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Fluid Dynamics for Astrophysics

Fluid Dynamics for Astrophysics

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mod10lec52 - Magnetohydrodynamics (MHD) : Magnetic flux-freezing

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mod10lec52 - Magnetohydrodynamics (MHD) : Magnetic flux-freezing

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Classroom Contents

Fluid Dynamics for Astrophysics

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  1. 1 Fluid Dynamics for Astrophysics
  2. 2 mod01lec01 - Introduction to the course
  3. 3 mod01lec02 - Continuum hypothesis, distribution function and stress-viscosity relation
  4. 4 mod01lec03 - Continuum hypothesis, distribution function and stress-viscosity relation - Recap
  5. 5 mod01lec04 - Fluid Kinematics
  6. 6 mod01lec05 - Fluid Kinematics - Recap
  7. 7 mod02lec06 - Conservation laws: Mass conservation and incomprehensibility
  8. 8 mod02lec07 - Conservation laws: Momentum conservation and Euler equation
  9. 9 mod02lec08 - Conservation laws - Recap
  10. 10 mod02lec09 - Potential flows
  11. 11 mod02lec10 - Bernoulli constant, its applications and voracity equation
  12. 12 mod03lec11 - Recap - Potential flows, Bernoulli constant and its applications
  13. 13 mod03lec12 - Voracity dynamics -- Kelvin's voracity theorem and Magus effect
  14. 14 mod03lec13 - Navier-Stokes equation
  15. 15 mod03lec14 - Navier-Stokes equation (contd.) and energy equation
  16. 16 mod03lec15 - Energy equation in a conservative form
  17. 17 mod03lec16 - Boundary conditions in Navier-Stokes equation, d'Alembert's paradox
  18. 18 mod03lec17 - Poiseuille flow, deriving viscosity from microscopics
  19. 19 mod04lec18 - Dimensionless numbers -- Mach number, Reynolds number
  20. 20 mod04lec19 - Dimensionless numbers
  21. 21 mod04lec20 - Reynolds number and dynamic similarity
  22. 22 mod04lec21 - Reynolds number recap, Low Re flows, and drag on a sphere (Stokes law)
  23. 23 mod04lec22 - High Re flows -- turbulent drag law, vortex shedding and drag crisis
  24. 24 mod05lec23 - Lift on a body, introduction to compressible flows
  25. 25 mod05lec24 - Compressible flows -- derivation of sound speed and dispersion relation
  26. 26 mod05lec25 - Subsonic and supersonic flows
  27. 27 mod05lec26 - Propagation of sonic information, shock tube problem and piston problem
  28. 28 mod05lec27 - Criterion for neglect of compressibility, method of characteristics
  29. 29 mod06lec28 - Shock thickness
  30. 30 mod06lec29 - Shock thickness recap, shock jump conditions
  31. 31 mod06lec30 - Shock jump conditions (contd), transonic 1D flows, converging/diverging channels
  32. 32 mod06lec31 - Coverging/diverging channels, de Laval nozzle and its application to astrophysical jets
  33. 33 mod06lec32 - Spherically symmetric transonic flows
  34. 34 mod06lec33 - Spherically symmetric transonic flows (contd)
  35. 35 mod07lec34 - Solar wind : Parker's solution
  36. 36 mod07lec35 - Solar wind : Modifications in Parker's solution
  37. 37 mod07lec36 - Spherical accretion onto a compact object : Eddington luminosity and accretion rate
  38. 38 mod07lec37 - Spherical accretion onto a compact object : Solutions for flow properties
  39. 39 mod07lec38 - Spherical accretion (contd), disk accretion--Roche lobe overflow
  40. 40 mod08lec39 - Disk accretion : Mass conservation and vertical hydrostatic equilibrium
  41. 41 mod08lec40 - Disk accretion : Removal of angular momentum, Shakura-Sunyaev viscosity parameter
  42. 42 mod08lec41 - Disk accretion : Viscous dissipation and the energy equation, two-temperature criterion
  43. 43 mod08lec42 -Particle acceleration in astrophysical settings:Shocks & non-thermal energy distribution
  44. 44 mod08lec43 - Particle acceleration in astrophysical settings : Diffusive shock acceleration
  45. 45 mod09lec44 - Spherical blast waves : Bomb explosion and supernova explosion
  46. 46 mod09lec45 - Spherical blast waves : Sedov -Taylor solution
  47. 47 mod09lec46 - Spherical blast waves : Sedov - Taylor solution (contd.)
  48. 48 mod09lec47 - Magnetohydrodynamics (MHD) : Introduction
  49. 49 mod09lec48 - Magnetohydrodynamics (MHD) : The induction equation
  50. 50 mod10lec49 - Magnetohydrodynamics(MHD):Currents in MHD, momentum equation and magnetic stress tensor
  51. 51 mod10lec50 - Magnetohydrodynamics (MHD) : Magnetic stresses and magnetic buoyancy
  52. 52 mod10lec51 - Magnetohydrodynamics (MHD): Plasma beta, force-free fields and potential configurations
  53. 53 mod10lec52 - Magnetohydrodynamics (MHD) : Magnetic flux-freezing
  54. 54 mod10lec53 - Magnetohydrodynamics (MHD) : Magnetic flux-freezing (contd.), magnetic dynamos
  55. 55 mod10lec54 - Magnetohydrodynamics (MHD) : Dynamo theory
  56. 56 mod11lec55 - Magnetohydrodynamics (MHD) : Waves in MHD - Alfven waves
  57. 57 mod11lec56 - Magnetohydrodynamics (MHD) : Waves in MHD - Alfven waves and magnetosonic waves
  58. 58 mod11lec57 - Magnetohydrodynamics (MHD) : Waves in MHD - Magnetosonic waves
  59. 59 mod11lec58 - Magnetohydrodynamics (MHD) : Shocks in MHD
  60. 60 mod11lec59 - Magnetohydrodynamics (MHD) : Shocks in MHD - Shock jump conditions
  61. 61 mod12lec60 - Non-ideal MHD : Introduction to magnetic reconnection
  62. 62 mod12lec61 - Non-ideal MHD : Magnetic reconnection - The Sweet-Parker model
  63. 63 mod12lec62 - Non-ideal MHD : Magnetic reconnection - The Petscheck model
  64. 64 mod12lec63 - Sun's atmosphere : Solar corona and the coronal heating problem
  65. 65 mod12lec64 - Solar eruptions : Coronal Mass Ejections (CMEs) and solar flares

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