Catalog Data

ME 425:Compressible Fluid Flow.  Credits 3.  Fundamentals of compressible fluid flow (gas dynamics) in relation to effects of area change (nozzles and diffusers), friction and heat interaction (Fanno, Rayleigh line and isothermal flow), combustion waves (deflagration, explosion and detonation waves), normal and oblique shock waves and their effects on flow properties (extended diffusers and supersonic airfoils).  Applications to flow through pipelines, subsonic, sonic and supersonic flights, turbomachinery and combustion.

Prerequisite: ME 311

Textbook

M. A. Saad, Compressible Fluid Flow, 2^nd Edition, Prentice-Hall, 1993.

References

1)

M. H. Aksel and O. C. Eralp, Gas Dynamics, Prentice-Hall, 1993.

2)

J. E. A. John, Gas Dynamics, 2^nd Edition, Allyn & Bacon, Inc., 1984.

3)

B. K. Hodge and K. Koenig, Compressible Fluid Dynamics, Prentice-Hall, 1995.

Objectives

This course aims to introduce basic principles and equations governing the steady and unsteady compressible fluid flow in one- and two-dimensions.  The fundamental needs to solve compressible fluid flow problems are given and practical applications are included.  Moreover, the design of nozzles and diffusers are introduced.

Pre/Co-Requisites

by Topic

1)

Fundamental laws of Thermodynamics (First and Second laws and entropy generation).

2)

Fundamentals of Fluid Mechanics and concept of boundary layer.

3)

Computer programming.

Course Outline

1)

Fluid properties and governing equations of compressible flow

6 Classes

2)

Speed of sound, Mach waves and classification of fluid flow

2 Classes

3)

One-dimensional compressible flow through a varying cross-sectional area (flow through nozzles and diffusers) and isentropic relations

6 Classes

4)

Normal shock waves governing equations, Prandtl, Rankine-Hugoniot relations, supersonic wind tunnels and moving shock waves

7 Classes

5)

Adiabatic frictional flow in a constant area duct (Fanno line flow), governing equations and frictional flow in a constant area duct preceded by an isentropic nozzle

6 Classes

6)

Flow with heat interaction and generalized flow (Rayleigh line flow), combustion waves and generalized flow

6 Classes

7)

Two-dimensional waves, governing equations, property relations, (two-dimensional oblique shock waves, detached shock waves and expansion waves), Prandtl-Meyer flow, and supersonic diffusers

 7 Classes

8)

Introduction to linearized flow

2 Classes

9)

Computer simulation of one-dimensional flow

4 Classes

Design Activities/Projects

Students are assigned designing projects during the teaching semester.  The projects are involved with the design of nozzles and diffusers for sonic and supersonic flows.

Computer Usage

Students are encouraged to use computers to tackle one-dimensional flow problems and design subsonic as well as supersonic nozzles and diffusers.

Evaluation Methods

1)

2)

3)

4)

Homework

Tests

Projects/Computer-oriented problems

Final Exams

Student Learning Outcome

1)

Students will demonstrate a basic understanding of laws of compressible flow in association with the compressible flow through enclosures as well as around aerodynamic objects.

2)

Students are expected to tackle compressible flow problems associated with industry.

3)

They are equipped with the technical knowledge to design some parts in the compressible flow systems.

ABET Category

Engineering Science

2.0 Credits

Engineering Design

1.0 Credits