DESIGN PROCEDURE FOR TRANSPIRATION AIR COOLED TURBINE BLADES
Abstract
The calculation procedure for determining the coolant flow required to maintain a given wall temperature in transpiration-cooled turbine blades is presented. The basic method has evolved from numerous modifications based upon the experience acquired during testing and evaluation of transpiration cooled configurations. The theory supporting the equations is included. The calculation procedure presented has been tried and prove to be a useful tool. It is believed that continued testing will further the understanding of the influence of turbulent flow on the aerodynamic and heat transfer characteristics of this type of cooling. With refinement of the theoretical approach, improvement in the design procedure can be realized. In order that potentially feasible configurations can be evaluated quickly and economically, the calculation method has been programmed for the IBM 704 digital computer. A brief description of the methods of preparing input data for the machine and of the operation sequence employed by the machine is also included.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 15, 1958
- Accession Number
- AD0481393
Entities
People
- R. Lang
- Wallis Lloyd