Numerical computations of hypersonic boundary layer roughness induced transition on a flat plate

Serino, Gennaro; Pinna, Fabio; Rambaud, Patrick; Magin, Thierry

doi:10.2514/6.2012-568

Cited by 4 publications

(2 citation statements)

References 7 publications

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“…Also, the Reynolds-averaged Navier-Stokes simulations using the suitable transition models [23,24] are acceptable to predict the mean transition phenomena.…”

Section: Introductionmentioning

confidence: 99%

Direct numerical simulation of hypersonic transition induced by an isolated cylindrical roughness element

Duan

Xiao

2014

Sci. China Phys. Mech. Astron.

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Hypersonic boundary layer transition induced by an isolated cylindrical roughness element is investigated using direct numerical simulation method based on a finite volume formulation. To simulate the transition procedure by resolving the generation and evolvement of small-scale coherent structures, and capture the shock wave at the same time, high-order minimum dispersion and controllable dissipation scheme is validated and then applied. The results are compared with the available measurements in the quiet wind tunnel, such as the dominated frequency and root mean square of pressure. The computational dominated frequency of 19.23 kHz is very close to the experimental one, 21 kHz. Also, the disturbances of the roughness are mostly generated by the "jet" just before the roughness, and then they travel and develop downstream with the shear layer and vortex shedding. The transition is mainly dominated by the instabilities of both the horseshoe vortex and the shear layer. hypersonic, boundarry layer transtion, roughness PACS number(s): 47.27.Cn, 47.27.ek, 47.40.Ki, 47.85.ld Citation:Duan Z W, Xiao Z X, Fu S. Direct numerical simulation of hypersonic transition induced by an isolated cylindrical roughness element.

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“…Also, the Reynolds-averaged Navier-Stokes simulations using the suitable transition models [23,24] are acceptable to predict the mean transition phenomena.…”

Section: Introductionmentioning

confidence: 99%

Direct numerical simulation of hypersonic transition induced by an isolated cylindrical roughness element

Duan

Xiao

2014

Sci. China Phys. Mech. Astron.

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“…Relevant parameters require tuning in order to match available experimental data. For example, Serino et al (2012b) applied a two-equation transition model in their computation based on the Reynolds-averaged Navier-Stokes equations and varied the freesteam turbulence level until the transition onset location matched the experimental one.…”

Section: Transition Modeling and Linear Stability Theorymentioning

confidence: 99%

Statistical inverse analysis and stochastic modeling of transition

Serino

Pinna

Marxen

et al. 2013

43rd Fluid Dynamics Conference

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A computational method is introduced to infer statistical information on boundarylayer perturbations upstream of laminar-turbulent transition in a supersonic boundary layer. The method uses the intermittency function as a basis, which specifies the amount of time a flow is turbulent at a given streamwise location. The methods yields a joint probability density function for amplitude and frequency of boundary-layer perturbations upstream of transition. It relies on linear stability theory to link the probability density function with the intermittency. In order to infer parameters governing the function, we perform a statistical inverse analysis using the Markov chain Monte Carlo method. The approach is applied to a synthetic test case and to experimental data.

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Simulation of Transitions Induced by Roughness Using Three-Equation Transition Model

Hua

2013

43rd Fluid Dynamics Conference

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Numerical computations of hypersonic boundary layer roughness induced transition on a flat plate

Cited by 4 publications

References 7 publications

Direct numerical simulation of hypersonic transition induced by an isolated cylindrical roughness element

Direct numerical simulation of hypersonic transition induced by an isolated cylindrical roughness element

Statistical inverse analysis and stochastic modeling of transition

Simulation of Transitions Induced by Roughness Using Three-Equation Transition Model

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