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- Title
Optimization of Parameters of Gas-Generator and Lidar Systems for Measuring Air Flows in Nondestructive Examination of Cooling Microchannels at Short Distances.
- Authors
Kim, A. A.; Eliseev, K. V.; Akap'ev, V. V.; Akap'ev, V. L.; Savotchenko, S. E.; Gorlov, A. S.
- Abstract
A method of nondestructive examination of the state of cooling microchannels of heavily loaded turbine blades by measuring the speed of an exiting aerosol-containing air flow using a continuous-wave coherent Doppler lidar is described. A mathematical model by use of which optimum values of parameters of gas-generator and lidar systems are determined is developed. The effect of the diameter of aerosol particles on the backscattered power is studied.
- Subjects
DOPPLER lidar; LIDAR; MICROCHANNEL flow; TURBINE blades; DISTANCES; AIR flow; AEROSOLS
- Publication
Technical Physics Letters, 2020, Vol 46, Issue 5, p427
- ISSN
1063-7850
- Publication type
Article
- DOI
10.1134/S1063785020050053