Difference between revisions of "Tutorial"

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(Basics)
(Basics)
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=== Basics ===
 
=== Basics ===
  
<div class="toccolours mw-collapsible mw-collapsed" style="width:60em;">
+
<div class="toccolours mw-collapsible mw-expanded" style="width:60em;">
 
'''Input for 2D pin-cell geometry'''
 
'''Input for 2D pin-cell geometry'''
 
<div class="mw-collapsible-content">
 
<div class="mw-collapsible-content">
  <nowiki>% --- Simple 2D PWR pin-cell geometry for Serpent tutorial
+
  <span style="color: Green;">% --- Simple 2D PWR pin-cell geometry for Serpent tutorial
 
+
/************************
+
/************************
* Material definitions *
+
  * Material definitions *
************************/
+
  ************************/
 
+
% --- Fuel material (3.0 wt-% enriched uranium dioxide), density 10.1 g/cm3
+
% --- Fuel material (3.0 wt-% enriched uranium dioxide), density 10.1 g/cm3</span>
 
+
mat fuel    -10.1
+
<span style="color: Red;">mat</span> <span style="color: Blue;">fuel</span>     -10.1
92235.03c    -0.02644492
+
92235.03c    -0.02644492
92238.03c    -0.85505247
+
92238.03c    -0.85505247
8016.03c    -0.11850261
+
  8016.03c    -0.11850261
 
+
% --- Cladding material for fuel rod
+
<span style="color: Green;">% --- Cladding material for fuel rod
%    (100 % Zirconium)
+
%    (100 % Zirconium)</span>
 
+
mat clad    -6.55
+
<span style="color: Red;">mat</span> <span style="color: Blue;">clad</span>     -6.55
40000.03c    -1.0
+
40000.03c    -1.0
 
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% --- Water at 1.0 g/cm3
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<span style="color: Green;">% --- Water at 1.0 g/cm3</span>
 
+
mat water    -1.0
+
<span style="color: Red;">mat</span> <span style="color: Blue;">water</span>   -1.0
1001.03c    2.0
+
  1001.03c    2.0
8016.03c    1.0
+
  8016.03c    1.0
 
+
/************************
+
<span style="color: Green;">/************************
* Geometry definitions *
+
  * Geometry definitions *
************************/
+
  ************************/</span>
 
+
% --- Fuel pin structure
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<span style="color: Green;">% --- Fuel pin structure</span>
 
+
pin p1
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<span style="color: Red;">pin</span> <span style="color: Blue;">p1</span>
fuel    0.4025
+
<span style="color: Purple;">fuel</span>   0.4025
clad    0.4750
+
<span style="color: Purple;">clad</span>   0.4750
water
+
<span style="color: Purple;">water</span>
 
+
% --- Square surface with 1.0 cm side centered at (x,y) = (0,0)
+
<span style="color: Green;">% --- Square surface with 1.0 cm side centered at (x,y) = (0,0)</span>
 
+
surf s1 sqc 0.0 0.0 0.5
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<span style="color: Red;">surf</span> <span style="color: Blue;">s1</span> sqc 0.0 0.0 0.5
 
+
cell c1 0 fill p1  -s1
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<span style="color: Red;">cell</span> <span style="color: Blue;">c1</span> 0 fill <span style="color: Purple;">p1</span>   -<span style="color: Purple;">s1</span>
cell c2 0 outside    s1
+
<span style="color: Red;">cell</span> <span style="color: Blue;">c2</span> 0 outside    <span style="color: Purple;">s1</span>
 
+
/******************
+
<span style="color: Green;">/******************
* Run parameters *
+
  * Run parameters *
******************/
+
  ******************/</span>
 
+
% --- Neutron population
+
<span style="color: Green;">% --- Neutron population</span>
 
+
set pop 5000 100 20
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<span style="color: Red;">set pop</span> 5000 100 20
 
+
% --- Boundary condition (1 = black, 2 = reflective, 3 = periodic)
+
<span style="color: Green;">% --- Boundary condition (1 = black, 2 = reflective, 3 = periodic)</span>
 
+
set bc 2
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<span style="color: Red;">set bc</span> 2
 
+
% --- Geometry plots
+
<span style="color: Green;">% --- Geometry plots</span>
 
+
plot 3  200  200
+
<span style="color: Red;">plot</span> 3  200  200
plot 3 1000 1000 0.0 -2.5 2.5 -2.5 2.5
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<span style="color: Red;">plot</span> 3 1000 1000 0.0 -2.5 2.5 -2.5 2.5
 
+
% --- Cross section library file
+
<span style="color: Green;">% --- Cross section library file</span>
 
+
set acelib "xsdir0K"</nowiki>
+
<span style="color: Red;">set acelib</span> "xsdir0K"
 
</div>
 
</div>
 
</div>
 
</div>

Revision as of 14:14, 8 September 2017

This page is the beginning of a hands-on tutorial in Serpent that will walk you through the creation of simple pin-cell and assembly geometry models and the use of those models for some reactor physics simulations.

Pre-requisite

Compiled version of Serpent 2

Basics of Serpent input

Explain different (typical) parts such as:

  • Material definitions
  • Geometry definitions
  • Run parameters/options

2D Pin-cell model

Overview

Basics

Input for 2D pin-cell geometry

% --- Simple 2D PWR pin-cell geometry for Serpent tutorial

/************************
 * Material definitions *
 ************************/

% --- Fuel material (3.0 wt-% enriched uranium dioxide), density 10.1 g/cm3

mat fuel     -10.1
92235.03c    -0.02644492
92238.03c    -0.85505247
 8016.03c    -0.11850261

% --- Cladding material for fuel rod
%     (100 % Zirconium)

mat clad     -6.55
40000.03c    -1.0

% --- Water at 1.0 g/cm3

mat water    -1.0
 1001.03c     2.0
 8016.03c     1.0

/************************
 * Geometry definitions *
 ************************/

% --- Fuel pin structure

pin p1
fuel    0.4025
clad    0.4750
water

% --- Square surface with 1.0 cm side centered at (x,y) = (0,0)

surf s1 sqc 0.0 0.0 0.5

cell c1 0 fill p1   -s1
cell c2 0 outside    s1

/******************
 * Run parameters *
 ******************/

% --- Neutron population

set pop 5000 100 20

% --- Boundary condition (1 = black, 2 = reflective, 3 = periodic)

set bc 2

% --- Geometry plots

plot 3  200  200
plot 3 1000 1000 0.0 -2.5 2.5 -2.5 2.5

% --- Cross section library file

set acelib "xsdir0K"

Testing and tinkering

2D Assembly model

Overview

Basics

Testing and tinkering