|
|
|
|
|
Jungho Lee, Ingyu Lee, Seongphil Woo, Yeoungmin Han and Youngbin Yoon
The spray and combustion characteristics of a gas-centered swirl coaxial (GCSC) injector used in oxidizer-rich staged combustion cycle engines were analyzed. The study focused on varying the recess ratio, presence of gas swirl, and swirl direction to imp...
ver más
|
|
|
|
|
|
|
|
|
|
|
Wenjie Shen, Suofang Wang and Xiaodi Liang
Impellers are utilized to increase pressure to ensure that a radial pre-swirl system can provide sufficient cooling airflow to the turbine blades. In the open literature, the pressurization mechanism of the impellers was investigated. However, the effect...
ver más
|
|
|
|
|
|
|
|
|
|
|
Jian He, Xiang Luo, Yang Bai, An Song and Tao Yang
In aero-engines, a secondary air system is used to cool the rotor discs and seal cavities between rotor and stator parts. The pressure loss caused by bleed air can be effectively reduced by setting the finned vortex reducer. Thus, the bleed system design...
ver más
|
|
|
|
|
|
|
|
|
|
|
Seongphil Woo, Jungho Lee, Ingyu Lee, Seunghan Kim, Yeoungmin Han and Youngbin Yoon
The momentum flux ratio (MFR) significantly affects the mixing characteristics and combustion efficiency of propellants in rocket engine injectors. The spray characteristics of three gas-centered swirl-coaxial injectors used in a full-scale combustion te...
ver más
|
|
|
|
|
|
|
|
|
|
|
Julio Ronceros, Carlos Raymundo, Eduardo Ayala, Diego Rivera, Leonardo Vinces, Gustavo Ronceros and Gianpierre Zapata
This study delves into the examination of internal flow characteristics within closed (with nozzles) and open-end pressure-swirl atomizers (lacking nozzles). The number of inlet channels ?n? and the opening parameter ?C? were manipulated in this study, a...
ver más
|
|
|
|
|
|
|
|
|
|
|
Gang Zhao, Tian Qiu and Peng Liu
The pre-swirl stator-rotor system is a common and important structure in gas turbines, and its main function is to provide cold air to the turbine blades with a low relative total temperature. Under normal conditions, the boundaries of the system are sym...
ver más
|
|
|
|
|
|
|
|
|
|
|
Szabolcs Szekeres, Attila Kostyák, Ferenc Szodrai and Imre Csáky
As a result of COVID-19, many office buildings around the world have downsized their employees, but the comfort parameters in the building had to be kept. The facilities operation rearranged the workstations to keep physical distance and placed plexiglas...
ver más
|
|
|
|
|
|
|
|
|
|
|
Kacper Palkus and Piotr Strzelczyk
The dimensional analysis and the numerical parametric study of the typical outer air seal from a low-pressure turbine were performed in the framework of the presented paper. The most crucial variables for the flow through the outer air seal were identifi...
ver más
|
|
|
|
|
|
|
|
|
|
|
Wonjeong Hyun, Jina Kim, Heesang Chae and Changjin Lee
The occurrence of low-frequency instability (LFI) appears to be related to multiple interactions among many complex physical processes, such as vortex shedding, boundary-layer oscillation, and additional combustion in the post-combustion chamber. In this...
ver más
|
|
|
|
|
|
|
|
|
|
|
Sebastian Leichtfuß, Johannes Bühler, Heinz-Peter Schiffer, Patrick Peters and Michael Hanna
This paper provides an investigation of a casing treatment (CT) approach for pressure ratio improvements of centrifugal compressors between peak efficiency and surge. Results were experimentally verified for a variety of automotive turbocharger compresso...
ver más
|
|
|
|
|
|