axial distortion

Stall inception prediction of axial compressors with ...

 · The low-speed single-stage axial-flow compressor TA36 operating at its design rotating speed at the laboratory located in Beijing University of Aeronautics and Astronautics is selected as the research object. Two radial inlet distortion generators were designed to generate the radially distorted inlet flow of 10% and 20% intensities.

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Investigation on centrifugal impeller in an axial-radial ...

 · Assembling an axial rotor and a stator at centrifugal compressor upstream to build an axial-radial combined compressor could achieve high pressure ratio and efficiency by appropriate size augment. Then upstream potential flow and wake effect appear at centrifugal impeller inlet. In this paper, the axial-radial compressor is unsteadily simulated by three-dimensional Reynolds averaged Navier ...

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JAHN TELLER DISTORTION | EFFECT | THEOREM | EXAMPLES ...

JAHN TELLER DISTORTION - EFFECT - THEOREM. Theorem: In a nonlinear molecule, if degenerate orbitals are asymmetrically occupied, a distortion will occur to remove the degeneracy. (or) In an electronically degenerate state, a nonlinear molecule undergoes distortion to remove the degeneracy by lowering the symmetry and thus by lowering the energy.

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Distortions in Octahedral Geometry

Teller Distortion there is degeneracy and Jahn-Teller Distortion is observed. Jahn-Teller Distortion in Cu(II) Complexes d x2-y2 e g energy d xy d z2 t 2g Cu(II) in regular octa-d xz d yz [C F ]4-hedral environment Cu(II) after J-T distortion [CuF 6 4-Jahn-Teller Distortion in d9 Complexes Δo >> δ1 > δ2.

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Redistribution of an inlet temperature distortion in an ...

 · Redistribution of an inlet temperature distortion in an axial flow turbine stage. ... A Numerical Study of Secondary Flow in Axial Turbines With Application to Radial Transport of Hot Streaks. 1 February 2000 | Journal of Turbomachinery, Vol. 122, No. 4.

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(PDF) Axial Imidazole Distortion Effects on the Catalytic ...

Axial Imidazole Distortion Effects on the Catalytic and Binding Properties of Chelated Deuterohemin Complexes. Inorganic Chemistry, 1996. Enrico Monzani. Luigi Casella. Piercarlo Fantucci. Luca De Gioia. Enrico Monzani. Luigi Casella. Piercarlo Fantucci. Luca De …

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Distortion Analysis of Axial Contraction of Carburized ...

 · The measured axial distortion (change of length) at A-B distance and total length as well as the predicted axial distortions by three simulation types are shown in Fig. 8. Notation of #0, #1, #2, and #3 represents the measured results, the predicted results by simulations #1, #2, and #3, respectively.

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NUMERICAL SIMULATION OF STATIC INFLOW …

DISTORTION ON AN AXIAL FLOW FAN Arun Raj S1* and Pal Pandian P2 *Corresponding Author: Arun Raj S, [email protected] The present CFD analysis is aimed at studying the performance and flow characteristics in an axial flow fan under uniform and …

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Image-based correction of continuous and discontinuous non ...

Image-based correction of continuous and discontinuous non-planar axial distortion in serial section microscopy. Saalfeld Lab. Hanslovsky P, Bogovic JA, Saalfeld S ... the axial dimension of the volume is sampled by physically removing thin sections from the embedded specimen and subsequently imaging either the block-face or the section series ...

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Dainese

Italian motorcycling legend and journalist Nico Cereghini talks about the features that make Dainese Axial Distortion Control System unique. - Nico...

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"Experimental Investigation of Inlet Distortion in a ...

 · The primary objective of this research is to present results and methodologies used to study total pressure inlet distortion in a multi-stage axial compressor environment. The study was performed at the Purdue 3-Stage Axial Compressor Facility (P3S) which models the final three stages of a production turbofan engine''s high-pressure compressor (HPC). The goal of this study was twofold; …

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Ch 03

the paraxial focus to the axial intersection of the ray is called longitu-dinal spherical aberration. Transverse, or lateral, spherical aberration is the name given to the aberration when it is measured in the "verti-cal" direction. Thus, in Fig. 3.2 AB is the longitudinal, and …

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Axial distortion of airways in the lung

Axial loads were applied around the circumference of an airway lumen by pulling on a cup-shaped anchor that embedded itself in the airway wall. Axial displacements were measured as a function of distance from the load, and the data were compared to the results of …

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Stress Generation in an Axle Shaft during Induction ...

 · For a heat transfer coefficient of 12 kW/m2·C, the residual stresses and axial distortion after induction hardening are shown in Figure 6. The highest tensile stress in the axial direction is located at the centerline of the shaft above the flange. Predicted axial residual stress is 750 MPa compression on the shaft surface, and the predicted ...

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Measurements of inlet flow distortions in an axial flow ...

A large quantity of experimental data on inlet flow distortions in an axial flow fan were obtained. The purpose of the study was to determine the effects of design and operating variables and the type of distortion on the response of an axial flow turbomachinery rotor. Included are background information and overall trends observed in distortion attenuation and unsteady total pressure losses.

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Axial aberrations of lenses

AXIALABERRATIONSOFLENSES ByE.D.TillyerandH.I.Shultz CONTENTS Page I troduction 341 II.Piirposeofinvestigation 342 III.Errorsaffectinganopticalimage 342 1 ...

