... comparison and scaling between situations at different conditions of temperature ratio. Email: james.cartlidge@eng.ox.ac.uk 1 Corresponding author. Email: thomas.povey@eng.ox.ac.uk 17 01 2023 11 08 2023 11 08 2023 31 10 2023 fluid dynamics and heat transfer phenomena...

...Hong Wang; Peilin He; Jialong Li; Huawei Lu Particle deposition is a common phenomenon in a turbine cascade. It can change the surface condition, which influences the flow and heat transfer. It is very important to accurately predict particle deposition and surface condition changes. In this study...

...Thomas D. Walker; Clare Bonham Knowledge of heat transfer in fuel wetted passages is important for informing injector design and life estimates due to the effects of temperature on fuel degradation. Future injectors will be manufactured using additive methods in an effort to reduce production costs...

... on the radial expansion of the compressor discs, which is directly coupled to conjugate heat transfer in co-rotating discs governed by unsteady and unstable buoyancy-induced flow. This paper discusses an experimental and modeling study using the Bath Compressor Cavity Rig, which simulates a generic axial...

.... Heat transfer was simulated by solving the passive scalar transport equation with Prandtl number Pr = 0.7. The roughness topographies under investigation here are based on an X-ray computed tomography scan of an additively manufactured internal cooling passage, which had an irregular, multiscale...

... into the lower section of the annulus led to a relatively high heat flux, coupled with a blockage effect on the natural draft in the upper section of the annulus inhibiting the convective heat transfer from this section. There appears to be a relationship between the porosity of the annulus and the peak top...

...Samuel Altland; Xiang I. A. Yang; Karen A. Thole; Robert Kunz; Stephen McClain Design for cooling effectiveness in turbine blades relies on accurate models for dynamic losses and heat transfer of internal cooling passages. Metal additive manufacturing (AM) has expanded the design space...

.... 1 Corresponding author. Email: ajw324@psu.edu Email: kthole@psu.edu 09 03 2023 28 05 2023 30 05 2023 26 06 2023 additive manufacturing heat transfer laser incidence angle wall thickness The additive manufacturing (AM) process, namely laser powder bed...

... distributions are the same in the three cases, the effective slope (ES) is very different, and the impact of this parameter on turbulence and heat transfer is analyzed at different Reynolds numbers. Email: serge.meynet@coria.fr Email: alexis.barge@doctorant.ec-lyon.fr 1 Corresponding author...

... heat transfer shaped hole adiabatic effectiveness and film cooling Glenn Research Center 10.13039/100006193 NNX14AE97H Gas turbines utilize film cooling on hot gas path components to increase life by lowering metal temperatures. Cylindrical film cooling holes are the most...

... for publication in the J ournal of T urbomachinery . 15 07 2021 07 09 2021 08 09 2021 27 05 2022 heat transfer effusion cooling combustion fluid dynamics and heat transfer phenomena in compressor and turbine components of gas turbine engines heat transfer and film cooling...

... presents Reynolds-averaged Navier–Stokes (RANS) conjugate heat transfer simulations that identify trends in cooling design performance as well as experimental measurements of overall effectiveness using a flat-plate matched-Biot number model with a simulated TBC layer of 0.42D thickness, where D...

... investigated operating conditions. However, the effusion cooling systems of aeroengine combustors are generally characterized by higher L / D values to better exploit the convective heat transfer within the holes and the related heat sink effect. Fig. 10 Parity plots for the prediction of velocity...

...Lorenzo Mazzei; Riccardo Da Soghe; Cosimo Bianchini It is well known from the literature that surface roughness significantly affects friction and heat transfer. This is even more evident for additive manufactured (AM) components, which are taking an increasingly important role in the gas turbine...

...Ce Liang; Yu Rao; Jianian Chen; Peng Zhang Experiments and numerical simulations under stationary and rotating conditions have been conducted to investigate turbulent flow and heat transfer characteristics of innovative guiding pin fin arrays in a wedge-shaped channel, which models the internal...

... experimental data, the numerical accuracy of VLES method was validated. With the VLES method, the unsteady heat transfer coefficient distributions on the squealer tip and total pressure loss in the blade passage were computed. The influences of coherent vortex structures on aero-thermal performance...

... system level. First-of-its-kind experimental results of spatially resolved tip heat transfer coefficient distribution at high relative casing Mach number are reported. The disk rotor rig design demonstrated in this paper can also be useful for other tip leakage flow studies. Figure 10 presents...

... and unique surface roughness. Previous work in scaled passages analyzed pressure losses and friction factors associated with the rough surfaces, as well as investigated the velocity profiles and turbulent flow characteristics within the passage. In this study, the heat transfer characteristics of scaled...

... and Applications , Cambridge University Press , New York . [2] Han , J.-C. , Dutta , S. , and Ekkad , S. , 2013 , Gas Turbine Heat Transfer and Cooling Technology , CRC Press , Boca Raton, FL . [3] Goldstein , R. J. , 1971 , Advances in Heat Transfer , J. Thomas , F...

..., contributing to thickening of tip boundary layer and the plummet of skin friction on tip surface, which is responsible for the sharp decline of tip Nusselt number and therefore, formation of low heat transfer stripe downstream cooling injection. Email: haiteng.ma@sjtu.edu.cn Email: 020020910172...