/// <summary>
/// Constructor for the Solver
/// </summary>
/// <param name="sol_Tol">Convergence Residual</param>
/// <param name="myMesh">Mesh Object</param>
/// <param name="myBoundaryConditions">Boundary Condition object</param>
public Solver(double sol_Tol, Mesh myMesh, int current_time_step, int total_time_steps)
{
this.Nodes = myMesh.Node_Array;
this.sol_Tol = sol_Tol;
current_dt = current_time_step;
total_dt = total_time_steps;
// Assigns passed in mesh object to local mesh object
Solver_Mesh_Object = myMesh;
// Calls the Solve() function to use TDMA
Solve();
}
static void Main(string[] args)
{
Console.WriteLine(" ************************************************************************ ");
Console.WriteLine(" Welcome to the TEModel Program ");
Console.WriteLine(" ************************************************************************ ");
double max_Node_Position_Y = 0;
CSVHandler Get_Current_Profile = new CSVHandler();
List<double> Current_Profile = new List<double>();
Current_Profile = Get_Current_Profile.Read_Current_Profile();
// Can be used to iterate over a current of 1-5 A to the TEM module
// to construct steady-state temperature plots
for (int i = 0; i <= Current_Profile.Count - 1; i++)
{
// Time in seconds
double time = 55;
// Timestep in seconds, set to 9999999 for Steady State Solution
double timestep = 0.05;
//double timestep = 99999999;
// Required iterations, set to 1 for Steady State Solution
int req_iter = (int)(time / timestep);
//int req_iter = 1;
// Current Applied
//double current = 4;
//double current = (double)Current_Profile[i];
// Number of divisions specified in both the X and Y directions
// in order to form a more dense mesh (30-x, 30-y is mesh independent)
int divisions_X = 20;
int divisions_Y = 20;
// Creates object to write .CSV files for data output
CSVHandler csv = new CSVHandler();
// Creates the geometry object and calls the objects
// constructor which generates a list of Layer objects
// and a series of X and Y coordinates on which to draw
// the control volume lines.
TEMGeometry myGeom_Element = new TEMGeometry();
// Creating two lists (arrays) of doubles to hold the initial x and y positions
// of interest from the geometry file
List<double> InitialX = new List<double>();
List<double> InitialY = new List<double>();
// Sets InitialX and InitialY to the array of x and y positions which are
// output from the geometry class for the TEM (or any other imported class)
InitialX = myGeom_Element.x_array.ToList();
InitialY = myGeom_Element.y_array.ToList();
// Initializes all the material names and thermophysical properties
Material_Initializer myMaterials = new Material_Initializer();
// Creates mesh based on the number of divisions and initial coordinates
// in both the x and y direction. Also requires a list of layers, materials
// and an input current for initialization of the source terms
// Mesh mesh = new Mesh(InitialX, InitialY, divisions_X, divisions_Y, myGeom_Element.Layer_List, myMaterials.Material_List, Current_Profile[0], timestep);
// Writes the mesh information (to be plotted in MatLAB) to a .CSV file
// csv.WriteMesh(mesh.Node_Array);
Mesh mesh = new Mesh(InitialX, InitialY, divisions_X, divisions_Y, myGeom_Element.Layer_List, myMaterials.Material_List, Current_Profile[0], timestep);
// Finds highest Y value and assigns it to Max_Node_Position_Y
foreach (Node node in mesh.Node_Array)
{
if (node.y_Position >= max_Node_Position_Y)
{
max_Node_Position_Y = node.y_Position;
}
}
Console.WriteLine("Max Node Position (Y) : " + max_Node_Position_Y.ToString());
List<double> Temperaturevst = new List<double>();
foreach (Node node in mesh.Node_Array)
{
node.T = 255.0;
node.T_Past = 255.0;
}
// t < req_iter
for (int t = 0; t < Current_Profile.Count; t++)
{
Console.WriteLine("Applied Current for time step " + t.ToString() + " is " + Current_Profile[t].ToString());
double current = ((Current_Profile[t]));
mesh.Set_Source_Terms(Current_Profile[t]);
mesh.Initialize_Influence_Coefficients(timestep);
// Creates object which applies the boundary conditions to the node array,
// boundary conditions are specified WITHIN the BoundaryCondition.cs file
BoundaryCondition myBoundaries = new BoundaryCondition(mesh.Node_Array, timestep);
// Solves the temperature field for the given time-step and current
Solver mySolver = new Solver(0.0001f, mesh, t, Current_Profile.Count);
// Writes the temperature field, and midline temperature through a BiTE element.
//csv.Write_Temperature_Field(mesh.Node_Array, ((t * timestep)).ToString("N2") + "_" + current);
//csv.Write_Mid_Field(mesh.Node_Array, ((t * timestep)).ToString("N2") + "_" + current);
double average_T = 0;
int Ceramic_Nodes = 0;
foreach (Node node in mesh.Node_Array)
{
node.T_Past = node.T;
node.res = 200;
if (node.y_Position > 0.0025 && node.y_Position <= 0.003 && node.Material == "Ceramic")
{
average_T = average_T + node.T;
Ceramic_Nodes++;
}
}
average_T = (average_T / (double)Ceramic_Nodes) - 273.15;
Console.WriteLine("Average T: " + average_T + " from an averaged value for " + Ceramic_Nodes + " nodes.");
Temperaturevst.Add(average_T);
}
csv.Write_Temperature_Versus_Time(Temperaturevst);
}
Console.WriteLine("Finished...");
Console.ReadLine();
}