@inproceedings{4281f5d83acb48959ba57d695657c303,
title = "A study on aerodynamic design of highefficiency propellers at high-altitude",
abstract = "The density of air at high-altitude is extremely low. Therefore, one of the main characteristics of flow around propellers at high-altitude is low Reynolds number, resulting in low efficiency of propeller. A Reynolds-averaged Navier-Stokes (RANS) solver on a chimera grid system for both conventional and tandem configuration propellers are developed. Then, an aerodynamic optimization platform for propellers is established by using an efficient optimization method including the genetic algorithm (GA) and the Kriging model. A tandem configuration propeller is formed based on the optimized conventional two-bladed configuration, and the flow around the tandem configuration propeller is investigated, as well as the corresponding aerodynamic performance. The results demonstrated that the efficiency of rear propeller is much lower than that of front propeller for a tandem configuration, whereas the efficiency of the whole configuration is increased.",
keywords = "Aerodynamic design, High-altitude propeller, RANS equations, Tandem configuration",
author = "Jianhua Xu and Wenping Song and Wenqing Yang",
year = "2014",
language = "英语",
series = "29th Congress of the International Council of the Aeronautical Sciences, ICAS 2014",
publisher = "International Council of the Aeronautical Sciences",
booktitle = "29th Congress of the International Council of the Aeronautical Sciences, ICAS 2014",
note = "29th Congress of the International Council of the Aeronautical Sciences, ICAS 2014 ; Conference date: 07-09-2014 Through 12-09-2014",
}