Computation of Coupled Unsteady Gas Flow Compressor/Turbine Rotational Dynamics in a High By-Pass-Ratio Three-Shaft Turbofan

2008 ◽  
Author(s):  
Joe Iannelli
Keyword(s):  
Gas Flow ◽  
Rotational Dynamics ◽  
Flow Compressor ◽  
Unsteady Gas Flow

scholarly journals A Method for Generating Approximate Similarity Solutions of Nonlinear Partial Differential Equations

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Mazhar Iqbal ◽  
M. T. Mustafa ◽  
Azad A. Siddiqui
Keyword(s):  
Gas Flow ◽  
Numerical Solutions ◽  
Nonlinear Partial Differential Equations ◽  
Initial Boundary ◽  
Initial Boundary Value Problem ◽  
Similarity Solutions ◽  
Standard Application ◽  
Approximate Similarity ◽  
Initial Boundary Value ◽  
Unsteady Gas Flow

Standard application of similarity method to find solutions of PDEs mostly results in reduction to ODEs which are not easily integrable in terms of elementary or tabulated functions. Such situations usually demand solving reduced ODEs numerically. However, there are no systematic procedures available to utilize these numerical solutions of reduced ODE to obtain the solution of original PDE. A practical and tractable approach is proposed to deal with such situations and is applied to obtain approximate similarity solutions to different cases of an initial-boundary value problem of unsteady gas flow through a semi-infinite porous medium.

Nonisothermal Unsteady Gas Flow in a Coupled Reservoir-Wellbore System

1991 ◽  
Author(s):  
S.G. Dias ◽  
A.C. Bannwart ◽  
K.V. Serra
Keyword(s):  
Gas Flow ◽  
Unsteady Gas Flow

1810 Development of Unsteady Gas Flow Generator for Breathing Reproduction

2008 ◽  
Vol 2008.2 (0) ◽  
pp. 143-144
Author(s):  
Tatsuya FUNAKI ◽  
Kenji KAWASHIMA ◽  
Toshiharu KAGAWA
Keyword(s):  
Gas Flow ◽  
Flow Generator ◽  
Unsteady Gas Flow

An Experimental and Predictive Evaluation of Unsteady Gas Flow through Automotive Catalyst Elements

2005 ◽  
Author(s):  
G. Mccullough ◽  
R. Douglas ◽  
S. Spence ◽  
G. Cunningham ◽  
M. Mcmackin ◽  
...  
Keyword(s):  
Gas Flow ◽  
Automotive Catalyst ◽  
Flow Through ◽  
Unsteady Gas Flow

Some unique features of supersonic unsteady gas flow around bodies

1969 ◽  
Vol 1 (4) ◽  
pp. 20-24 ◽  
Author(s):  
O. Yu. Polyanskii
Keyword(s):  
Gas Flow ◽  
Unsteady Gas Flow

Research Note: An Alternative Scheme to Solve the Equations for Unsteady Gas Flow

1976 ◽  
Vol 18 (3) ◽  
pp. 161-166
Author(s):  
J. F. T. MacLaren ◽  
A. B. Tramschek ◽  
O. F. Pastrana ◽  
A. Sanjines
Keyword(s):  
Mathematical Models ◽  
Gas Flow ◽  
Method Of Characteristics ◽  
Research Note ◽  
Alternative Scheme ◽  
Flow Equations ◽  
The Method Of Characteristics ◽  
Unsteady Gas Flow ◽  
Engine Systems

A scheme which combines the ‘leap-frog’ method and the method of characteristics was found to be an efficient way to solve the unsteady gas flow equations which form the basis of mathematical models of compressor or engine systems.

scholarly journals The flows structure in unsteady gas flow in pipes with different cross-sections

2017 ◽  
Vol 159 ◽  
pp. 00035 ◽  
Author(s):  
Leonid Plotnikov ◽  
Alexandr Nevolin ◽  
Dmitrij Nikolaev
Keyword(s):  
Cross Sections ◽  
Gas Flow ◽  
Unsteady Gas Flow
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