Changes between Version 13 and Version 14 of u/erica/AccretionModelingBlog
- Timestamp:
- 03/20/18 19:37:26 (7 years ago)
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u/erica/AccretionModelingBlog
v13 v14 1 1 == Bondi Accretion == 2 3 === 3/18/2018 ===4 2 5 3 Am working on a 3D simulation of Bondi Flow onto a central sink particle and studying the accretion properties using the Krumholz accretion algorithm. … … 36 34 || $\dot{M}$ || 2692.17 || 37 35 36 == Research Log: == 37 38 === 3/18/18, $\gamma=7/5$, dynamical cases === 39 40 ==== Resolving sonic point ==== 41 42 ==== Not-resolving sonic point ==== 43 44 === 3/18/18, $\gamma=1.66$, steady-state case === 45 38 46 The case of $\gamma=5/3$ flow is an extreme limit for the solution space. This value of $\gamma$ has a few interesting features: 39 47 40 48 In other words, when $\gamma=5/3$ exactly, we have no accretion flow. 41 42 43 === Results ===44 ==== $\gamma=1.66$ case ====45 49 46 50 || $\gamma$ || 1.66 || … … 58 62 As the following images show, this set of conditions produces a steady state solution... Both the sonic point is not-resolved, as well as the solution is being stepped on where non-steady effects could happen due to effects of the accretion algorithm. The attached module files that produce these files are thus called "*_steadystate*" 59 63 60 || Mesh || [[Image(mesh_comparison.png, 25%)]] ||61 || Radial velocity || [[Image(vr.png, 25%)]] ||62 || Radial mach || [[Image(radial_mach.png, 25%)]] ||63 || Velocity field || [[Image(vec_comparison.png, 25%)]] ||64 || Isosurface (r=rsink) || [[Image(isosurface.png, 25%)]] ||65 || Mass flux (r=rsink) || [[Image(massflux.png, 25%)]] ||64 || Mesh || [[Image(mesh_comparison.png, 15%)]] || 65 || Radial velocity || [[Image(vr.png, 15%)]] || 66 || Radial mach || [[Image(radial_mach.png, 15%)]] || 67 || Velocity field || [[Image(vec_comparison.png, 15%)]] || 68 || Isosurface (r=rsink) || [[Image(isosurface.png, 15%)]] || 69 || Mass flux (r=rsink) || [[Image(massflux.png, 15%)]] || 66 70 67 71 == Library ==