AO4011 Gas Dynamics Syllabus:

AO4011 Gas Dynamics Syllabus – Anna University PG Syllabus Regulation 2021

COURSE OBJECTIVES:

This course will enable the students
1. To gain insights into the steady one-dimensional fluid flow, its model and tool to solve the fluid flow problems.
2. To acquire knowledge about the normal shock waves.
3. To acquire knowledge about the oblique shock and expansion waves.
4. To gain knowledge about the basic measurements involved in compressible flows.
5. To acquire basic knowledge about the rarefied and high temperature gas dynamics.

UNIT I STEADY ONE-DIMENSIONAL FLOW

Thermodynamics of Fluid Flow – First Law of Thermodynamics – The Second Law of Thermodynamics – Thermal and Calorical Properties – Perfect Gas – Wave Propagation – Velocity of Sound – Subsonic and Supersonic Flows – Fundamental Equations – Discharge from a Reservoir – Stream tube Area-Velocity Relation – De Laval Nozzle – Supersonic Flow Generation – Diffusers – Dynamic Head Measurement in Compressible Flow – Pressure Coefficient.

UNIT II NORMAL SHOCK WAVES

Introduction – Equations of Motion for a Normal Shock Wave – The Normal Shock Relations for a Perfect Gas – Change of Stagnation or Total Pressure across the Shock- Hugoniot Equation – The Propagating Shock Wave – Reflected Shock Wave – Centered Expansion Wave – Shock Tube.

UNIT III OBLIQUE SHOCK AND EXPANSION WAVES

Introduction – Oblique Shock Relations – Relation between θ and β- Shock Polar – Supersonic Flow over a Wedge – Weak Oblique Shocks – Supersonic Compression – Supersonic Expansion by Turning – The Prandtl-Meyer Expansion – Simple and Non-simple Regions.

UNIT IV MEASUREMENTS IN COMPRESSIBLE FLOW

Introduction – Pressure Measurements – Temperature Measurements – Velocity and Direction – Density Problems – Compressible Flow Visualization – High-Speed Wind Tunnels – Instrumentation and Calibration of Wind Tunnels.

UNIT V INTRODUCTION TO RAREFIED AND HIGH TEMPERATURE GAS DYNAMICS

Knudsen Number – Slip Flow Transition and Free Molecule Flow – Importance of High Temperature Flows – Nature of High-Temperature Flows.

TOTAL: 45 PERIODS

COURSE OUTCOMES:

Upon completion of this course, students will
CO1: Be able to solve the steady one dimensional compressible fluid flow problems.
CO2: Be provided with the knowledge on thermodynamic state of the gas behind normal shock waves.
CO3: Be provided with the knowledge on thermodynamic state of the gas behind oblique shock waves and expansion waves.
CO4: Be provided with the adequate knowledge on compressible flow measurements.
CO5: Be provided with the basic knowledge on rarefied and high temperature gas dynamics.

REFERENCES:

1. J.D. Anderson, Fundamentals of Aerodynamics, McGraw-Hill Education, 6th edition, 2017.
2. Rathakrishnan. E., Gas Dynamics, Prentice Hall of India, 7th edition, 2020.
3. Shapiro, AH, “Dynamics & Thermodynamics of Compressible Fluid Flow”, Ronald Press, 1982.
4. Houghton, EL and Caruthers, NB,“ Aerodynamics for Engineering Students”, Butterworth- Heinemann Series, 7th Edition 2017.
5. Zucrow, M.J, and Anderson, J.D, “Elements of gas dynamics” McGraw-Hill Book Co., New York, 1989.
6. Rae, WH and Pope, A, “Low speed Wind Tunnel Testing”, John Wiley Publications, 3rd edition,
1999.