Results 21 to 30 of about 2,028 (262)

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

open access: yesAerospace
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   +4 more
doaj   +1 more source

Test problem of flow modelling in the Rotor 37 compressor stage

open access: yesАвіаційно-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   +4 more
doaj   +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]

open access: yesE3S 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.   +4 more
doaj   +1 more source

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

open access: yesInternational 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   +6 more
doaj   +1 more source

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

open access: yesАвіаційно-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

open access: yesXibei 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

open access: yesАвіаційно-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

Modelling Non-Uniform Bleed in Axial Compressors [PDF]

open access: yesVolume 2B: Turbomachinery, 2015
The coupling between the bleed system and the flowfield of a downstream compressor stage is studied using two approaches. In the first, three-dimensional, full annulus, unsteady computations simulate the flow in a low speed research compressor with non-uniform bleed extraction.
Grimshaw, SD, Pullan, G, Hynes, TP
openaire   +1 more source

Effects of stator splitter blades on aerodynamic performance of a single-stage transonic axial compressor

open access: yesJournal of Mechanical Engineering and Sciences, 2020
Splitter blades located between stator blades in a single-stage axial compressor were proposed and investigated in this work to find their effects on aerodynamic performance and operating stability.
Ky-Quang Pham   +2 more
doaj   +1 more source

RoundMi: A quantitative method to analyze mitochondrial morphology in mitotic cells

open access: yesFEBS Open Bio, EarlyView.
RoundMi is a workflow for rapid analysis of mitochondrial morphology in mitotic cells. By combining adaptive preprocessing with automated segmentation and quantification, it enables accurate measurements from single focal plane images, reducing acquisition time and computational demands while remaining compatible with high‐throughput fixed and live ...
Elmira Parvindokht Bararpour   +2 more
wiley   +1 more source

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