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Tuesday, April 14, 2020 | History

3 edition of Measurement of gust response on a turbine cascade found in the catalog.

Measurement of gust response on a turbine cascade

Anatole P. Kurkov

Measurement of gust response on a turbine cascade

  • 366 Want to read
  • 9 Currently reading

Published by National Aeronautics and Space Administration, National Technical Information Service, distributor in [Washington, DC], [Springfield, Va .
Written in English

    Subjects:
  • Annular flow.,
  • Cascade flow.,
  • Gusts.,
  • Mach number.,
  • Pressure distribution.,
  • Rotor aerodynamics.,
  • Rotor blades (Turbomachinery),
  • Subsonic flow.,
  • Turbine blades.,
  • Velocity distribution.

  • Edition Notes

    StatementA.P. Kurkov and B.L. Lucci.
    SeriesNASA technical memorandum -- 106776.
    ContributionsLucci, B. L., United States. National Aeronautics and Space Administration.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL15411522M

    This textbook is a collection of technical papers that were presented at the 10th International Symposium on Unsteady Aerodynamics, Aeroacoustics, and Aeroelasticity of Turbomachines held September , at Duke University in Durham, North Carolina. TURBINE GOVERNOR TESTING AND MODEL VALIDATION GUIDELINE 1. vFINAL 28/04/ Page 3 of 30 Disclaimer (a) Purpose – This document has been prepared by the Australian Energy Market Operator Limited (AEMO) to provide information to assist generators in preparation of test plans that are required to derive R2 data parameters as required by the Generating . A linear cascade was used to evaluate the performance of two blade tip shapes that substantially reduced internal gap loss and to compare them to a standard sharp or flat tip blade. A method whereby linear cascade data was analyzed as if it were a rotor with work transfer, was used to evaluate the performance of the various blade tip geometries. speed, the turbine pressure ratio is larger than that of the compressor. Here, the turbine is being run with room temperature pressurized nitrogen, although the turbine was designed for engine operation in which the turbine inlet temperature would be much higher (~ K). The Fig. 4. Turbine test results, same run as Fig. by: 3.


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Measurement of gust response on a turbine cascade by Anatole P. Kurkov Download PDF EPUB FB2

Get this from a library. Measurement of gust response on a turbine cascade. [Anatole P Kurkov; Barbara L Lucci; United States. National Aeronautics and Space Administration.].

The paper presents benchmark experimental data on a gust response of an annular turbine cascade. The experiment was particularly designed to provide data for comparison with the results of a typical linearized gust-response analysis.

Reduced frequency, Mach number, and incidence were varied by: 1. The paper presents benchmark experimental data on a gust response of an annular turbine cascade. The experiment was particularly designed to provide data for comparison with the results of a typical linearized gust-response analysis.

Reduced frequency, Mach number, and incidence were varied by: 3. A study was made of the gust response of an annular turbine cascade using a two-dimensiomd Navier Stokes code. The time-marching CFD code, NPARC, was used to calculate the unsteady forces due to the fluid flow.

The computational results were compared with a previously published experimental data for the annular cascade reported in the : Rama Subba Reddy Gorla, Tondapu Seetharama Reddy, Dhanireddy Ramalinga Reddy, Anatole P.

Kurkov. During this investigation, the unsteady aerodynamic response of a turbine cascade was investigated for three different cases: (1) the clamped blades subjected to periodic, upstream generated aerodynamic gusts, (2) the cascade forced to vibrate in the travelling wave mode in a uniform flow, and (3) the cascade forced to vibrate in the presence Cited by: 4.

Design of turbine cascades with transitional profile boundary layers Gabriel Acacio Alarcon Alarcon, Gabriel Acacio, "Design of turbine cascades with transitional profile boundary layers " ().Retrospective Theses and Dissertations.

Practical Importance of a Turbine Cascade Design System 4 Objective and Scope of Present Work 6. Experimental measurements of the flow field in a low-speed, large-scale, annular cascade of highly loaded turbine rotor blades are presented.

The blade has a turning angle of deg, an aspect ratio ofand a Zweifel coefficient of : Han Wanjin. The gas turbine is a power plant that produces a great amount of energy for its size and weight and thus has found increasing service in the past 20 years in the petrochemical industry and utilities throughout the world.

The gas turbine's compactness, weight, and multiple fuel applications make it a natural power plant for offshore second edition is not only 4/5(3). Determining Wind-Turbine Response from Rapid Axial Gusts Najiba Hussain Department of Mechanical and Materials Engineering, Queen’s University, Kingston, Canada (March, ) Synopsis An experimental setup has been developed to quantify the response of a horizontal-axis wind-turbine during a gust.

