A coupled thermo-ablative and fluid dynamic analysis for numerical application to solid propellant rockets

Baiocco, Paola; Bellomi, P.

doi:10.2514/6.1996-1811

Cited by 4 publications

(4 citation statements)

References 1 publication

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“…The ablation process is simplified following the assumption used by Baiocco and Bellomi [11], namely the injection velocity (also called Stephan velocity) is assumed to be orthogonal to the receding surface (tangential components are set to zero). Hence, this new boundary condition prescribes the boundary values for the conservation equations (of mass, momentum, species and energy) to mimic the behavior of an ablated isothermal wall.…”

Section: Boundary Condition For Surface Ablationmentioning

confidence: 99%

“…The Hirschfleder and Curtiss approximation with correction velocity, equations (9,11,12), are then used to evaluate the normal diffusion flux of each species at the ablated wall:…”

Section: Boundary Condition For Surface Ablationmentioning

confidence: 99%

“…For these reasons, numerical simulations are widely used in the field of ablation investigation. Many studies have already proposed to couple numerically the gaseous phase and the solid structure [5,[8][9][10][11][12][13]. However, most of them are dedicated to the structural material characterization by predicting the recession rate or the surface temperature and few are oriented toward the fluid characterization.…”

Section: Introductionmentioning

confidence: 99%

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Direct numerical simulation of a reacting turbulent channel flow with thermochemical ablation

Cabrit

Nicoud

2010

Journal of Turbulence

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This study presents the results obtained by performing a set of direct numerical simulations (DNS) of periodic channel flows over an isothermal surface subjected to thermo-chemical ablation. A specific boundary condition to handle the surface ablation is developed and allows to represent any kind of ablation scheme. By nature, the periodic channel flow configuration is statically unsteady when ablation is present, which requires a particular attention when investigating flow statistics. An ensemble average over several flow realizations is then employed to generate converged statistics. Hence, this procedure allows to investigate different features of the flow when focussing on species/momentum/energy/atomic conservation. The analysis reveals that the flow can be considered at chemical equilibrium under the conditions investigated. Moreover, the convective effect introduced by the Stephan velocity at ablative surface appears to have no influence on momentum conservation whereas it strongly participates to the surface cooling effect. Finally, an atomic mass conservation equation of Shvab-Zel'dovich type is formulated, and highlights passive scalar like conservation mechanism of atomic elements.

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Section: Boundary Condition For Surface Ablationmentioning

confidence: 99%

“…The Hirschfleder and Curtiss approximation with correction velocity, equations (9,11,12), are then used to evaluate the normal diffusion flux of each species at the ablated wall:…”

Section: Boundary Condition For Surface Ablationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Direct numerical simulation of a reacting turbulent channel flow with thermochemical ablation

Cabrit

Nicoud

2010

Journal of Turbulence

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“…Many studies have already proposed to couple numerically the gaseous phase and the solid structure [3,4,5]. However, most of them are dedicated to the structural material characterization by predicting the recession rate or the surface temperature and few are dealing with the fluid characterization.…”

Section: Introductionmentioning

confidence: 99%

DNS of a Periodic Channel Flow with Isothermal Ablative Wall

Cabrit

Nicoud

2010

ERCOFTAC Series

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Conjugate Problems in Convective Heat Transfer: Review

Dorfman

Renner

2009

Mathematical Problems in Engineering

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A review of conjugate convective heat transfer problems solved during the early and current time of development of this modern approach is presented. The discussion is based on analytical solutions of selected typical relatively simple conjugate problems including steady-state and transient processes, thermal material treatment, and heat and mass transfer in drying. This brief survey is accompanied by the list of almost two hundred publications considering application of different more and less complex analytical and numerical conjugate models for simulating technology processes and industrial devices from aerospace systems to food production. The references are combined in the groups of works studying similar problems so that each of the groups corresponds to one of selected analytical solutions considered in detail. Such structure of review gives the reader the understanding of early and current situation in conjugate convective heat transfer modeling and makes possible to use the information presented as an introduction to this area on the one hand, and to find more complicated publications of interest on the other hand.

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A coupled thermo-ablative and fluid dynamic analysis for numerical application to solid propellant rockets

Cited by 4 publications

References 1 publication

Direct numerical simulation of a reacting turbulent channel flow with thermochemical ablation

Direct numerical simulation of a reacting turbulent channel flow with thermochemical ablation

DNS of a Periodic Channel Flow with Isothermal Ablative Wall

Conjugate Problems in Convective Heat Transfer: Review

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