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- | ====== TALENT ====== | + | ====== EXERCISES ====== |
- | ===== Training in Advanced Low Energy Nuclear Theory: EXERCISES ===== | + | **[[RXNnetworkEX|Reaction Networks]]**, **[[NuclPhysInput|Nucl Physics Input]]**, **[[HydroEX|Hydro]]**, **[[BBNEX|BBN]]** |
- | [[http://www.nucleartalent.org|{{:talent.png?650|Nuclear TALENT}}]] | + | |
- | **[[RXNnetworkEX|Reaction Networks]]**, **[[HydroEX|Hydrodynamics]]**, **[[BBNEX|BBN]]**, **[[AnlyPlot|Abundances, Analysis and Plotting]]**, **[[NuclPhysInput|Nucl Physics Input]]** | + | |
- | ==== Reaction Network Exercises ==== | + | |
<box 80% left orange|**(Pre-Course Assignment)**> | <box 80% left orange|**(Pre-Course Assignment)**> | ||
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**Download, compile and run the Reaction Network Code** | **Download, compile and run the Reaction Network Code** | ||
- | - Download the [[|Reaction Network Code]]. | + | - Download the [[rxnnetcode|Reaction Network Code]]. |
- | - Compile the code with your fortran90 compiler. | + | - Compile the code with your fortran90 compiler, following the instructions in doc/Compiling.txt in the XNet distribution. |
- | - Report in the Reaction Network Code discussion thread your success with machine information. | + | - Report in the Reaction Network Code discussion thread your success with machine and compiler information. |
- | - Read and set up code to run at fixed temperature and density | + | - Run a first test problem, following the instructions in doc/Running.txt in the XNet distribution. |
- | * Try various temperatures and densities | + | * Your results should look like this figure. {{:XNet_test.png?direct&200}} |
- | * Try different initial compositions | + | - Try various temperatures and densities by changing the th_const file. |
- | * Do you reach an equilibrium compostition at late times? | + | |
- | * Is it Nuclear Statistical Equilibrium (NSE)? | + | |
- | * Is it Quasi-Static Equilibrium (QSE)? | + | |
- | * What is the difference? | + | |
</box> | </box> | ||
- | |||
- | <box 80% left blue|**(During-Course Assignment)**> | ||
- | |||
- | **Run a reaction network with given nuclear input for:** | ||
- | |||
- | - Fixed temperature and density | ||
- | * Try various temperatures and densities | ||
- | * Try different network sizes | ||
- | * Swap out a reaction rate with a different version | ||
- | * Vary initial composition (X, Y, Z or Ye) | ||
- | * Let evolve until Nuclear Statistical Equilibrium is reached | ||
- | - Temperature/density trajectories | ||
- | |||
- | * $ T(t) = T(0)\exp{(-t/\tau)} $ or $\ T(t) = T(0)(1+\frac{t}{n\tau})^{-n} $ | ||
- | |||
- | * $ [1.+f_{\nu}(T(0))]\rho (t) = \rho (0) [1.+f_{\nu}(T(t))](T(t)/T(0))^3$ | ||
- | * How do initial conditions affect the resulting nucleosynthesis | ||
- | * How does the trajectory form affect the results? | ||
- | </box> | ||
~~DISCUSSION|Reaction Network Exercises Discussion~~ | ~~DISCUSSION|Reaction Network Exercises Discussion~~ |