rxnnetworkex
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rxnnetworkex [2014/05/05 12:39] cyburt |
rxnnetworkex [2014/05/29 08:24] (current) cyburt |
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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|Nuclear Physics Input]] | + | |
| - | ==== Reaction Network Exercises ==== | + | |
| - | <box 80% left orange|**(Pre-Course Assignment)**> | + | <box 80% left blue|**(During-Course Assignment)**> |
| - | **Download, compile and run the Reaction Network Code** | + | - Make sure everyone got the pre-test done and correct. |
| + | - Re-run the pre-test, reducing the temperature in the thermodynamic file | ||
| + | * Find the minimum temperatures at which silicon burning, oxygen burning and carbon burning occur. | ||
| + | - Grab a new (larger, 150 species) sunet_sn150.txt from the document server. | ||
| + | * Rename sunet_150.txt to sunet | ||
| + | * Build a new Data directory from REACLIB | ||
| + | * Create a new initial abundance file (matching the composition in the pretest) | ||
| + | * Run same test problem with new network | ||
| + | * Compare results to pre-test. | ||
| + | * Compare timing of pre-test to new problem. | ||
| - | - Download the [[|Reaction Network Code]]. | ||
| - | - Compile the code with your fortran90 compiler. | ||
| - | - Report in the Reaction Network Code discussion thread your success with machine information. | ||
| - | - Read and set up code to run at fixed temperature and density | ||
| - | * Try various temperatures and densities | ||
| - | * Try different initial compositions | ||
| - | * 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 80% left blue|**(During-Course Assignment)**> | ||
| + | Additional possibilities: | ||
| + | |||
| **Run a reaction network with given nuclear input for:** | **Run a reaction network with given nuclear input for:** | ||
| - Fixed temperature and density | - Fixed temperature and density | ||
| - | * Try various temperatures and densities | + | * Try various temperatures and densities |
| * Try different network sizes | * Try different network sizes | ||
| * Swap out a reaction rate with a different version | * Swap out a reaction rate with a different version | ||
| Line 34: | Line 28: | ||
| - Temperature/density trajectories | - Temperature/density trajectories | ||
| - | * $ T(t) = T(0)\exp{(-t/\tau)} $ | + | * $ T(t) = T(0)\exp{(-t/\tau)} $ or $\ T(t) = T(0)(1+\frac{t}{n\tau})^{-n} $ |
| - | * or $ T(t) = \frac{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$ |
| - | + | ||
| - | * $ \rho (t) = \rho (0) [1.+f_{\nu}(T(t))](T(t)/T(0))^3$ | + | |
| Line 44: | Line 36: | ||
| * How does the trajectory form affect the results? | * How does the trajectory form affect the results? | ||
| </box> | </box> | ||
| + | <box 80% left orange|**(Pre-Course Assignment)**> | ||
| + | |||
| + | **Download, compile and run the Reaction Network Code** | ||
| + | |||
| + | - Download the [[rxnnetcode|Reaction Network Code]]. | ||
| + | - 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 and compiler information. | ||
| + | - Run a first test problem, following the instructions in doc/Running.txt in the XNet distribution. | ||
| + | * Your results should look like this figure. {{:XNet_test.png?direct&200}} | ||
| + | - Try various temperatures and densities by changing the th_const file. | ||
| + | |||
| + | </box> | ||
| + | |||
| + | |||
| + | |||
| + | |||
| ~~DISCUSSION|Reaction Network Exercises Discussion~~ | ~~DISCUSSION|Reaction Network Exercises Discussion~~ | ||
rxnnetworkex.1399307951.txt.gz · Last modified: 2014/05/05 12:39 by cyburt
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