Thermal Analysis of Fluid-Structural Interaction in High-Speed Engine Flow Fields

Kurzfassung

The impetus toward development of a hydrogen-fueled scramjet engine to accelerate aerospace vehicles at hypersonic speeds has focused attention on the need to accurately model the fluid-thermal-structural interaction of such engines. The engine is exposed to a severe thermal load caused by strong aerodynamic heating and high combustion temperatures. In addition, the hydrogen fuel is commonly used as engine coolant prior to injection, thus causing a strongly coupled thermal problem of combustion flow field, heat load, and cooling requirements. The presented method is able to solve coupled thermal problem of combustion flow field, heat load, and cooling requirements. The presented method is able to solve coupled thermal problems by computing high-speed turbulent and compressible flow fields including multidimensional heat conduction in adjacent walls. The code is tested and applied to a combustor, and test conditions are experimentally investigated within the framework of joint German-Russian cooperation on scramjet technology.