Results 11 to 20 of about 3,988 (248)

Film cooling characteristics of squealer tip of a turbine blade

open access: yesXibei Gongye Daxue Xuebao
The high-speed and high-temperature gap leakage flow in the turbine blade tip clearance directly scours the tip of the rotor blade and generates a local high-temperature region, so the active and passive control of the gap leakage flow is very important.
WU Fangfang   +4 more
doaj   +2 more sources

Turbine Blade Tip External Cooling Technologies

open access: yesAerospace, 2018
This article provides an overview of gas turbine blade tip external cooling technologies. It is not the intention to comprehensively review all the publications from past to present.
Song Xue, Wing F. Ng
doaj   +2 more sources

An Attempt for Suppression of Wing-Tip Vortex Using Plasma Actuators

open access: yesJournal of Fluid Science and Technology, 2011
Influence of the flow induced by dielectric barrier discharge (DBD) plasma actuators on the wing-tip vortex is investigated numerically and experimentally.
Hitomi HASEBE   +2 more
doaj   +1 more source

Research on the Jet Characteristics and Dephosphorization Efficiency of Converter Oxygen Lance Blowing CO2-O2 Mixed Gas

open access: yesMetals, 2022
Utilization of CO2 in steelmaking process has attracted extensive attention in recent years, not only because of its social benefits, but also its better metallurgical performance.
Guoli Wei   +6 more
doaj   +1 more source

Effect of film-hole configuration on film-cooling effectiveness of squealer tips

open access: yesJournal of Thermal Science and Technology, 2017
Three-dimensional numerical simulations are carried out to investigate the effects of film-hole arrangement and blowing ratio on the squealer tip leakage flow field and tip film-cooling performance.
Fengna CHENG   +3 more
doaj   +1 more source

Numerical Investigations of Dynamic Stall Control [PDF]

open access: yesINCAS Bulletin, 2014
In this paper we investigated numerically the dynamic stall phenomenon and the possibilities to control it, with application to vertical axis wind turbines (for urban users).
Florin FRUNZULICA   +2 more
doaj   +1 more source

Blowing fallopian tubes in mud therapy. Improved blowing technique and new tip [PDF]

open access: yesKazan medical journal, 1929
Despite the introduction of the uterosalpingography method into the diagnosis of tubal patency and the improvement of the latter technique with the use of lipiodol and iodipine, the Rubin air test has not lost its significance. The value of pertubation, as a method that is less complicated and more accessible to a wide medical mass, is still preserved,
openaire   +1 more source

Plasma flow control of the tip vortices over a very low aspect-ratio wing

open access: yes, 2022
Flow control of the tip vortices over a very low aspect-ratio wing was carried out using the dielectric-barrier-discharge plasma actuators. The results indicate a large change in the aerodynamic forces by plasma flow control, where the lift coefficient ...
Yaxing Wang   +5 more
core   +2 more sources

Effect of rotation on film cooling with a single row of shaped holes on blade pressure side

open access: yesJournal of Thermal Science and Technology, 2017
A numerical investigation is performed to illustrate the mutual interaction between coolant jet issuing from shaped film cooling hole and cascade primary flow as well as the resulting film cooling performance under rotational condition. Four various film-
Xingdan ZHU   +3 more
doaj   +1 more source

Vortex Ring Theory—An Alternative to the Existing Actuator Disk and Rotating Annular Stream Tube Theories

open access: yesApplied Sciences, 2021
Currently, the actuator disk theory (ADT) and the rotating annular stream-tube theory (RAST), both of which predicate on the axial momentum and generalized momentum theories, among others, are commonly used in investigating the aerodynamic ...
James Agbormbai, Weidong Zhu, Liang Li
doaj   +1 more source

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