Preliminary tests have been. GUST RESPONSE MRASUREMENTS ON A MODEL AIRCRAFT by R. Cansdale H. Hall Structures Dept., R.A.E., Farnborough SUMMARY A technique has been developed for investigating the symmetrical response of a model aircraft to an up-gust using a sled track.

Test results for a rigid slender wing model agree well with calculations. A unified autoregressive (AR) model is identified, based on the wind tunnel test data of open-loop gust response for an aircraft model.

The identified AR model can be adapted to various flow velocities in the wind tunnel test. Due to the lack of discrete gust input measurement, a second-order polynomial function is used to approximate the gust input amplitude by flow by: 1.

If the cascade throat width to pitch ratio o/s isdetermine the incidence of the flow onto the blades at which the cascade will choke with an inlet Mach number of Assume that there is no loss upstream of the cascade throat.

A high-speed air turbine cascade is estimated to have an AVDR of gust sensitivity, considering in turn, vertical, horizontal and lateral gusts. Next, cross-wind control will be considered and this is followed by an attempt to predict dynamic gust response, using Jones' self-similar discrete gust Size: 3MB.

@article{osti_, title = {Analyses and design tool for the prediction of structural failure of current and future composite wind turbine blades}, author = {Fronk, T H and Gebert, G A and Jones, D L and Blotteaux, R J}, abstractNote = {A computer code was developed which models the aeroelastic-structural response of arbitrary wind turbine blades undergoing gust loading.

MEASUREMENTS ON SUPERSONIC TURBINE CASCADES - METHODICAL APPROACH cascade is presented and discussed. aerodynamic. Turbine Tip Clearance Measurement - Propulsion Engineering Series [Baker, Lawrence C., Grady, Gordon E., Mauch, Hagen R.] on *FREE* shipping on qualifying offers.

Turbine Tip Clearance Measurement - Propulsion Engineering Series. Gust response of unmanned air vehicles flight formation was analyzed by using a bio-inspired flight formation simulator and gust models. Two motion parameters, polarity and the nearest neighbor distance, were used to evaluate the gust effect on the flight formation under various mutual interaction conditions.

As a result, it was. Measurement of Trailing Edge Noise Using Directional Array and Coherent Output Power Methods. Compuatational Aeroacoustics: Boundary Conditions • Monday, 17 June • hrs Nonlinear Analysis of Airfoil High-Intensity Gust Response Using a High-Order Prefactored Compact Code.

Andrea Crivellini, Vladimir Golubev. GuestRevu is an awesome system that introduces an innovative approach to guest feedback and online reputation management. It provides great insights along with personalised service that helps to achieve best results.

We’ve been amazed how much information escaped our attention before. Thanks to GuestRevu we can now handle it effectively. The quality of a single point wind speed measurement is compared to lidar measurements including the effect of range weighting, limitation to line-of-sight direction and wind evolution in [7].

Wind turbine design is the process of defining the form and specifications of a wind turbine to extract energy from the wind. A wind turbine installation consists of the necessary systems needed to capture the wind's energy, point the turbine into the wind, convert mechanical rotation into electrical power, and other systems to start, stop, and control the turbine.

Viscous Flow Field Computations for the VKI–1 Turbine Cascade Using Different Turbulence Models. Lenke Navier-Stokes and Potential Calculations of Axial Spacing Effect on Vortical and Potential Disturbances and Gust Response in an Axial Compressor.

Meng-Hsuan Chung Measurement and Visualization of Three-Dimensional Flows in a. Simulating novel gas turbine conditions for materials assessment: cascade design and operation J.

Sumner ∗ 1, N. Simms, W. Stamm2 and J. Oakey Integrated gasification combined cycles can incorporate pre-combustion carbon capture. Experimental Flutter Investigationsof an Annular Compressor Cascade: Influence of Reduced Frequencyon Stability 77 Joachim Belz and Holger Hennings Part II Forced Response Unsteady Gust Response in the Frequency Domain 95 A.

Filippone Axial Turbine Blade Vibrations Induced by the Stator Flow File Size: KB. Influence of Modeshape Mistuning on the Forced Response of a Turbine Cascade. Beretta; G. Kahl; P. Ott. 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery (ISROMAC), Honolulu, Hawaii, February 26 – March 2, Gust load reduction concept in wind turbines a simple wind turbine model with three elastic blades is formulated and some numerical simulations are performed.

