taps used to measure the operating pressures were positioned as shown in Fig.…”

Section: Geometry Description and Flow Conditionsmentioning

confidence: 99%

Hybrid Reynolds-Averaged/Large-Eddy Simulations of a Co-Axial Supersonic Free-Jet Experiment

Baurle

Edwards

2009

47th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition

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Reynolds-averaged and hybrid Reynolds-averaged/large-eddy simulations have been applied to a supersonic coaxial jet flow experiment. The experiment utilized either helium or argon as the inner jet nozzle fluid, and the outer jet nozzle fluid consisted of laboratory air. The inner and outer nozzles were designed and operated to produce nearly pressure-matched Mach 1.8 flow conditions at the jet exit. The purpose of the computational effort was to assess the state-of-the-art for each modeling approach, and to use the hybrid Reynolds-averaged/large-eddy simulations to gather insight into the deficiencies of the Reynolds-averaged closure models. The Reynolds-averaged simulations displayed a strong sensitivity to choice of turbulent Schmidt number. The baseline value chosen for this parameter resulted in an over-prediction of the mixing layer spreading rate for the helium case, but the opposite trend was noted when argon was used as the injectant. A larger turbulent Schmidt number greatly improved the comparison of the results with measurements for the helium simulations, but variations in the Schmidt number did not improve the argon comparisons. The hybrid simulation results showed the same trends as the baseline Reynolds-averaged predictions. The primary reason conjectured for the discrepancy between the hybrid simulation results and the measurements centered around issues related to the transition from a Reynolds-averaged state to one with resolved turbulent content. Improvements to the inflow conditions are suggested as a remedy to this dilemma. Comparisons between resolved second-order turbulence statistics and their modeled Reynolds-averaged counterparts were also performed.

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Supersonic Coaxial Jet Experiment for Computational Fluid Dynamics Code Validation

Cited by 26 publications

References 17 publications

Methods for Prediction of High-Speed Reacting Flows in Aerospace Propulsion

Methods for Prediction of High-Speed Reacting Flows in Aerospace Propulsion

Compressible Scalar Filtered Mass Density Function Model for High-Speed Turbulent Flows

Hybrid Reynolds-Averaged/Large-Eddy Simulations of a Co-Axial Supersonic Free-Jet Experiment

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