The three-dimensional computer model as the conjugate problem for an external gas-dynamic flow, internal flow of cooling air, and thermal state processes for a gas-turbine engine blade is described. The verification of the model by comparison of the heat transfer coefficients on the external surface of a blade middle section obtained by the model and the known engineering empirical relationships is presented as well. The model allows one to analyze the distributions of the three-dimensional temperatures, velocities, and pressures for the blade's body and the gas transport in channels with the purpose of a detailed analysis of gas-dynamic and thermal processes, the optimization of parameters of the blade and the flow regime, and the development of the available engineering methods of hydraulic and thermal calculations for blades.

• Юрченко Денис Дмитрович (технічні науки)

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