scholarly journals Performance Prediction of A Turboshaft Engine by Using of One Dimensional Analysis

2014 ◽  
Vol 3 (3) ◽  
pp. 99-108 ◽  
Author(s):  
Siamak Hosseinzadeh ◽  
Meghdad Rahimi Galogahi ◽  
Amin Bahrami
Keyword(s):  
Dimensional Analysis ◽  
Performance Prediction ◽  
One Dimensional ◽  
Turboshaft Engine

A New Stage Stacking Technique for Axial-Flow Compressor Performance Prediction

1978 ◽  
Vol 100 (4) ◽  
pp. 698-703 ◽  
Author(s):  
A. R. Howell ◽  
W. J. Calvert
Keyword(s):  
High Pressure ◽  
Gas Turbine ◽  
Dimensional Analysis ◽  
Performance Prediction ◽  
Axial Flow ◽  
One Dimensional ◽  
Through Flow ◽  
Compressor Performance ◽  
Flow Compressor ◽  
Work Done

Modern through-flow solutions, with allowances for losses, etc., give good predictions around design conditions. They are more difficult to apply effectively when individual blade rows are operating under positive stall, negative stall or choke conditions, as can happen off-design in multistage axial-flow compressors of medium and high pressure ratios. A return has been made at the National Gas Turbine Establishment to stage stacking techniques to help solve the off-design performance problems. Basically a new mean radius or one-dimensional analysis has been developed with particular reference to the stall and choke conditions: corrections are then introduced for radial variations and for stage parameters such as blockage and work done factors. Examples on the use of the technique have been selected to illustrate both its success and difficulties.

Study of thermal throat of RBCC combustor based on one-dimensional analysis

2015 ◽  
Vol 117 ◽  
pp. 130-141 ◽  
Author(s):  
Ya-jun Wang ◽  
Jiang Li ◽  
Fei Qin ◽  
Guo-qiang He ◽  
Lei Shi
Keyword(s):  
Dimensional Analysis ◽  
One Dimensional

Performance Prediction for Automotive Turbocharger Compressors

1975 ◽  
Vol 189 (1) ◽  
pp. 557-565 ◽  
Author(s):  
A. Whitfield ◽  
F. J. Wallace
Keyword(s):  
Performance Prediction ◽  
Flow Analysis ◽  
Compressor Stage ◽  
Thermodynamic Models ◽  
Flow Rates ◽  
Design Point ◽  
One Dimensional ◽  
Dimensional Flow ◽  
Performance Map ◽  
The Individual

A procedure to predict the complete performance map of turbocharger centrifugal compressors is presented. This is based on a one-dimensional flow analysis using existing published loss correlations that were available and thermodynamic models to describe the incidence loss and slip factor variation at flow rates which differ from the design point. To predict the losses within the complete compressor stage using a one-dimensional flow procedure, it is necessary to introduce a number of empirical parameters. The uncertainty associated with these empirical parameters is assessed by studying the effect of varying them upon the individual losses and upon the overall predicted performance.

One-dimensional analysis of a sleeved-piston gas gun

1984 ◽  
Vol 21 (4) ◽  
pp. 415-416
Author(s):  
Meziane Harhad ◽  
Robert W. Courter
Keyword(s):  
Dimensional Analysis ◽  
One Dimensional ◽  
Gas Gun

Theoretical Investigation of Heat Pipes Operating at Low Vapor Pressures

1968 ◽  
Vol 90 (4) ◽  
pp. 547-552 ◽  
Author(s):  
E. K. Levy
Keyword(s):  
Heat Transfer ◽  
Heat Pipe ◽  
Dimensional Analysis ◽  
Theoretical Investigation ◽  
Heat Pipes ◽  
Vapor Pressures ◽  
One Dimensional ◽  
Evaporator Section ◽  
Heat Transfer Capacity ◽  
Theoretical Results

A one-dimensional analysis of a compressible vapor flowing within the evaporator section of a heat pipe is presented. Comparisons between the theoretical results and existing heat pipe data show that the presence of gasdynamic choking can limit the heat transfer capacity of a heat pipe operating at sufficiently low vapor pressures.

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