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A comparison of predicted and measured inlet distortion ...

A comparison of predicted and measured inlet distortion flows in a subsonic axial inlet flow compressor rotor Detailed flow measurements were taken inside an isolated axial compressor rotor operating subsonically near peak efficiency. These Laser Anemometer measurements were …

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Dainese facts: Axial Distortion Control System with Nico ...

 · Axial Distortion Control System is the joint that elevates Dainese boots to superior safety levels for maximum foot and ankle protection. RELATED ARTICLES. Motorbike / Tech. Dainese Facts: suit-to-boot integration with Nico Cereghini. The world''s most advanced ankle protection system, in the words of a legend.

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An experimental investigation on the interaction between ...

 · Although swirl distortion shows clear recovery at rotor exit, downstream components still work at off-design conditions due to the induced nonuniformity in axial velocity and total pressure. Keywords Axial compressor, swirl distortion, interaction, experimental investigation

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Perspective distortion (photography)

Related to this concept is axial magnification-- the perceived depth of objects at a given magnification. Perspective distortion takes two forms: extension distortion and compression distortion, also called wide-angle distortion and long-lens or telephoto distortion, …

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Axial distortion of airways in the lung, Journal of ...

 · Axial distortion of airways in the lung. J. Appl. Physiol.: Respirat. Environ. Exercise Physiol. 54(l): 185-190, 1983.-Axial loads were applied around the circumference of an airway lumen by pulling on a cup-shaped anchor that embedded itself in the airway wall.

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Effects of Inlet Flow Distortion on the Performance of ...

 · The performance loss due to the distortion is small since the efficiency values in the two sectors are only a bit lower than the efficiency at a comparable operating point with clean inlet flow. However, the control system of the engine can react to the inlet flow distortion in such a way that the thrust delivered changes significantly.

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Optical Aberrations

Axial chromatic aberration (ACA) occurs everywhere in the field of view, and is pretty much the same everywhere. The fact that the refractive index (nλ) of glass is different for different wavelengths causes this. The result is that a simple lens (e.g. a magnifying glass) has a different focal length for each wavelength of light as shown in figure 1.1a below.

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Effects of Axial and Radial Distortion on Residual Stress ...

The complex distortion often occur when the pipe sections of HSAW pipe are cut along the axis. The residual stress caused by the axial and radial distortion in the cut-ring test of HSAW pipe is studied by elastic mechanics theory in this paper, and the effects of the axial and radial distortion on the residual stress of HSAW pipe are analyzed according to the results of the cut-ring test of ...

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Active Stabilization of Axial Compressors With ...

 · This paper describes the first experimental validation of transfer function modeling and active stabilization for axial compressors with circumferential inlet distortion. The inlet distortion experiments were carried out in a three-stage low-speed compressor. Theory–experiment comparisons of steady performance, unsteady stall precursor, and ...

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What is radial, tangential and axial?

Axial, radial, and tangential are terms used to describe directions in relation to a cylindrical object, such as a pipe or a wheel. Axial follows the length of the cylinder, perpendicular to the axis. Radial points from the middle out towards the ...

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Temperature dependence of the Cr3+ site axial distortion ...

CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): The electron spin resonance (ESR) of Cr3+ in LiSrAlF6 (LiSAF:Cr) and LiSrGaF6 (LiSGaF:Cr) single crystals has been measured in the temperature range between 270 and 470 K. The external magnetic field orientation dependence of the spectra is described by a spin Hamiltonian of axial symmetry for both compounds.

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Rotor Axial Movement Identification

Current signature is an excellent method for identifying axial movement of the rotor. The current distortion caused by the axial movement causes a noticeable distortion at the fifth harmonic of the fundamental for 60 HZ that would be 300 HZ. The distortion causes a split peak at the fifth harmonic.

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Performance of a Low Speed Axial Compressor Rotor Blade ...

flow distortions on axial flow compressor performance can be referred to Charalambous et al. (2004). They showed that key signature of inlet distortion is drop in axial velocity mag-nitude within the distorted region. This velocity drop can be led to change in some overall parameters such as mass flow rate, pressure ratio and efficiency.

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Probing the Axial Distortion Effect on the Magnetic ...

Three mononuclear octahedral Co(II) complexes are reported, [Co(py)4(SCN)2] (1), [Co(py)4(Cl)2]·H2O (2), and [Co(py)4(Br)2] (3), that exhibit different distortions with compression (1) or elongation (2 and 3) of the axial positions. Easy plane magnetic anisotropy was confirmed by magnetic, HF-EPR, and computational studies for all complexes. Further analyses indicate that both the sign and ...

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Enhancing SMM properties via axial distortion of ...

Enhancing SMM properties via axial distortion of Mn III 3 clusters† Ross Inglis, a Leigh F. Jones, a Georgios Karotsis, a Anna Collins, a Simon Parsons, a Spyros P. Perlepes, b Wolfgang Wernsdorfer * c and Euan K. Brechin * a

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Distortion Analysis of Axial Contraction of Carburized ...

Axial contraction of total length was measured after such case-hardening process. Using DEFORM-HT Ver 6.1 simulation tool incorporating phase transformation kinetics, the causal factor of negative axial distortion is studied. Analysis of time-dependent displacement, temperature, phase transformation, and stress-strain generation is presented.

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