Numerical solution of steady and unsteady transonic flow in turbine cascades and stages

Halama, Jan; Arts, Tony; Fořt, Jaroslav

doi:10.1016/j.compfluid.2003.05.003

Cited by 7 publications

(7 citation statements)

References 4 publications

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“…The surface tension correction coefficient from the Equation (5) is = 1.194, according to given inlet total temperature and pressure. Results of presented method match well the experimental data of [22] and agree with results of the LaxWendroff method [5]. The shape of isolines in the Figures 8-10 corresponds also to numerical results published in [23].…”

Section: Numerical Results: Two-phase Flow In Barschdorff Nozzlesupporting

confidence: 90%

“…Examples of numerical solution for different configurations (2D nozzle, 2D and 3D cascade and turbine stage) can be found, e.g. in [5]. The aim of current work is to implement modern and less dissipative schemes, such as characteristic flux finite volume scheme [6] (further denoted as VFFC from the French Volumes Finisà Flux Caractéristiques) or Riemann solver for non-homogeneous problems [7] 954 J. HALAMA, F. BENKHALDOUN AND J. FOŘT (further denoted as SRNH from the French Solveur de Riemann Non Homogéne) for convection part, to get more precise prediction of temperature field, which is essential for nucleation and droplet growth modeling.…”

Section: Introductionmentioning

confidence: 99%

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Flux schemes based finite volume method for internal transonic flow with condensation

Halama

Benkhaldoun

Fořt

2011

Numerical Methods in Fluids

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SUMMARYThis paper describes the development of numerical method for the solution of condensing steam flow in internal aerodynamics problems. The numerical method is based on the fractional step method, where the resulting set of ODEs is solved by the two-stage Runge-Kutta method and the homogeneous set of PDEs by a finite volume method. The flow does not contain both phases (gas and liquid) in the whole domain, therefore we discuss properties of used finite volume methods in several cases of single-phase transonic flow in a channel and a turbine cascade. We present numerical results of two-phase flow of condensing steam in 2D nozzle achieved by several numerical methods and show the differences in results caused by numerical diffusion.

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Section: Numerical Results: Two-phase Flow In Barschdorff Nozzlesupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Flux schemes based finite volume method for internal transonic flow with condensation

Halama

Benkhaldoun

Fořt

2011

Numerical Methods in Fluids

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“…For this reason, many workers opt for the classic, well-tested data to verify the numerical calculation, for example in [24][25]. Despite a few attempts made to model the flow in turbine channel in 2D or 3D domain, the prediction on the flow properties still have some discrepancies with no valid reason.…”

Section: Introductionmentioning

confidence: 98%

One-dimensional analysis of the behaviour of wet steam at different inlet conditions

Malek¹,

Hasini²,

Yusoff³

2012

AIP Conference Proceedings

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“…In[4] a study on effects of three different inflow conditions from an upstream blade row was done. In[8] effects of vortex generator jets were tracked around a low pressure turbine blade to study the performance enhancement of turbines. Dependency of some such parameters with the performance of turbine was recorded to help in modelling of turbines in the future.…”

mentioning

confidence: 99%

The Flow Visualization of Small-Scale Aircraft Engine Axial Flow Turbine Rotor using Numerical Technique

Chivukula¹,

Mohla²,

Srinivas

2019

IJMPERD

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The axial flow turbine is widely used in gas turbines for expansion of hot gases emerging from the combustion chamber. The turbine expands the flow and generates power to drive the compressor and fan. The designing needs to accommodate high speeds and altitudes, as well as reduce losses in order to improve stage efficiency and overall efficiency. Some of the problems are tip leakage flow, high thermal loads on the blades, airfoil erosion, etc. The present paper involves basic flow simulation of a small-scale aircraft engine axial flow turbine rotor (full annulus) using ANSYS CFX at standard atmospheric conditions in order to study as well as predict the unsteady characteristics and in the future, to find a solution to curb the unsteadiness found. This paper will be useful for anyone who wants to get a basic idea of modelling and performing analysis for any turbo machinery component using a numerical technique.

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Numerical solution of steady and unsteady transonic flow in turbine cascades and stages

Cited by 7 publications

References 4 publications

Flux schemes based finite volume method for internal transonic flow with condensation

Flux schemes based finite volume method for internal transonic flow with condensation

One-dimensional analysis of the behaviour of wet steam at different inlet conditions

The Flow Visualization of Small-Scale Aircraft Engine Axial Flow Turbine Rotor using Numerical Technique

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