Influence of non-uniform injection into a transpiration-cooled turbulent channel flow: A numerical study

König, Valentina; Rom, Michael; Müller, Siegfried

doi:10.2514/6.2018-0504

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Cited by 2 publications

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“…We would like to emphasize that originally in [5] the injection velocity (6) was prescribed to simulate non-uniform injection. For a better control of a specific mass flow rate the parameterō representing a local fraction or a percentage of a given mass flow was introduced in [16]. There it was incorporated in the coupling conditions for the porous medium.…”

Section: Coupling Conditionsmentioning

confidence: 99%

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A Coupled Two-Domain Approach for Transpiration Cooling

König

Rom

Müller

2020

Notes on Numerical Fluid Mechanics and Multidisciplinary Design

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Transpiration cooling is an innovative cooling concept where a coolant is injected through a porous ceramic matrix composite (CMC) material into a hot gas flow. This setting is modeled by a two-domain approach coupling two models for the hot gas domain and the porous medium to each other by coupling conditions imposed at the interface. For this purpose, appropriate coupling conditions, in particular accounting for local mass injection, are developed. To verify the feasibility of the two-domain approach numerical simulations in 3D are performed for two different application scenarios: a subsonic thrust chamber and a supersonic nozzle.

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Section: Coupling Conditionsmentioning

confidence: 99%

“…For an initial guess p 0 R,num we use either experimental data or an approximation determined by the Darcy-Forchheimer equation [16].…”

Section: Algorithmmentioning

confidence: 99%