Some General Considerations in the Design of Axial-Flow Gas Turbines 520258
FUNDAMENTAL considerations, primarily of an aerodynamic nature, that are involved in the design of the turbine component of the gas turbine engine, are discussed by the author. He has achieved a practical outline on a basic level by limiting his material to the general techniques that will be of immediate interest to the turbine designer.
He first discusses the fixed design conditions concerning temperatures and pressures, and then divides the design problem into two parts:
Determination of the velocity diagrams.
Design of the blade profiles to yield those velocity diagrams.
The discussion of the second part of the problem includes the evaluation of four types of the most commonly accepted profile design methods. He then points out that aerodynamics, stress, mechanics, fabrication, and assembly must all be considered together to achieve the best possible design of the turbine.