2015
DOI: 10.1515/eng-2015-0047
|View full text |Cite
|
Sign up to set email alerts
|

Designing and updating the flow part of axial and radial-axial turbines through mathematical modeling

Abstract: The paper describes an algorithm for the design of axial and radial-axial type turbines. The algorithm is based on using mathematical models of various levels of complexity -from 1D to 3D. Flow path geometry is described by means of analytical methods of profiling using a limited number of parameters. 3D turbulent flow model is realised in the program complex IPMFlow, developed based on the earlier codes FlowER and FlowER-U. Examples of developed or modernized turbines for differentpurpose power machines are p… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1
1

Citation Types

0
10
0
4

Year Published

2016
2016
2022
2022

Publication Types

Select...
6
2
1

Relationship

0
9

Authors

Journals

citations
Cited by 28 publications
(14 citation statements)
references
References 7 publications
0
10
0
4
Order By: Relevance
“…This is the main cause of low-frequency pressure pulsations of large amplitude, leading to vibrations of the walls, which limit the flow, and elements of the rotor of the hydraulic unit. All of this ultimately reduces the reliability and durability of the operation [12][13][14]. On modes, which are different from optimal, in Francis hydraulic turbines by the law, which is close to the square parabola, depending on the rate change compared to optimal, increase circulating energy losses due to the part of the moment of quantity of movement that was not transferred to the runner.…”
Section: If the Circulation Flowsmentioning
confidence: 99%
“…This is the main cause of low-frequency pressure pulsations of large amplitude, leading to vibrations of the walls, which limit the flow, and elements of the rotor of the hydraulic unit. All of this ultimately reduces the reliability and durability of the operation [12][13][14]. On modes, which are different from optimal, in Francis hydraulic turbines by the law, which is close to the square parabola, depending on the rate change compared to optimal, increase circulating energy losses due to the part of the moment of quantity of movement that was not transferred to the runner.…”
Section: If the Circulation Flowsmentioning
confidence: 99%
“…In unsteady modes of off-designs conditions, due to leakage and off-design flow angles in the flow channels, substantial separated flows occurred, leading to a significant reduction in the efficiency. In order to improve the aerodynamic characteristics of the radial-axial type rotor both for the steady conditions and especially at variable operating conditions, blades of complex spatial forms with the corporeal profiles are used [1][2][3][4].…”
Section: Introductionmentioning
confidence: 99%
“…Наиболее популярными и востребованными программами на рынке на данный момент являются SolidWorks, Autodesk Inventor, Kompas 3D и др. [1][2][3][4][5][6][7][8][9][10][11].…”
unclassified
“…1-3. [8,9]. В этой системе четырех уравнений независимыми искомыми параметрами являются три компонента скорости u 1 , u 2 , u 3 и давление p. Плотность ρ жидкости, а также газа при скоростях до 0,3 числа Маха, считается величиной постоянной.…”
unclassified