Results 31 to 40 of about 39,508 (260)

Effect of Tip Gap Size on the Performance of an Axial Compressor Stage with and without Active Flow Control

International Journal of Turbomachinery, Propulsion and Power, 2023
The tip gap region of an axial compressor rotor is a source of complex flows, inducing losses and stability issues. Recent works have proven the ability of blowing high-speed jets in the tip region to improve the surge margin of an axial compressor stage
Clémence Rannou, Julien Marty, Geoffrey Tanguy, Antoine Dazin   +3 more
doaj   +1 more source

An Evaluation of Passive Wall Treatment with Circumferential Grooves at the Casing of the First and Second Blade Rotor Rows of a High-Performance Multi-Stage Axial Compressor

Aerospace
The internal losses in the tip clearance region strongly influence the compressor performance and its operational range. Previous research proved that passive wall treatments with circumferential grooves in axial compressors effectively increase the ...
Ruben Bruno Diaz, Jesuino Takachi Tomita, Cleverson Bringhenti, Franco Jefferds dos Santos Silva, Diogo Ferraz Cavalca   +4 more
doaj   +1 more source

Evaluation of the prospects for the use of single-stage centrifugal compressors based on high-pressure stages with an inlet guide device at linear gas compressor stations [PDF]

Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение"
The issues of evaluating the technical and economic prospects for the use of gas pumping units with single-stage centrifugal compressors with an axial suction nozzle, created on the basis of high-pressure stages with axial impellers and an adjustable ...
A. D. Vanyashov, V. V. Karabanova, A. A. Nefedov   +2 more
doaj   +1 more source

Test problem of flow modelling in the Rotor 37 compressor stage

Авіаційно-космічна техніка та технологія, 2023
The subject of the study is the dependence of the degree of pressure increase on the airflow in the impeller of the axial compressor degree. The object of study is the Rotor 37 axial compressor.
Andrii Duliepov, Yevhenіі Hlobin, Artem Kovtun, Mykhailo Khyzhniak, Kateryna Balalaieva   +4 more
doaj   +1 more source

Turbocharger Structural Integrity [PDF]

, 2014
Since the introduction of Euro VI in January 2014, all new diesel powered commercial vehicles have been equipped with turbocharged engines. It is virtually impossible to meet these emission regulations without using a turbocharger.
Allport, John, Barrans, Simon, Khodabakhshi, Goodarz   +2 more
core   +1 more source

The investigation of absolute flow non-uniform velocity distributions influence at the centrifugal compressor axial radial impeller inlet using numerical calculation methods in ANSYS CFX [PDF]

E3S Web of Conferences, 2019
Currently, methods of numerical modelling are widely used. They are especially widely used in the design of turbo compressors. For the specific task of designing new flowing parts of a centrifugal compressor, it is not recommended to deviate from the ...
Rakhmanina L.A., Zuev A.V., Petrov A. Yu., Aksenov A.A., Nguyen Minh Hai   +4 more
doaj   +1 more source

Improvement of Moderately Loaded Transonic Axial Compressor Performance Using Low Porosity Bend Skewed Casing Treatment

International Journal of Rotating Machinery, 2014
This paper presents experimental results of a single stage transonic axial flow compressor coupled with low porosity bend skewed casing treatment. The casing treatment has a plenum chamber above the bend slots.
Dilipkumar Bhanudasji Alone, S. Satish Kumar, Shobhavathy M. Thimmaiah, Janaki Rami Reddy Mudipalli, A. M. Pradeep, Srinivasan Ramamurthy, Venkat S. Iyengar   +6 more
doaj   +1 more source

Determining the influence of roughness and tip clearance on the axial multistage compressor characteristics

Авіаційно-космічна техніка та технологія
The operation of gas turbine engines inevitably increases the blade roughness and tip clearance in multistage axial compressors. The result is an increase in its thermogasodynamic parameters. The reason for the increase in the roughness of the blades and
Vadym Datsenko
doaj   +1 more source

Quasi-2D Performance Analysis for Axial Compressors Based on Time-Marching Method

Xibei Gongye Daxue Xuebao, 2020
In order to get a fast performance analysis tool for multi-stage axial compressors, a quasi-two dimensional analysis model based on time-marching method is developed in this paper.

doaj   +1 more source

Method of aerodynamic improvement of axial and centrifugal compressor stages of gas turbine engines

Авіаційно-космічна техніка та технологія
The development of approaches to aerodynamic improvement of compressor stages of gas turbine engines based on numerical modeling of three-dimensional turbulent gas flows remains a pressing task, which is of great importance for the design and ...
Natalya Zinevich
doaj   +1 more source