Mathematical Problems in Engineering

Research Article

Multipoint and Multiobjective Optimization of a Centrifugal Compressor Impeller Based on Genetic Algorithm

Table 4

Active variable numbers and range of variations in final design space.
 Active variable numberRange of variation
Hub9, 10
20, 22, 23
Shroud31, 32, 33
39, 40
Full root44, 45, 46, 48, 50
Full tip52, 53, 54, 55, 58
Splitter root59, 61, 63
Splitter tip64, 65, 67, 68
Constraints. Same as in Table 3.