Course11210831643 lectures
Optical Methods for Solid and Fluid Mechanics
Prof. Aloke Kumar and Prof. Koushik Viswanathan · IISc Bangalore
About
Course dealing with use of optical methods for quantification of fluid and solid mechanics phenomena. On the fluid mechanics front, the course will focus primarily on fluid flow visualization and quantification. Techniques discussed will include shadowgraphy, particle tracking velocimetry (PTV) and particle imaging velocimetry (PIV). The section on solid mechanics will cover a range of methods, including strain field visualization using Digital Image Correlation (DIC), stress measurements using photoelasticity and volumetric imaging using tomography.
Intended audience: Final year undergraduate students in engineering; PG & PHD students wanting to specialize in experimental methods in fluid and solid mechanics
Prerequisites: Not required, but background in fluid and solid mechanics and optics can be helpful.
Lectures
Week 1 Introduction and Mathematical Preliminaries
- Introduction
- Mathematical Preliminaries I
- Tensors and Deformations
- Lagrangian and Eulerian Perspectives
- Mathematical Preliminaries II
Week 2 Image Processing Preliminaries and Light Matter Interaction
- Image Processing Preliminaries
- Image Processing Operations
- Light Matter Interaction I
- Lab Demo I: Optical Microscope
- Optical System: Lenses
- Lab Demo II: Lenses and Camera
- Light Matter Interaction II(Lab Demostration)
- Light Matter Interaction II(Lab Demostration)
Week 3 PIV and PTV Introduction
- Tracer Particles for Flow Visualisation
- Particle Tracking Velocimetry
- Particle Image Velocimetry I
- Particle Image Velocimetry II
- Particle Image Velocimetry III
Week 4 PIV and Other Methods
- Particle Image Velocimetry IV
- Particle Image Velocimetry V
- Particle Image Velocimetry VI
- Schlieren and Shadowgraphy
- Lab Demo III: PIV and Schlieren
Week 5 Digital Image Correlation module
- Introduction to optical methods for solids
- Basics of Digital Image Correlation
- Iterative implementation of DIC
- Example implementations
- How is a DIC experiment set up?
Week 6 Digital Image Correlation module And Photoelasticity module
- DIY(C)!
- Introduction to Photoelasticity
- Why do we see fringes?
- How does light interact with matter?
- Origin of Birefringence
Week 7 Photoelasticity module And Optical tomography module
- Loaded sample in a polarizer
- Stress-induced birefringence
- Analyses of optical paths using matrix methods
- Putting it all together
- What is tomography?
Week 8 Optical tomography module
Syllabus and materials
At NPTEL, as the course publishes them.
Credits and licence
- Institution
- IISc Bangalore
- Department
- Mechanical Engineering
- Taught by
- Prof. Aloke Kumar, Prof. Koushik Viswanathan
- Level
- Undergraduate
- Language
- English
- Subjects
- Engineering
- Source
- NPTEL
- Licence
- CC BY-NC-SA, as NPTEL states it. Non-commercial use only. NPTEL's terms
- Attribution
- NPTEL states: "Distributed under Creative Commons Attribution-ShareAlike / CC BY - NC - SA", beside a BY-NC-SA badge.
- Who can watch
- NPTEL gives no rating. Invisible Network shows it to Tweens profiles and older, judged from what the source says about it. How courses are placed