## 3 Materials and Boundary Conditions
\begin{table}
\begin{tabular}{c c c c c c} \hline \hline
**Local** & \
\begin{tabular}{c} **Convective Coefficient** \\ **(W/(m\({}^{2}\) C))** \\ \end{tabular} & **Temperature \({}^{\circ}\)C** & **Local** &
\begin{tabular}{c} **Convective Coefficient** \\ **(W/(m\({}^{2}\) C))** \\ \end{tabular} & **Temperature \({}^{\circ}\)C** \\ \hline Compressor disc 4 blade platform & 723 & 137 & Front bearing seal & 650 & 45 \\ \hline Compressor disc 4 blade tip surface & 705 & 137 & Front bearing stop & 450 & 40 \\ \hline Compressor disc 4 frontal surface & 744 & 131 & Spring of front bearing & 500 & 25 \\ \hline Compressor disc 4 back surface & 944 & 179 & Surface with all at rear bearing & 2850 & 95 \\ \hline Compressor disc 5 blade surface & 3410 & 185 & Oil duct near front bearing & 1200 & 100 \\ \hline Compressor disc 5 blade platform & 841 & 185 & Aerofoil and oil duct & 2561 & 206 \\ \hline Compressor disc 5 blade tip surface & 823 & 185 & Static rear part of oil duct & 200 & 206 \\ \hline Compressor disc 7 frontal surface & 933 & 179 & Front bearing oil duct & 1200 & 70 \\ \hline Compressor disc 5 back surface & 1111 & 218 & Frontal thermal shield & 300 & 300 \\ \hline Turbine stator blade surface & 1250 & 830 & Back thermal shield & 400 & 310 \\ \hline Turbine stator blade platform & 850 & 830 & Outlet exhaustion duct & 50 & 20 \\ \hline Turbine stator top surface high & 1250 & 830 & Eshhaustion duct top surface & 820 & 650 \\ \hline Turbine stator top surface low & 100 & 300 & Eshhaustion duct interior surface & 820 & 650 \\ \hline Turbine stator frontal surface & 500 & 350 & Eshhaustion duct support & 1000 & 650 \\ \hline Turbine stator back surface & 300 & 300 & Eshhaustion duct inner surface & 200 & 541 \\ \hline Compressor stator 1 blade surface & 1077 & 30 & Combustion chamber surface 1 st of 6 & 560 & 1700 \\ \hline Compressor stator 1 blade platform & 415 & 30 & Combustion chamber surface 2 nd of 6 & 560 & 1200 \\ \hline Compressor stator 1 frontal surface & 319 & 30 & Combustion chamber surface 3 rd of 6 & 560 & 900 \\ \hline Compressor stator 1 back surface & 560 & 30 & Combustion chamber surface 4 th of 6 & 920 & 300 \\ \hline Compressor stator 2 blade surface & 1439 & 65 & Combustion chamber surface 5 th of 6 & 400 & 300 \\ \hline Compressor stator 2 blade platform & 539 & 65 & Combustion chamber surface 6 th of 6 & 600 & 300 \\ \hline Compressor stator 2 frontal surface & 429 & 58 & Combustion chamber inner top & 900 & 300 \\ \hline Compressor stator 2 back surface & 742 & 72 & Cover around combustion chamber & 50 & 20 \\ \hline \hline \end{tabular}
\end{table} 
Table 4: _Cont._ \begin{table}
\begin{tabular}{c c c c c} \hline \hline
**Local** & **Convective Coefficient (W/fm\({}^{2}\)C)** & **Temperature \({}^{\circ}\)C** & **Local** & **Convective Coefficient (W/fm\({}^{2}\)C)** & **Temperature (\({}^{\circ}\)C)** \\ \hline Compressor stator 3 blade surface & 1795 & 112 & Shaft end at rear bearing & 250 & 300 \\ \hline Compressor stator 3 blade platform & 676 & 112 & Shaft exterior surface & 400 & 300 \\ \hline Compressor stator 3 frontal surface & 568 & 104 & Shaft interior surface & 400 & 260 \\ \hline Compressor stator 3 back surface & 944 & 120 & Static rear part inner shaft & 900 & 300 \\ \hline Static interior back part & 150 & 250 & Static front part inner shaft & 400 & 300 \\ \hline Static interior platform part & 200 & 206 & Swiler & 500 & 250 \\ \hline
**Local** & & **Emissivity/Radiation** & **Temperature (\({}^{\circ}\)C)** & \\ \hline Combustion chamber interior high & & 0.6 & 1700 & \\ \hline Combustion chamber interior medium & & 0.6 & 1200 & \\ \hline Combustion chamber interior low & & 0.6 & 900 \\ \hline Static part around combustion chamber & & 0.6 & 980 \\ \hline Static part below combustion chamber & & 0.6 & 1100 \\ \hline Static part around turbine disc & & 0.6 & 600 \\ \hline \hline \end{tabular}
\end{table} 
Table 4: _Cont._