This shows you the differences between two versions of the page.
Both sides previous revision Previous revision Next revision | Previous revision | ||
rxnnetworkex [2014/05/02 09:57] cyburt |
rxnnetworkex [2014/05/29 08:24] (current) cyburt |
||
---|---|---|---|
Line 1: | Line 1: | ||
- | ====== 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]], [[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 find Nuclear Statistical Equilibrium (NSE) or Quasi-Static Equilibrium (QSE) at late times? | ||
- | |||
- | </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 31: | 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+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 41: | 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~~ |