This document provides information about the Gas Dynamics course for mechanical engineering students. The course covers topics like the steady flow energy equation, entropy relation, continuity equation, Bernoulli's equation, momentum equation, Mach number and its significance, Mach waves, Mach cone and Mach angle, and normal shock waves. It also covers flow in a constant area duct with friction and heat transfer. Applications of gas dynamics include steam and gas turbines, high-speed aerodynamics, high-speed turbo compressors, jet, rocket and missile propulsion, and transonic, supersonic and hypersonic flow. The studies in gas dynamics are relevant to gases flowing at speeds comparable to or exceeding the speed of sound, causing changes in temperature and pressure.

1. B.E –III (Mechanical)
Semester – VI
Subject Code: 3161912
Subject Name: Gas Dynamics
(Professional Elective- I)
Related Topics : Gas turbines and Rocket
Propulsions , compressible Fluid flow
Prerequisite: Applied thermodynamics
Basics of Mechanical Engineering

3. Gas dynamics consists of
Steady flow energy equation, entropy
relation, continuity equation,
Bernoulli’s equation, momentum
equation
Mach number and its significance,
Mach waves, Mach cone and Mach
angle,
Normal shock Waves
Flow in constant area duct with
friction and heat transfer

4. Applications of
Gas Dynamics
Used in steam and Gas turbines
High speed aerodynamics
High speed turbo compressors
Jet, rocket and missile propulsion
Transonic, supersonic and hypersonic flow

5. Relevance of
Course
The studies in gas dynamics are often defined
with gases flowing around or within physical
object at speeds comparable to or exceeding
the speed of sound and causing a significant
change in temperature and pressure
Some examples of these studies include choked
flow in nozzles ,shock waves around jets and flows
of gas fuel within a jet engine.
 Gas dynamics is synonymous with aerodynamics
when the gas field is air and the subject of study is
flight.
It is highly relevant in the design of aircraft and
spacecraft and their respective propulsion systems.