Learn · Introduction to Astrophysical Fluids
Lecture 56 of 57Week 12
Lecture 56: Introduction to astrophysical dynamos
Prof. Supratik Banerjee · IIT Kanpur
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- From
- Introduction to Astrophysical Fluids, IIT Kanpur (at NPTEL)
- Licence
- CC BY-NC-SA, as NPTEL states it. Non-commercial use only.
- Attribution
- NPTEL states: "Distributed under Creative Commons Attribution-ShareAlike / CC BY - NC - SA", beside a BY-NC-SA badge.
- Who can watch
- Tweens profiles and older. How courses are placed
All the lectures
- Lecture 1: General introduction
- Lecture 2: Phase space and Liouville's theorem
- Lecture 3: Collisionless Boltzmann equation
- Lecture 4: Boltzmann equation for collisional system I
- Lecture 5: Boltzmann equation for collisional system II
- Lecture 6: Equilibrium distribution function I
- Lecture 7: Equilibrium distribution function II
- Lecture 8: Derivation of moment equations I
- Lecture 9: Derivation of moment equations II
- Lecture 10: Application of moment equations in collisionless systems
- Lecture 11 : Derivation of ideal fluid equations
- Lecture 12: Macroscopic forces on an ideal fluid
- Lecture 13: Properties of ideal fluid
- Lecture 14: Kevin's vorticity theorem
- Lecture 15: Conservative form and invariants in ideal fluids
- Lecture 16: Steady flow, streamlines and stream function
- Lecture 17: Departure from Maxwellian distribution
- Lecture 18: Derivation of real fluid equations
- Lecture 19: Hydrostatics: Model of solar corona
- Lecture 20: Stellar/solar wind
- Lecture 21: Accretion disks I
- Lecture 22: A small digression: Newtonian fluids
- Lecture 23: Accretion disk II
- Lecture 24: Weak perturbation in a compressible fluid: sound wave
- Lecture 25: Effect of nonlinearity: shocks
- Lecture 26: Supernova explosion and spherical blast waves I
- Lecture 27: Supernova explosion and spherical blast waves II
- Lecture 28: de Laval nozzle and extragalactic jets
- Lecture 29: Convective instability and Swarzschild stability criterian
- Lecture 30: Rayleigh Benard convection I
- Lecture 31: Rayleigh Benard convection II
- Lecture 32: Jeans instability
- Lecture 33: Waves and instabilities in a two-fluid interface I
- Lecture 34: Waves and instabilities in a two-fluid interface II
- Lecture 35: Oscillations of stars
- Lecture 36: Oscillation of stars (contd.)
- Lecture 37: Rotation in astrofluids and Rayleigh criterion
- Lecture 38: Fluid dynamics in a rotating frame of reference
- Lecture 39: Vorticity theorem in rotating frame and Taylor-Proudman theorem
- Lecture 40: Effect of rotation on a self gravitating mass
- Lecture 41: Effect of rotation in stars
- Lecture 42: Introduction to Plasmas
- Lecture 43: Description of Plasma
- Lecture 44: Kinetic to fluid picture of plasmas
- Lecture 45: MHD fluids: magnetic pressure, magnetic tension and plasma beta
- Lecture 46: Inviscid invariants in MHD
- Lecture 47: Inviscid invariants in MHD (Contd.)
- Lecture 48: Elsasser variables in MHD
- Lecture 49: Linear wave modes in MHD
- Lecture 50: MHD in space plasmas
- Lecture 51: Introduction to turbulence in fluids
- Lecture 52: Richardson-Kolmogorov phenomenology of turbulence
- Lecture 53: Turbulent diffusion
- Lecture 54: Turbulent viscosity
- Lecture 55: Turbulence in MHD fluids
- Lecture 56: Introduction to astrophysical dynamos
- Lecture 57: Anti-dynamo theorem and turbulent dynamos