To study the internal cooling technology of turbine blade

three types of blades

i.e.non-cooled blade using adiabatic boundary condition

non-cooled blade using conjugate heat transfer method

and air-cooled blade using conjugate heat transfer method

were studied.The results show that heat conductivity of the blade has a significant influence on blade temperature distribution;the structure of rib-roughened cooling and latticework cooling makes the blade temperature drop markedly.However

this leads to increased non-uniformity of blade temperature distribution and irregular heat transfer coefficient distribution on the blade surface.