Internal Film Cooling with Discrete-Slot Injection Orifices in Hydrogen/Oxygen Engine Thrust Chambers
نویسندگان
چکیده
In the present study, a hydrogen and oxygen heat-sink engine thrust chamber corresponding injection faceplate with discrete slot orifices are devised to study cooling performance near region. Moreover, set of experiments numerical simulations conducted evaluate effects various factors on combustion film efficiency. According obtained result, circumferential efficiency has an M-shaped distribution in near-injector Furthermore, it been discovered that when flow ratio increases, so does This is especially more pronounced range 30–80 mm from faceplate. The found be proportional rate ratio’s 0.4 power. Compared thickness, reduction width beneficial improving efficiency, advantage prominent for small ratios. addition, amount coolant not enough, effect orifice better than common cylindrical orifice. article demonstrates setting area adjacent effective way reduce uneven wall surface temperature.
منابع مشابه
Numerical Simulation of Cryogenic Injection in Rocket Engine Combustion Chambers
The numerical simulation of cryogenic combustion is crucial for a better understanding of the complex physics involved in reactive flows of rocket engines and to help to reduce the development cost of these engines. The focus of this study is set on the oxidizer injection and its dispersion through jet dense core destabilization and atomization or supercritical mixing. Specific models have been...
متن کاملExperimental Investigation into the Hydrodynamics Effects of Slot Film Cooling on a Cylindrical Model
An experimental study of hydrodynamics of film cooling is performed by using a single longitudinal slot on a cylindrical model simulated to the leading edge of the gas turbine blade. The model is set up into the test section of an open-circuit induced flow wind tunnel which provides the main flow. The injected air, as a secondary film flow, produced from a high pressure compressor is considered...
متن کاملSimulation of Film Cooling Enhancement with Mist Injection
Cooling of gas turbine hot section components such as combustor liners, combustor transition pieces, turbine vanes (nozzles) and blades (buckets) is a critical task for improving the life and reliability of hotsection components. Conventional cooling techniques using air-film cooling, impingement jet cooling, and turbulators have significantly contributed to cooling enhancements in the past. Ho...
متن کاملInternal Combustion Engine Cooling Strategies: Theory and Test
Advanced automotive thermal management systems integrate electro-mechanical components for improved fluid flow and thermodynamic control action. Progressively, the design of ground vehicle heating and cooling management systems require analytical and empirical models to establish a basis for real time control algorithms. One of the key elements in this computer controlled system is the smart th...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Energies
سال: 2022
ISSN: ['1996-1073']
DOI: https://doi.org/10.3390/en15093459