Development of Performance Analysis Program for an Axial Compressor with Meanline Analysis

In order to get a fast performance analysis tool for multi-stage axial compressors, a quasi-two dimensional analysis model based on time-marching method is developed in this paper. The model is based on Euler equation, and several source terms, like inviscid blade force model and viscous force model, are added to simulate different phenomena of compressor internal flow. The flow line in blade area is adjusted to solve the discontinuity problem at blade leading edge. Two test cases-PW3S1, a 3.5-stage axial compressor and a 1.5-stage high-speed axial compressor, are presented to validate the quasi-2D model. The overall performance characteristics of two compressors at different rotation speed are calculated then. The computed results are compared with experimental data or 3D results. The average errors of pressure ratio and efficiency are 0.52% and 0.63% in PW3S1 case, 1.73% and 2.91% in 1.5-stage compressor case, and the model is able to capture shock wave and to predict choke condition.

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Redesign and Performance Analysis of a Transonic Axial Compressor Stator and Equivalent Plane Cascades With Subsonic Controlled Diffusion Blades

Journal of Engineering for Gas Turbines and Power ◽

10.1115/1.3239560 ◽

1984 ◽

Vol 106 (2) ◽

pp. 279-287 ◽

Cited By ~ 19

Author(s):

R. Dunker ◽

H. Rechter ◽

H. Starken ◽

H. Weyer

Keyword(s):

Performance Analysis ◽

Flow Behavior ◽

Axial Compressor ◽

Operating Conditions ◽

Design Concept ◽

Blade Design ◽

Two Dimensional ◽

Controlled Diffusion ◽

Pressure Distributions ◽

Transonic Axial Compressor

In order to verify a new controlled diffusion blade design concept, the stator of an existing transonic axial compressor stage was redesigned. Stator and equivalent cascade tests revealed the potential of such blades for a considerably higher aerodynamic loading than it has been applied up to now. The design procedure is described, and the results of plane cascade and stage testing are submitted, including performance analysis of both cascade and stator blade sections, at design and off-design operating conditions. The blade profile shapes and cascade geometries were calculated by means of an inverse, two-dimensional method taking also into account the axial velocity density ratio (AVDR). This design concept is essentially based on prescribed blade pressure distributions, which are optimized with respect to the blade boundary layer development. The flow phenomena are illustrated by means of loss and flow turning investigations, blade pressure distributions, and laser velocimetry data. The test results reveal that the two-dimensional approach applied is quite promising for the three-dimensional blade design. Finally, overall and blade element performance comparisons between the original NACA 65 profiled stator and the redesigned one demonstrate the favorable flow behavior of the new stator, as well as the great potential of the controlled diffusion blade concept.

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Discussions on Availability of Weather Information Data and Painting Effect of Existing 8,600 TEU Container Ship Using Ship Performance Analysis Program

Journal of Ocean Engineering and Technology ◽

10.26748/ksoe.2020.057 ◽

2020 ◽

Vol 34 (6) ◽

pp. 377-386

Author(s):

Myung-Soo Shin ◽

Min Suk Ki ◽

Gyeong Joong Lee ◽

Beom Jin Park ◽

Yeong Yeon Lee ◽

...

Keyword(s):

Performance Analysis ◽

Container Ship ◽

Analysis Program ◽

Weather Information ◽

Ship Performance

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Lead-Cooled Fast Reactor Annular UN Fuel Design and Development of Performance Analysis Program

Frontiers in Energy Research ◽

10.3389/fenrg.2021.705944 ◽

2021 ◽

Vol 9 ◽

Author(s):

He Yuan ◽

Guan Wang ◽

Rui Yu ◽

Yujie Tao ◽

Zhaohao Wang ◽

...

Keyword(s):

Performance Analysis ◽

Fast Reactor ◽

Strain Analysis ◽

Analysis Program ◽

Fuel Temperature ◽

Stress Strain ◽

Fuel Design ◽

Simulation Results ◽

Uranium Nitride ◽

Fortran Programming Language

A kind of annular uranium nitride (UN) fuel suitable for lead-cooled fast reactor applications has been designed in this study. The design is directly targeting two main issues of UN fuel: severe swelling and thermal decomposition of UN fuel at high temperatures. A performance analysis program based on FORTRAN programming language has been developed for UN fuel in fast reactors. The program contains heat transfer, fuel stress-strain analysis, cladding stress-strain analysis, fission gas release and fuel-cladding mechanical interaction (FCMI) modules, etc. Extensive code verification has been performed by comparing simulation results obtained with the code and those obtained via the COMSOL Multiphysics platform. Preliminary code validation has been conducted as well by comparing code simulation results with experimental data. The results showed that this program could predict the fuel temperature, stress-strain, and displacement of UN fuel during reactor operation with a reasonable accuracy.

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