scholarly journals On the One‐Dimensional Theory of Steady Compressible Fluid Flow in Ducts with Friction and Heat Addition

1947 ◽  
Vol 18 (10) ◽  
pp. 891-902 ◽  
Author(s):  
Bruce L. Hicks ◽  
Donald J. Montgomery ◽  
Robert H. Wasserman
Keyword(s):  
Fluid Flow ◽  
Compressible Fluid ◽  
Dimensional Theory ◽  
One Dimensional ◽  
Heat Addition ◽  
Compressible Fluid Flow ◽  
The One

Possible Flow Regimes of Adiabatic One-Dimensional Compressible Fluid Flow with Friction in Convergent and Divergent Ducts

1970 ◽  
Vol 185 (1) ◽  
pp. 925-930 ◽  
Author(s):  
A. R. Shouman ◽  
C. E. Garcia
Keyword(s):  
Fluid Flow ◽  
Analytical Solution ◽  
Friction Factor ◽  
Compressible Fluid ◽  
Flow Regimes ◽  
Dimensional Parameter ◽  
One Dimensional ◽  
Specific Heats ◽  
Compressible Fluid Flow ◽  
Half Angle

An analytical solution for the compressible one-dimensional flow in convergent and divergent ducts with friction is obtained. It is found that a non-dimensional parameter, N, can be formed using the friction factor, duct half-angle and the ratio of specific heats of the gas. Seven flow regimes are describable with the solution, based on certain bounds on the magnitude of N. The regimes are discussed and corollary data are presented graphically.

A New Thermodynamic Diagram for Representing Steady One-Dimensional Compressible Fluid Flow

1974 ◽  
Vol 16 (3) ◽  
pp. 192-195 ◽  
Author(s):  
C. R. Calladine
Keyword(s):  
Fluid Flow ◽  
Compressible Flow ◽  
Compressible Fluid ◽  
Specific Volume ◽  
Point Of View ◽  
Volume Versus ◽  
One Dimensional ◽  
Compressible Fluid Flow ◽  
Flow Through

A graph of specific volume versus velocity is useful for describing effects in steady, one-dimensional compressible fluid flow through a converging–diverging nozzle. From a thermodynamic point of view there is nothing new in the approach, but it may serve as a useful introduction to the characteristics of compressible flow – particularly the special conditions which prevail at the throat of a choked nozzle.

scholarly journals CFD tool application in predicting the behavior of a centrifugal fan designed by one-dimensional theory

2021 ◽  
Vol 10 (12) ◽  
pp. e412101219653
Author(s):  
Henrique Marcio Pereira Rosa ◽  
Gabriela Pereira Toledo
Keyword(s):  
Velocity Distribution ◽  
Cfd Simulation ◽  
Centrifugal Fan ◽  
Dimensional Theory ◽  
Recovery Coefficient ◽  
Characteristic Curves ◽  
One Dimensional ◽  
Ansys Cfx ◽  
Computational Fluid Dynamics Cfd ◽  
The One

Computational fluid dynamics (CFD) is the most current technology in the fluid flow study. Experimental methods for predicting the turbomachinery performance involve greater time consumption and financial resources compared to the CFD approach. The purpose of this article is to present the analysis of CFD simulation results in a centrifugal fan. The impeller was calculated using the one-dimensional theory and the volute the principle of constant angular momentum. The ANSYS-CFX software was used for the simulation. The turbulence model adopted was the SST. The simulation provided the characteristic curves, the pressure and velocity distribution, and the static and total pressure values at impeller and volute exit. An analysis of the behavior of the pressure plots, and the loss and recovery of pressure in the volute was performed. The results indicated the characteristic curves, the pressure and velocity distribution were consistent with the turbomachinery theory. The pressure values showed the static pressure at volute exit was smaller than impeller exit for some flow rate. It caused the pressure recovery coefficient negative.  This work indicated to be possible design a centrifugal fan applying the one-dimensional theory and optimize it with the CFD tool.

Sign in / Sign up

Export Citation Format

Share Document