InfoCoBuild

Gas Dynamics

Gas Dynamics. Instructor: Dr. T.M. Muruganandam, Department of Aerospace Engineering, IIT Madras. This course discusses topics in gas dynamics. Review of fundamentals: concepts from fluid mechanics, basic thermodynamic relations. Compressible flow: concept of waves in fluid, mach waves, compression waves, expansion waves. Basic flow features: isentropic flow, shock waves, stationary and moving shocks, oblique shocks, bow shocks, expansion fans. Example flows: flow around bodies, shock expansion method for flow over airfoils. Flow through a nozzle: convergent nozzles, CD nozzles, exit pressure variation vs stagnation pressure variation. Oblique shock wave reflections, Jet flows Under- and over-expanded flows shear layers. Flow with friction, friction choking. Flow with heat addition, thermal choking. Supersonic combustion. Shock tube, supersonic wind tunnel, flow visualization, supersonic probes. Design of nozzles, external flow around bodies. Experimental characteristics of airfoils in compressible flow. Unsteady flows. (from nptel.ac.in)

Lecture 15 - Moving Shocks, Solved Examples for Stationary Normal Shocks


Go to the Course Home or watch other lectures:

Lecture 01 - Compressibility and Thermodynamics
Lecture 02 - Thermodynamics
Lecture 03 - Thermodynamic Processes, Mass and Momentum Conservation Equations
Lecture 04 - Momentum and Energy Equations
Lecture 05 - Equations
Lecture 06 - Energy vs Momentum Equations, Pressure Waves in Gases
Lecture 07 - Pressure Waves in Gases
Lecture 08 - Communication in Gases, Stagnation State
Lecture 09 - Stagnation Properties, Differential form Equations for One Dimensional Flow, Isentropic Flow with Area Variation
Lecture 10 - Isentropic Flow with Area Variation
Lecture 11 - Normal Shock Concepts, Normal Shock Relations
Lecture 12 - Normal Shock Relations
Lecture 13 - Normal Shock Relations (cont.)
Lecture 14 - Normal Shock Relations, Moving Shocks
Lecture 15 - Moving Shocks, Solved Examples for Stationary Normal Shocks
Lecture 16 - Solved Examples for Stationary and Moving Shocks
Lecture 17 - Solved Numerical Examples for Moving Shocks
Lecture 18 - Solved Numerical Examples for Moving Shocks, Oblique Shock
Lecture 19 - Oblique Shock
Lecture 20 - Oblique Shock Relations
Lecture 21 - Oblique Shocks, Bow Shock
Lecture 22 - Detached Shocks, Oblique Shock Reflections, Numerical Examples
Lecture 23 - Shock-Shock Interactions, 1D Expansion Wave, Expansion Fans
Lecture 24 - Expansion Fan, Prandtl-Meyer Angle, Smooth Compressions, Prandtl-Meyer Function
Lecture 25 - Prandtl-Meyer Function, Numerical Examples, Shock-Expansion Theory
Lecture 26 - Prandtl-Meyer Function, Shock Expansion Theory and its Applications
Lecture 27 - Quasi-1D Flow with Area Variations, Choked Conditions
Lecture 28 - Quasi-1D Flow with Area Variations, Geometric Choking, Numerical Examples
Lecture 29 - Convergent Nozzle, Divergent Nozzle, Convergent-Divergent Nozzle
Lecture 30 - Convergent-Divergent Nozzle
Lecture 31 - Convergent-Divergent Nozzle Numerical Example, Multiple Choking Points
Lecture 32 - Supersonic Jet
Lecture 33 - Supersonic Jet, Numerical Examples
Lecture 34 - Supersonic Jet, Numerical Examples, Shear Layers Flow
Lecture 35 - Non-Isentropic Flows - Crocco's Theorem
Lecture 36 - Non-Isentropic Flows - Crocco's Theorem, Fanno Flow
Lecture 37 - Fanno Flow - Relations, Plots and Discussion about Choking
Lecture 38 - Fanno Flow - Numerical Examples
Lecture 39 - Non-Isentropic Flows - Rayleigh Flow
Lecture 40 - Rayleigh Flow - Relations, Plots and Discussion
Lecture 41 - Rayleigh Flow, Numerical Example; Non-Isentropic Flows - Various Choking Mechanisms in Compressible Flow, Supersonic Combustor Flow, Ram Jet Flow
Lecture 42 - Shock Tube
Lecture 43 - Shock Tube (cont.)
Lecture 44 - Compressible Flow Facilities
Lecture 45 - Compressible Flow Facilities (cont.)
Lecture 46 - Compressible Flow Facilities, Measurement Techniques for Compressible Flows, Experiment Design
Lecture 47 - High Speed Flow Visualisation
Lecture 48 - High Speed Flow Visualisation (cont.)
Lecture 49 - High Speed Flow Visualisation, Method of Characteristics
Lecture 50 - Directions, Constitutive Relations, Subroutines
Lecture 51 - Subroutines, Marching Techniques, Examples
Lecture 52 - 2D Method of Characteristics
Lecture 53 - Summary of Course, Unsteady Flow Phenomena
Lecture 54 - Unsteady Flow Phenomena Videos, MOC Simulations