Results 31 to 40 of about 4,477,602 (248)

Numerical study of optimum parameter design for film cooling effectiveness by Taguchi method

open access: yes, 2023
The present numerical study investigated a novel film cooling scheme that combines a cylindrical hole with an upstream Barchan-dune ramp and a triangular tab over the hole.
Ouyang, Kwan;Chen, Tseng-Yuan;Wu, Jun-You
core   +1 more source

Effects of Diffusion Film Hole Exit Area on the Film Cooling Effectiveness

open access: yesInternational Journal of Rotating Machinery, 2022
One popular method for the protection of gas turbines’ hot sections from high-temperature combustor gases is film cooling. Substantial amounts of research have been conducted to accomplish this task with the minimum cooling flow, maximum surface coverage,
Fan Yang, Mohammad E. Taslim
doaj   +1 more source

Effects of Mainstream Velocity and Turbulence Intensity on the Sweeping Jet and Film Composite Cooling

open access: yesMachines, 2023
The jet always sweeps to the leftmost and rightmost points in the sweeping jet and film composite cooling (SJF) process, resulting in a different coolant flow in each film hole. The film can not easily cover the outer surface evenly under the scouring of
Xiangcan Kong   +5 more
doaj   +1 more source

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

open access: yesFEBS Letters, EarlyView.
Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui   +4 more
wiley   +1 more source

Experimental measurement of overall effectiveness and internal coolant temperatures for a film cooled gas turbine airfoil with internal impingement cooling [PDF]

open access: yes, 2013
textA scaled-up gas turbine vane model was constructed in such a way to achieve a Biot number (Bi) representative of an actual engine component, and experiments were performed to collect temperature data which may be used to validate computational fluid ...
Williams, Randall Paul
core  

New Techniques for Measuring Film Cooling Effectiveness

open access: yes, 1975
Techniques to measure local film effectiveness distributions on large-scale models of turbine blade and vane sections were developed for use in subsonic, room-temperature wind-tunnel environments.
R. D. Lander, M. F. Blair
core   +1 more source

Near-Field Simulations of Film Cooling with a Modified DES Model

open access: yesInventions, 2020
Modeling the heat transfer characteristics of highly turbulent flow in gas turbine film cooling is important for providing better insights and engineering solutions to the film cooling problem. This study proposes a modified detached eddy simulation (DES)
Feiyan Yu, Savas Yavuzkurt
doaj   +1 more source

Extracellular vesicle lipidomics liquid biopsy reveals systemic and tumor microenvironment metabolic reprogramming in ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Extracellular vesicle (EV) lipidomic profiling of plasma and ascites from patients with high‐grade serous ovarian cancer and of ovarian cancer cell lines reveals enrichment of triglycerides (TGs), diacylglycerols (DGs), phosphatidylcholine (PCs), sphingomyelins (SMs), reflecting tumor metabolic reprogramming.
Shikha Rani   +9 more
wiley   +1 more source

Experimental investigation of film cooling and thermal barrier coatings on a gas turbine vane with conjugate heat transfer effects [PDF]

open access: yes, 2013
textIn the United States, natural gas turbine generators account for approximately 7% of the total primary energy consumed. A one percent increase in gas turbine efficiency could result in savings of approximately 30 million dollars for operators and ...
Kistenmacher, David Alan
core  

Blowing Ratio Effects on Film Cooling Effectiveness [PDF]

open access: yes, 2010
The research focuses on testing the film cooling effectiveness on a gas turbine blade suction side surface. The test is performed on a five bladed cascade with a blow down facility. Four different blowing ratios are used in this study, which are 0.5, 1.0,
Liu, Kuo-Chun
core   +3 more sources

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