The results of the simulations include, among others, the time-history of the out-of-plane blade bending moment in response to the uniform gust, showing that, in this way, it is. The gas turbine manual [C.R. Simmons] on *FREE* shipping on qualifying offers. The Petroleum Measurement Committee of the Institute of Petroleum is responsible for the production and maintenance of standards and guides covering the various aspects of static and dynamic measurement of petroleum.

These are issued as separate Part s and Sections of the Institute's Petroleum Measurement Manual, which was first published in File Size: KB. Gust response analysis and wind tunnel test for a high-aspect ratio wing Liu Yia, Xie Changchuana,*, Yang Chaoa, Cheng Jialinb aSchool of Aeronautic Science and Engineering, Beihang University, BeijingChina bChengdu Aircraft Industrial (Group) Co.

Ltd., ChengduChina Received 20 July ; revised 24 August ; accepted 4. Experimental Flutter Investigations of an Annular Compressor Cascade: Influence of Reduced Frequencyon Stability 77 Joachim Belz and Holger Hennings Part II Forced Response Unsteady Gust Response in the Frequency Domain 95 A.

Filippone Axial Turbine Blade Vibrations Induced by the Stator Flow tic Responses of a Cascade," M.S.A.E., August Sheryl Marie Patrick, \An Inverse Problem for a Nonuniform Subsonic Flow Inter- acting with a.

Advancements in wind-turbine design are currently limited by the unsteady, gust-induced structural loadings incurred on blades. By studying how animals swim and fly in unsteady environments, improvements to wind-turbine gust performance can be achieved.

Such biomimetic research takes advantage of millions of years of evolutionary optimization. The approach was later applied to the problems of gust response by Henderson and Daneshyar [], and Henderson [] who also considered the effects of camber on thin airfoils at small angles of attack.

Comparisons of various cascade prediction methods at low frequencies have been given by Horlock et al. Gust Response and Control of Very Flexible Aircraft by Matthew J. Dillsaver A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy (Aerospace Engineering) in the University of Michigan Doctoral Committee: Professor Carlos E.

Cesnik, Co-Chair Professor Ilya V. Kolmanovsky, Co-Chair. Seidel et. al.: Validation of Offshore load simulations using measurement data from the DOWNVInD project. Published in: Conference Proceedings European Offshore Wind Stockholm Page 3 of 10 All load and vibration signals are sampled with 32 Hz and stored as 10 minute time series.

where experimental open-loop the gust frequency at di erent test conditions. To combine this expression to the standard AR model, we increase the dimensions of gust disturbance from one to three. e refore, the gust disturbance in () is written as a vector: u () = sin (), 0 sin (), 2 0 sin ().

() By this approximation, we can. Measurement system based on inclination sensors (example) Monitoring of Concrete Bases of Wind Turbines with Modern Inclinometers: Approaches and Experience () Boris Resnik (Germany) FIG Working Week Surveying the world of tomorrow - From digitalisation to augmented reality Helsinki, Finland, May 29ÿJune 2, and frequency response analysis of the gust and control response.

Objectives of the Present Study The objective of this study is to establish a verified method of pre- dicting the dynamic and aeroelastic behavior of the tilting proprotor air- craft. The equations of motion for a cantilever wing with a rotati.i:g rotorFile Size: 2MB. Gust load reduction concept in wind turbines J.

Grzędziński & A. Mróz Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland ABSTRACT: A concept is presented of semi-active gust load alleviation in wind turbines.

Blade aerodynamic torsional moment is used as an actuator for forcing the blade to feather and. In future Ultra-High By-Pass Ratio turboengines, the turbomachinery noise (fan and turbine stages mainly) is expected to increase significantly. A review of analytical models and numerical methods to yield both tonal and broadband contributions of such noise sources is presented.

The former rely on hybrid methods coupling gust response over very thin flat plates of finite chord length, Cited by: 1. The former rely on hybrid methods coupling gust response over very thin flat plates of finite chord length, either isolated or in cascade, and acoustic analogies in free-field and in a duct.

The latter yields tonal noise with unsteady Reynolds-Averaged Navier–Stokes (u-RANS) simulations, and broadband noise with Large Eddy Simulations (LES). Gust Response Analysis of a Turbine Cascade; Optimal Measurement Parameter Selection of Turboprop Engine Using GPA Approach; Citation Information: International Journal of Turbo and Jet Engines, Vol Issue 2, Pages –, ISSN (Online)ISSN Cited by: 2.This textbook is a collection of technical papers that were presented at the 10 th International Symposium on Unsteady Aerodynamics, Aeroacoustics, and Aeroelasticity of Turbomachines held Septemberat Duke University in Durham, North Carolina.

The papers represent the latest in state of the art research in the areas of aeroacoustics, aerothermodynamics.