DNS of turbulent flat-plate flow with transpiration cooling

Christopher, Nicholas; Peter, Johannes M. F.; Kloker, Markus J.; Hickey, Jean-Pierre

doi:10.1016/j.ijheatmasstransfer.2020.119972

Cited by 42 publications

(13 citation statements)

References 23 publications

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“…Hence, the wall temperature of the oncoming boundary-layer needs to be incorporated for any comprehensive scaling formula used for designing the film cooling. Results of comparisons of tangential to wall-normal helium blowing can be found in [15,16].…”

Section: Supersonic Film Coolingmentioning

confidence: 99%

Collaborative Research for Future Space Transportation Systems

Haidn

Adams

Radespiel

et al. 2020

Notes on Numerical Fluid Mechanics and Multidisciplinary Design

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This chapter book summarizes the major achievements of the five topical focus areas, Structural Cooling, Aft-Body Flows, Combustion Chamber, Thrust Nozzle, and Thrust-Chamber Assembly of the Collaborative Research Center (Sonderforschungsbereich) Transregio 40. Obviously, only sample highlights of each of the more than twenty individual projects can be given here and thus the interested reader is invited to read their reports which again are only a summary of the entire achievements and much more information can be found in the referenced publications. The structural cooling focus area included results from experimental as well as numerical research on transpiration cooling of thrust chamber structures as well as film cooling supersonic nozzles. The topics of the aft-body flow group reached from studies of classical flow separation to interaction of rocket plumes with nozzle structures for sub-, trans-, and supersonic conditions both experimentally and numerically. Combustion instabilities, boundary layer heat transfer, injection, mixing and combustion under real gas conditions and in particular the investigation of the impact of trans-critical conditions on propellant jet disintegration and the behavior under trans-critical conditions were the subjects dealt with in the combustion chamber focus area. The thrust nozzle group worked on thermal barrier coatings and life prediction methods, investigated cooling channel flows and paid special attention to the clarification and description of fluid-structure-interaction phenomena I nozzle flows. The main emphasis of the focal area thrust-chamber assembly was combustion and heat transfer investigated in various model combustors, on dual-bell nozzle phenomena and on the definition and design of three demonstrations for which the individual projects have contributed according to their research field.

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Section: Supersonic Film Coolingmentioning

confidence: 99%

Collaborative Research for Future Space Transportation Systems

Haidn

Adams

Radespiel

et al. 2020

Notes on Numerical Fluid Mechanics and Multidisciplinary Design

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“…Some applications nowadays considered for transpiration cooling include scramjet combustion chambers [4], rocket thrust chambers [5], turbine blades [6] and others [1,7]. Even so it has been invented in the 1950's [8], due to both advances made in manufacturing and the need for greater cooling efficiency, recently transpiration cooling has come back into the focus of research and has been intensively studied experimentally, analytically and numerically [5,9,10,11,12,13,14].…”

Section: Introductionmentioning

confidence: 99%

“…Alternative detailed injection models are based on turbulence modeling, heuristic considerations, and DNS simulations. [21,22,14,23].…”

Section: Introductionmentioning

confidence: 99%

Probabilistic Constrained Bayesion Inversion for Transpiration Cooling

Steins¹,

Bui-Thanh²,

Herty³

et al. 2022

Preprint

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To enable safe operations in applications such as rocket combustion chambers, the materials require cooling to avoid material damage. Here, transpiration cooling is a promising cooling technique. Numerous studies investigate possibilities to simulate and evaluate the complex cooling mechanism. One naturally arising question is the amount of coolant required to ensure a safe operation. To study this, we introduce an approach that determines the posterior probability distribution of the Reynolds number using an inverse problem and constraining the maximum temperature of the system under parameter uncertainties. Mathematically, this chance inequality constraint is dealt with by a generalized Polynomial Chaos expansion of the system. The posterior distribution will be evaluated by different Markov Chain Monte Carlo based methods. A novel method for the constrained case is proposed and tested among others on two-dimensional transpiration cooling models.

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“…The DNS method [16,17] obtains turbulent flow in all time and space scales in the flow field by directly solving the Navier-Stokes equation. Although this method is the most accurate method for simulating turbulent flow in the flow field, it has extremely high requirements on computer performance.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Turbulence Model Influence on the Numerical Simulation of Cavitating Flow with Emphasis on Temperature Effect

et al. 2020

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The aim of this paper is to investigate the influence of different turbulence models (k−ε, RNG k−ε, and SST k−ω) on the numerical simulation of cavitating flow in thermosensitive fluid. The filter-based model and density correction method were employed to correct the turbulent viscosity of the three turbulence models. Numerical results obtained were compared to experimental ones which were conducted on the NACA0015 hydrofoil at different temperatures. The applicability of the numerical solutions of different turbulence model was studied in detail. The modified RNG k−ε model has higher accuracy in the calculation of cavitating flow at different temperatures.

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DNS of turbulent flat-plate flow with transpiration cooling

Cited by 42 publications

References 23 publications

Collaborative Research for Future Space Transportation Systems

Collaborative Research for Future Space Transportation Systems

Probabilistic Constrained Bayesion Inversion for Transpiration Cooling

Evaluation of the Turbulence Model Influence on the Numerical Simulation of Cavitating Flow with Emphasis on Temperature Effect

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