Results 121 to 130 of about 324,471 (291)

Computational study of plasma actuator on film cooling performance for different shaped holes

open access: yesAIP Advances, 2015
An investigation on film cooling holes with plasma actuators are performed for circular hole, expansion-shaped hole and fan-shaped hole on the surface of flat plate.
Sheng-ji Dai   +6 more
doaj   +1 more source

Evaluate the Cooling Effect of Cooling Garments: A Review

open access: yesJournal of Natural Fibers
Personal cooling garments have the advantages of being highly effective and economically practical, and are widely used in industry, medicine and aerospace. Personal cooling garments exhibit different cooling efficiencies and thermal comfort in different environments due to their different cooling medium characteristics. Air-cooling garments and liquid-
Tian-Hong He   +4 more
openaire   +2 more sources

Population of Nonmetallic Inclusions in Liquid High‐Silicon Electrical Steel in Contact With MgO–C Refractories Based on Recyclates and Environmentally Friendly Binders

open access: yesAdvanced Engineering Materials, EarlyView.
The formation of nonmetallic inclusions (NMIs) was investigated in this study, carrying out immersion tests for 30 min at a temperature of 1600°C with liquid high‐silicon electrical steel (Si ≈ 3 mass‐%) and different MgO–C refractories. Conventional MgO–C refractories were considered, as well as MgO–C refractories containing MgO–C recyclate and ...
Lukas Neubert   +6 more
wiley   +1 more source

Vortex-generating coolant-flow-passage design for increased film-cooling effectiveness and surface coverage [PDF]

open access: yes
The thermal film-cooling footprints observed by infrared imagery for three coolant-passage configurations embedded in adiabatic-test plates are discussed.
Papell, S. S.
core   +1 more source

Engineering Deformation and Failure in Diamond Triply Periodic Minimal Surface Lattices via 3D Wall‐Thickness Grading

open access: yesAdvanced Engineering Materials, EarlyView.
The work demonstrates that strategic wall‐thickness grading in diamond triply periodic minimal surface lattices enables precise tuning of deformation and failure behavior under compression. Different gradation patterns guide how and where the structure collapses, improving energy absorption or promoting controlled brittle failure.
Giovanni Rizza   +3 more
wiley   +1 more source

Assessment of the NASA code FDNS2D for computation of film cooling effectiveness [PDF]

open access: yes
The role of computational fluid dynamics (CFD) programs is usually one of analysis. Generally they are not used in the design phase of a project. There was an effort to integrate CFD codes into the design phase of combustion devices, specifically, in the
Woodbury, Keith A.
core   +1 more source

Experimental and simulation study on the effect of geometrical and flow parameters for combined-hole film cooling [PDF]

open access: yes, 2016
Film cooling method was applied to the turbine blades to provide thermal protection from high turbine inlet temperatures in modern gas turbines. Recent literature discovers that combining two cylindrical holes of film cooling is one of the ways to ...
Hassan, Haswira
core  

Removing Homocoupling Defects in Alkoxy/Alkyl‐PBTTT Enhances Polymer:Fullerene Co‐Crystal Formation and Stability

open access: yesAdvanced Functional Materials, EarlyView.
PBTTT‐OR‐R, a C14‐alkoxy/alkyl‐PBTTT polymer derivative, is of substantial interest for optoelectronics due to its specific fullerene intercalation behavior and enhanced charge‐transfer absorption. Comparing this polymer with (S) and without (O) homocoupling defects reveals that PBTTT‐OR‐R(O) forms stable co‐crystals with PC61BM, while PBTTT‐OR‐R(S ...
Zhen Liu   +14 more
wiley   +1 more source

Film-cooling effectiveness with developing coolant flow through straight and curved tubular passages [PDF]

open access: yes
The data were obtained with an apparatus designed to determine the influence of tubular coolant passage curvature on film-cooling performance while simulating the developing flow entrance conditions more representative of cooled turbine blade.
Graham, R. W.   +2 more
core   +1 more source

Numerical investigation of rectangular twisted hole on film cooling for gas turbine blades [PDF]

open access: yes, 2014
This paper investigates a new method of film cooling using swirling coolant flow through a rectangular twisted film cooling holes with spirally corrugated tube. Two different air flows with different in temperatures were used in this study.
Fakhir, Ammar   +3 more
core  

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