Final updates, removing comments etc

Author: Bojan Grenko

model_funcs.py

@@ -3291,8 +3291,6 @@ def T_wall_func_steady(self, T_wall, C_near_wall, T_near_wall, u_s, *args, **kwa
 
             # Total delta T 
             dT = (Q_ax + Q_gen)/Q_rad_factor  #/ (rho_tube_jh*cp_tube_jh)
-            # Clip to avoid massive fluxes while the simulation stabilizes
-            # dT = np.clip(dT, -30, 30) 
 
             # Calculate new wall T profile
             wall_T_profile = (T_near_wall + dT).flatten()

simulation_setup.json

@@ -33,7 +33,7 @@
 	"single tube length [m]": 1,
 	"single tube inner diameter [m]": 0.02,
 
-	"single tube wall thickness [m]": 0.005,
+	"single tube wall thickness [m]": 0.002,
 	"material density [kg m-3]": 7100,
 	"material thermal conductivity [W m-1 K-1]": 11,
 	"material specific heat capacity [J kg-1 K-1]": 460
@@ -52,7 +52,7 @@
 	"flue gas parameters":{}, 
 
 	"joule heating parameters":{
-		"current through single tube [A]": 130,
+		"current through single tube [A]": 165,
 		"tube material electrical resistivity [ohm m]": 1.4e-6
 	}
 
@@ -86,7 +86,7 @@
 	"steady simulation parameters":{
 		"maximum iterations": 10000000,
 		"convergence criteria": 1e-8,
-		"field underrelaxation factor": 1e-3,
+		"field underrelaxation factor": 1e-4,
 		"wall underrelaxation factor": 0.08
 	},