Secondary Instability Analysis of Crossflow on a Hypersonic Yawed Straight Circular Cone

Moyes, Alexander; Paredes, Pedro; Kocian, Travis S.; Reed, Helen L.

doi:10.2514/6.2016-0848

Cited by 13 publications

(21 citation statements)

References 14 publications

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“…Preliminary evidence (first reported in Reference [15]) suggested the secondary in-stabilities may be important [3,[15][16][17], but the existence of these instabilities and their parametric trends remained to be confirmed. Both further experiments and computations are needed.…”

Section: Crossflow Instabilitymentioning

confidence: 99%

“…[16] results in a different shape of the crossflow vortices in the spanwise and wall-normal plane [34].…”

Section: Secondary Instability Of High-speed Crossflow Wavesmentioning

confidence: 99%

“…Work is ongoing on a non-parallel PSE calculation of the secondary instabilities by Li et al, but was not available at the time of this writing. From [36], caption from [34]. Flow conditions can be found in [17].…”

Section: Secondary Instability Of High-speed Crossflow Wavesmentioning

confidence: 99%

“…From [36], caption from [34]. Flow conditions can be found in [17]. For details on the design and development of hypersonic quiet tunnels, including the BAM6QT, see Reference [38].…”

Section: Secondary Instability Of High-speed Crossflow Wavesmentioning

confidence: 99%

“…The x axis is a Reynolds number based on a characteristic length scale defined in [9]. [36], caption from [34]. Flow conditions can be found in [17] A sharp, circular 7…”

mentioning

confidence: 99%

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Secondary Instabilities of Hypersonic Stationary Crossflow Waves

Edelman

2018

AIAA Journal

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Section: Crossflow Instabilitymentioning

confidence: 99%

“…[16] results in a different shape of the crossflow vortices in the spanwise and wall-normal plane [34].…”

Section: Secondary Instability Of High-speed Crossflow Wavesmentioning

confidence: 99%

Section: Secondary Instability Of High-speed Crossflow Wavesmentioning

confidence: 99%

“…From [36], caption from [34]. Flow conditions can be found in [17]. For details on the design and development of hypersonic quiet tunnels, including the BAM6QT, see Reference [38].…”

Section: Secondary Instability Of High-speed Crossflow Wavesmentioning

confidence: 99%

“…The x axis is a Reynolds number based on a characteristic length scale defined in [9]. [36], caption from [34]. Flow conditions can be found in [17] A sharp, circular 7…”

mentioning

confidence: 99%

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Secondary Instabilities of Hypersonic Stationary Crossflow Waves

Edelman

2018

AIAA Journal

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Evolution of high-frequency instabilities in the presence of azimuthally compact crossflow vortex pattern over a yawed cone

Choudhari

Paredes

et al. 2022

Theor. Comput. Fluid Dyn.

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The secondary instabilities of stationary cross-flow vortices in a Mach 6 swept wing flow

Chen

Liu

et al. 2019

J. Fluid Mech.

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The secondary instabilities of stationary cross-flow vortices in a Mach 6 swept wing flow are studied using Floquet theory. High-frequency secondary instability modes of ‘y’ mode on top of stationary cross-flow vortices, and ‘z’ mode concentrating on the shoulder of the stationary cross-flow vortex are found. The most unstable secondary instability mode is always the ‘z’ mode as in incompressible swept wing flows. A new secondary instability mode concentrating on the trough of the stationary cross-flow vortex is found. The balance analysis of disturbance kinetic energy shows that the new mode belongs to the class of ‘y’ mode. The growth rate of the new ‘y’ mode located on the trough of the stationary cross-flow vortex is significantly larger than that of the ‘y’ mode on top of the stationary cross-flow vortex, and is comparable with the growth rate of the ‘z’ mode. It is also found that the new ‘y’ mode with higher frequency can evolve into the ‘z’ mode further downstream. The role of the pressure fluctuation term, including the pressure diffusion and pressure dilatation, in the energy production of secondary instability modes, is also investigated. It is shown that the pressure diffusion will only enhance the growth rate of the ‘z’ mode with higher frequency, but has little influence on other types of secondary instability mode. However, the pressure dilatation term arising from non-vanishing velocity divergence will reduce the growth rates of all secondary instability modes.

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Secondary Instability Analysis of Crossflow on a Hypersonic Yawed Straight Circular Cone

Cited by 13 publications

References 14 publications

Secondary Instabilities of Hypersonic Stationary Crossflow Waves

Secondary Instabilities of Hypersonic Stationary Crossflow Waves

Evolution of high-frequency instabilities in the presence of azimuthally compact crossflow vortex pattern over a yawed cone

The secondary instabilities of stationary cross-flow vortices in a Mach 6 swept wing flow

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