Author: Mohamed Omar HadjoutPublisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
The Design of a Multistage Axial Flow Compressor Using a Micro-computer System
Author: Mohamed Omar HadjoutComputer Program for Design of Multistage Axial-flow Compressors
Author: A. C. BryansComputer Program for Aerodynamic and Blading Design of Multistage Axial-flow Compressors
Author: James E. CrousePublisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 112
Book Description
Users Manual for Updated Computer Code for Axial-Flow Compressor Conceptual Design
Author: National Aeronautics and Space Administration (NASA)Publisher: Createspace Independent Publishing Platform
ISBN: 9781722931087
Category :
Languages : en
Pages : 24
Book Description
An existing computer code that determines the flow path for an axial-flow compressor either for a given number of stages or for a given overall pressure ratio was modified for use in air-breathing engine conceptual design studies. This code uses a rapid approximate design methodology that is based on isentropic simple radial equilibrium. Calculations are performed at constant-span-fraction locations from tip to hub. Energy addition per stage is controlled by specifying the maximum allowable values for several aerodynamic design parameters. New modeling was introduced to the code to overcome perceived limitations. Specific changes included variable rather than constant tip radius, flow path inclination added to the continuity equation, input of mass flow rate directly rather than indirectly as inlet axial velocity, solution for the exact value of overall pressure ratio rather than for any value that met or exceeded it, and internal computation of efficiency rather than the use of input values. The modified code was shown to be capable of computing efficiencies that are compatible with those of five multistage compressors and one fan that were tested experimentally. This report serves as a users manual for the revised code, Compressor Spanline Analysis (CSPAN). The modeling modifications, including two internal loss correlations, are presented. Program input and output are described. A sample case for a multistage compressor is included. Glassman, Arthur J. Unspecified Center NAG3-1165; RTOP 505-69-50...
Design and Tests of a Six-stage Axial-flow Compressor Having a Tip Speed of 550 Feet Per Second and a Flat Operating Characteristic at Constant Speed
Author: Willard R. WestphalPublisher:
ISBN:
Category : Axial flow compressors
Languages : en
Pages : 66
Book Description
A six-stage axial-flow compressor with a tip speed of 550 feet per second and a flat operating characteristics at constant speed has been designed and tested. It was designed for a constant power input per pound of flow in expectation that this would result in a wider mass-flow operating range at a given stagnation-presssure ratio. The design specific weight flow was 21.3 pounds per second per square foot of frontal area at atmospheric discharge with a stagnation-pressure ratio of 3.25 and an inlet hub-tip radius ratio of 0.7. Several configurations consisting of various blade setting angles and solidities were tested. Tests showed that the design flow, pressure ratio, and flat operating characteristic were obtained over a range of 10 percent of design flow at a peak efficiency of 82 percent for design conditions. The compressor had a possible immediate application for air removal from a large slotted-throat transonic wind tunnel, but the design theory could apply to any low-speed industrial compressor or second spool of a turbojet engine.
Development of Computer Program to Solve Flow Through a Multi-stage Axial Compressor
Author: K. H. LauSTGSTK: A Computer Code for Predicting Multistage Axial Flow Compressor Performance by a Meanline Stage Stacking Method
Author: WISGSK, a Computer Code for the Prediction of a Multistage Axial Compressor Performance with Water Ingestion
Author: T. TsuchiyaPublisher:
ISBN:
Category : Compressors
Languages : en
Pages : 268
Book Description
Axial-flow Compressors
Author: Ronald H. AungierPublisher: American Society of Mechanical Engineers
ISBN:
Category : Science
Languages : en
Pages : 386
Book Description
This book provides a thorough description of an aerodynamic design and analysis systems for Axial-Flow Compressors. It describes the basic fluid dynamic and thermodynamic principles, empirical models and numerical methods used for the full range of procedures and analytical tools that an engineer needs for virtually any tupe of Axial-Flow Compressor, aerodynamic design or analysis activity. It reviews and evaluates several design strategies that have been recommended in the literature or which have been found to be effective. It gives a complete description of an actual working system, such that readers can implement all or part of the system. Engineers responsible for developing, maintaining of improving design and analysis systems can benefit greatly from this type of reference. The technology has become so complex and the role of computers so pervasive that about the only way this can be done today is to concentrate on a specific design and analysis system. The author provides practical methodology as well as the details needed to implement the suggested procedures.
Analysis of the Effects of Design Pressure Ratio Per Stage and Off-design Efficiency on the Operating Range of Multistage Axial-flow Compressors
Author: Melvyn SavagePublisher:
ISBN:
Category : Axial flow compressors
Languages : en
Pages : 40
Book Description
Multistage compressors composed of high-pressure-ratio stages have higher over-all off-design efficiencies and a wider operating range than those made up of low-pressure-ratio stages if the blade-row efficiency curves for the two cases are assumed to be somewhat similar.