Author: Michael R. Vanco
Publisher:
ISBN:
Category :
Languages : en
Pages : 44
Book Description
Computer Program for Design-point Performance of Turbojet and Turbofan Engine Cycles
Author: Michael R. Vanco
Publisher:
ISBN:
Category :
Languages : en
Pages : 44
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 44
Book Description
Computer Program for the Design and Off-design Performance of Turbojet and Turbofan Engine Cycles
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 92
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 92
Book Description
GENENG
Author: Robert W. Koenig
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 172
Book Description
A computer program titled GENENG is described. The program uses component performance maps to enable the user to do analytical steady-state engine cycle calculations. Through a scaling procedure, each of the component maps can be used to represent a family of maps (different design values of pressure ratios, efficiency, weight flow, etc. ). Either convergent or convergent divergent nozzles may be used. Included is a complete FORTRAN IV listing of the program. Sample results and input explanations are shown for one-spool and two-spool turbojets and two-spool separate and mixed-flow turbofans operating at design and off-design conditions. The computer program is available from the authors.
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 172
Book Description
A computer program titled GENENG is described. The program uses component performance maps to enable the user to do analytical steady-state engine cycle calculations. Through a scaling procedure, each of the component maps can be used to represent a family of maps (different design values of pressure ratios, efficiency, weight flow, etc. ). Either convergent or convergent divergent nozzles may be used. Included is a complete FORTRAN IV listing of the program. Sample results and input explanations are shown for one-spool and two-spool turbojets and two-spool separate and mixed-flow turbofans operating at design and off-design conditions. The computer program is available from the authors.
Simplified Design Point Performance Model of a Dry Turbofan Engine Cycle
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 28
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 28
Book Description
COSMIC
Author: United States. National Aeronautics and Space Administration
Publisher:
ISBN:
Category : Computer programs
Languages : en
Pages : 168
Book Description
Publisher:
ISBN:
Category : Computer programs
Languages : en
Pages : 168
Book Description
Computer Program Abstracts
Author:
Publisher:
ISBN:
Category : Computer programs
Languages : en
Pages : 650
Book Description
Publisher:
ISBN:
Category : Computer programs
Languages : en
Pages : 650
Book Description
Scientific and Technical Aerospace Reports
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1370
Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1370
Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
COSMIC Software Catalog
Author:
Publisher:
ISBN:
Category : Computer software
Languages : en
Pages : 444
Book Description
Publisher:
ISBN:
Category : Computer software
Languages : en
Pages : 444
Book Description
SIMULATION OF TURBOFAN ENGINE. PART 1. DESCRIPTION OF METHOD AND BALANCING TECHNIQUE.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 38
Book Description
The report describes a digital computer program titled SMOTE (simulation of Turbofan Engine). SMOTE is a computer program for balancing-cycle turbofan engines capable of running both design and off-design points. Component performance maps are reduced to Block Data (tabular form) to provide a base for calculating component performance. The design point is run first and map correction factors are calculated to scale the components to the desired performance. These correction factors are then applied to the component performance maps at off-design points. Initially, when the program is running at an off-design point, the cycle is not balanced, and errors (for example, work required by the compressor minus work supplied by the turbine) are generated. Small changes in engine independent variables (for example, compressor speed) then produce small changes in the errors, and these differential changes are loaded into a matrix. The matrix is then solved for the set of independent variables which results in zero errors, thus balancing the cycle. Actually, this process may be repeated several times before it reaches a balanced point because there is a non linear relationship between the independent variables and the errors. Sample results are included in the report.
Publisher:
ISBN:
Category :
Languages : en
Pages : 38
Book Description
The report describes a digital computer program titled SMOTE (simulation of Turbofan Engine). SMOTE is a computer program for balancing-cycle turbofan engines capable of running both design and off-design points. Component performance maps are reduced to Block Data (tabular form) to provide a base for calculating component performance. The design point is run first and map correction factors are calculated to scale the components to the desired performance. These correction factors are then applied to the component performance maps at off-design points. Initially, when the program is running at an off-design point, the cycle is not balanced, and errors (for example, work required by the compressor minus work supplied by the turbine) are generated. Small changes in engine independent variables (for example, compressor speed) then produce small changes in the errors, and these differential changes are loaded into a matrix. The matrix is then solved for the set of independent variables which results in zero errors, thus balancing the cycle. Actually, this process may be repeated several times before it reaches a balanced point because there is a non linear relationship between the independent variables and the errors. Sample results are included in the report.
Government-wide Index to Federal Research & Development Reports
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1470
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1470
Book Description