Performance evaluation with turbulent flow and heat transfer characteristics in rectangular cooling channels with various novel hierarchical rib schemes
SF Zheng, GQ Liu, Y Zhang, HC Wang, SR Gao… - International Journal of …, 2023 - Elsevier
Turbulators, such as ribs, dimples, and pin-fins, play a vital role in the internal cooling
efficiency of turbine blades. As a typical turbulator, various rib configurations using a uniform …
efficiency of turbine blades. As a typical turbulator, various rib configurations using a uniform …
An inverse optimization of turbulent flow and heat transfer for a cooling passage with hierarchically arranged ribs in turbine blades
SF Zheng, WK Lian, JX Meng, HC Wang… - International Journal of …, 2024 - Elsevier
Owing to the limited cold-air amount and pressure in supply systems, high-efficient heat
transfer with low-level friction loss is highly desired for cooling units of a turbine blade. To …
transfer with low-level friction loss is highly desired for cooling units of a turbine blade. To …
Fluid flow and heat transfer in a rectangular ribbed channel with a hierarchical design for turbine blade internal cooling
SF Zheng, GQ Liu, WK Lian, YR Yang, SR Gao… - Applied Thermal …, 2022 - Elsevier
For internal cooling of a turbine blade, various advanced rib turbulators can markedly
contribute to the heat transfer enhancement while suffering a great increase in pressure …
contribute to the heat transfer enhancement while suffering a great increase in pressure …
Conjugate heat transfer analysis of internally cooled superalloy turbine blades with grooved channels
The present work reports a conjugate heat transfer analysis of a turbine blade exposed to
high-temperature compressible gas flow and the convection cooling inside the blade. A …
high-temperature compressible gas flow and the convection cooling inside the blade. A …
Numerical investigation of heat transfer characteristics of pin-fins with roughed endwalls in gas turbine blade internal cooling channels
In modern jet engines, the effective cooling structure design is essential to both increase
turbine efficiency and, in the meantime, maintain structural integrality. Pin-fin arrays play a …
turbine efficiency and, in the meantime, maintain structural integrality. Pin-fin arrays play a …
Numerical analysis for film cooling characteristics of trenched hole under the effects of rib-disturbed feed flow and curved surface
Film holes are extensively utilized to protect the blade external surface by ejecting coolant,
forming a protective film, and separating the hot gas and blade surface. Trenched holes …
forming a protective film, and separating the hot gas and blade surface. Trenched holes …
[HTML][HTML] Development and loss mechanism of turbine secondary flows at a low Reynolds number: A synergy analysis
To further explore the development of turbine secondary flows and associated losses at a
low Reynolds number, a synergy analysis was developed and implemented. Loss is defined …
low Reynolds number, a synergy analysis was developed and implemented. Loss is defined …
Numerical investigation of the flows and heat transfer characteristics of internal cooling channels with separated ribs in gas turbine blades
Gas turbine engines play a crucial role in numerous industrial domains, including power
generation, aviation, and marine propulsion. One of the major challenges in designing gas …
generation, aviation, and marine propulsion. One of the major challenges in designing gas …
Experimental and numerical research on film cooling characteristics on the compound angle hole
L Li, C Liu, Z Xu, HR Zhu, F Zhang - Physics of Fluids, 2022 - pubs.aip.org
Experimental research was conducted for studying the effect of blowing ratio (M) as well as
cross-flow Reynolds number (Re c) on distribution characteristics in film cooling …
cross-flow Reynolds number (Re c) on distribution characteristics in film cooling …
Effect of wall curvature on heat transfer and hydrodynamics in a ribbed cooling passage
SF Zheng, WK Lian, JX Meng, YR Yang, SR Gao… - International Journal of …, 2024 - Elsevier
Simplified rectangular ribbed cooling passages with a flat wall are extensively considered in
exploring the internal cooling features of turbine blades, but the realistic blade has a twisted …
exploring the internal cooling features of turbine blades, but the realistic blade has a twisted …