Experimental and numerical investigation on thermal fluid–structure interaction on ceramic plates in high enthalpy flow

Willems, Sebastian; Esser, Burkard; Gülhan, Ali

doi:10.1007/s12567-015-0101-5

Cited by 9 publications

(2 citation statements)

References 8 publications

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“…Within SFB TRR 40, experiments with focus on thermal FSI in high enthalpy conditions were conducted by [60,61]. They established a data base on structural heating for several generic rigid C/C-SiC geometries.…”

Section: High Temperature Fsimentioning

confidence: 99%

Experiments on Aerothermal Supersonic Fluid-Structure Interaction

Daub

Willems

Esser

et al. 2020

Notes on Numerical Fluid Mechanics and Multidisciplinary Design

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Mastering aerothermal fluid-structure interaction (FSI) is crucial for the efficient and reliable design of future (reusable) launch vehicles. However, capabilities in this area are still quite limited. To address this issue, a multidisciplinary experimental and numerical study of such problems was conducted within SFB TRR 40. Our work during the last funding period was focused on studying the effects of moderate and high thermal loads. This paper provides an overview of our experiments on FSI including structural dynamics and thermal effects for configurations in two different flow regimes. The first setup was designed to study the combined effects of thermal and pressure loads. We investigated a range of conditions including shock-wave/boundary-layer interaction (SWBLI) with various incident shock angles leading to, in some cases, large flow separation with high amplitude temperature dependent panel oscillations. The respective aerothermal loads were studied in detail using a rigid reference panel. The second setup allowed us to study the effects of severe heating leading to plastic deformation of the structure. We obtained severe localized heating resulting in partly plastic deformations of more than 12 times the panel thickness. Furthermore, the effects of repeated load cycles were studied.

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Section: High Temperature Fsimentioning

confidence: 99%

Experiments on Aerothermal Supersonic Fluid-Structure Interaction

Daub

Willems

Esser

et al. 2020

Notes on Numerical Fluid Mechanics and Multidisciplinary Design

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“…A thermoviscoplastic analysis of cooled structures in hypersonic flow was conducted by [27]. Experimental validation of numerical FSI in hypersonic flow was investigated by [17,30,31]. In the latter papers, only thermal aspects in the structural investigation were taken into account.…”

Section: Introductionmentioning

confidence: 99%

Numerical Modelling of Fluid-Structure Interaction for Thermal Buckling in Hypersonic Flow

Martin

Daub

Esser

et al. 2020

Notes on Numerical Fluid Mechanics and Multidisciplinary Design

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Experiments have shown that a high-enthalpy flow field might lead under certain mechanical constraints to buckling effects and plastic deformation. The panel buckling into the flow changes the flow field causing locally increased heating which in turn affects the panel deformation. The temperature increase due to aerothermal heating in the hypersonic flow causes the metallic panel to buckle into the flow. To investigate these phenomena numerically, a thermomechanical simulation of a fluid-structure interaction (FSI) model for thermal buckling is presented. The FSI simulation is set up in a staggered scheme and split into a thermal solid, a mechanical solid and a fluid computation. The structural solver Abaqus and the fluid solver TAU from the German Aerospace Center (DLR) are coupled within the FSI code ifls developed at the Institute of Aircraft Design and Lightweight Structures (IFL) at TU Braunschweig. The FSI setup focuses on the choice of an equilibrium iteration method, the time integration and the data transfer between grids. To model the complex material behaviour of the structure, a viscoplastic material model with linear isotropic hardening and thermal expansion including material parameters, which are nonlinearly dependent on temperature, is used.

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