Preliminary analysis of the flow field in a transparent model of a SRF cavity by PIV

A preliminary analysis of a single-stage transonic fan with a hub-to-tip ratio of 0.385 is presented in this paper. The flow field design computer program and the parameter selection of the fan parameters are reviewed. The modifications which should be made to improve the performance of the fan are pointed out. The experimental results demonstrate that the overall performance design goals of the fan have been achieved at design speed and flow rate. But fan discharge total pressure and total temperature gradients still exist efficiency is poor at the hub and tip regions. Therefore the single stage fan is not suitable for use as an inlet stage. The main reason for the problems mentioned above are the inaccurate calculation of flow field and inadequate selection of design parameters.

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The Research on Post Rolling of Aerodynamic Characteristics Numerical Simulation of Flow Field

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.684.30 ◽

2014 ◽

Vol 684 ◽

pp. 30-33

Author(s):

Qi Wang ◽

Jing Zhang ◽

Ming Ming ◽

Xiao Xu Chen

Keyword(s):

Flow Field ◽

Preliminary Analysis ◽

Aerodynamic Force ◽

Aerodynamic Characteristics ◽

Source Model ◽

Cfd Analysis ◽

Analysis Method ◽

Model Flow ◽

The Difference ◽

Aerodynamic Torque

In this paper, according on post rolling maneuver and the flow field, we build a CFD analysis method about momentum source model flow field and aerodynamic characteristics. Preliminary analysis of the numerical has be finished to contrast the difference of post rolling maneuver. The changing law of aerodynamic force, aerodynamic torque variation and the focus position have be given.

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The Structure and Two-Phase Flow Analysis for a New SVLX Static Mixer

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.130-134.696 ◽

2011 ◽

Vol 130-134 ◽

pp. 696-700

Author(s):

Qing Wu ◽

Nan Li ◽

Quan Lai Li

Keyword(s):

Flow Field ◽

Preliminary Analysis ◽

Two Phase Flow ◽

Structural Parameters ◽

Flow Analysis ◽

Applied Force ◽

Phase Flow ◽

Static Mixer ◽

Two Phase ◽

The Cross

A new SVLX static mixer is original designed by the author with the structure of alternative connection of the SV static mixing unit and cross shaped stationary helical fin. The two-phase flow is sheared, separated, impinged and rotated by SV static mixing unit, as well as whirled by the cross shaped stationary helical fin. Hence the mixer efficiency is enhanced. The most advantage of this design is the mixer efficiency is more enhanced with none applied force. Followed by the static mixer structure illustration, the preliminary analysis of the two-phase flow field is carried out, which provides some proofs for the selection and optimization of the new SVLX static mixer structural parameters.

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FeXIV Line Emission Polarization of the July 11, 1991 Solar Corona

International Astronomical Union Colloquium ◽

10.1017/s0252921100026002 ◽

1994 ◽

Vol 144 ◽

pp. 541-547

Author(s):

J. Sýkora ◽

J. Rybák ◽

P. Ambrož

Keyword(s):

High Resolution ◽

Solar Corona ◽

Emission Line ◽

Solar Eclipse ◽

White Light ◽

Preliminary Analysis ◽

Line Emission ◽

Total Solar Eclipse ◽

Degree Of Polarization ◽

High Resolution Images

AbstractHigh resolution images, obtained during July 11, 1991 total solar eclipse, allowed us to estimate the degree of solar corona polarization in the light of FeXIV 530.3 nm emission line and in the white light, as well. Very preliminary analysis reveals remarkable differences in the degree of polarization for both sets of data, particularly as for level of polarization and its distribution around the Sun’s limb.

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AAC Supports for Individuals With Rett Syndrome Across the Lifespan

Perspectives on Augmentative and Alternative Communication ◽

10.1044/aac24.3.74 ◽

2015 ◽

Vol 24 (3) ◽

pp. 74-85

Author(s):

Sandra M. Grether

Keyword(s):

Rett Syndrome ◽

Communication Skills ◽

Preliminary Analysis ◽

Multidisciplinary Approach ◽

Motor Deficits ◽

Complex Profile ◽

Communication Behaviors ◽

The Individual

Individuals with Rett syndrome (RS) present with a complex profile. They benefit from a multidisciplinary approach for diagnosis, treatment, and follow-up. In our clinic, the Communication Matrix © (Rowland, 1990/1996/2004) is used to collect data about the communication skills and modalities used by those with RS across the lifespan. Preliminary analysis of this data supports the expected changes in communication behaviors as the individual with RS ages and motor deficits have a greater impact.

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