अमूर्त

CONJUGATE HEAT TRANSFER ANALYSIS OF INTERNALLY COOLED GAS TURBINE AIRFOILS

Kirankumar K.M , Dr. Basawaraj

Current thesis described in this manuscript is an effort to fill a need in the gas turbine industry for a systematic validated computational methodology for conjugate heat transfer problem to give the optimum cooling Channels designee and Channels positioning in gas turbine airfoils to obtain batter cooling rate in the blade. Because ofnature of cooling for turbine airfoils it is deemed to be necessary to include comprehensive numerical study in internal cooling with ribbed channels and investigate heat transfer deduction in channel turns.In this part CFD and conjugate heat transfer solutions are compares against measures surface pressure and heat transfer profile on the C3X turbine blade. The conjugate numerical methodology was employed to predict the metal temperature of a three dimensional gas turbine blade at realistic operating conditions. Numerical results compared with experimental results available in literature in terms of pressure distribution on the blade wall. The present study involves conjugate heat transfer methodology for application to the aerothermal problem of an internally-cooled gas turbine airfoil at realistic operating conditions with MARK-II using CFX 12.1. Meshing was done by HM, with the design environment in mind; attention is given to high-quality mesh generation. Finally CFD results were compared with experimental test casesavailable in the literature.

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