@inproceedings{d2197fb337fa479ca91d85902566b6d8,
title = "Numerical simulation of steady and pulsed flow through thrust augmenting ejectors",
abstract = "In recent years it has been shown experimentally that the thrust augmentation due to an ejector can be significantly increased by pulsating the primary jet. The goal of this paper is to numerically validate this experimentally observed phenomenon. Numerical simulations are performed for steady and pulsed flow through a number of thrust augmenting ejector configurations. A commercially available numerical flow solver {"}FLUENT{"} is employed in the simulation of flow through axis-symmetric ejectors of three different cross-sectional areas. The Spalart-Allmaras turbulence model is employed in this study. Three primary jet Mach numbers, 0.30, 0.65 and 0.80 are considered. The computations are performed for both steady and pulsed flow of the primary jet. For the nine cases computed for the steady primary jet, excellent agreement with the experimental data is obtained for thrust augmentation. A couple of pulsed primary jet cases at low frequency are computed which also show reasonable agreement with the experimental data.",
author = "Okpara, {Emmanuel C.} and Agarwal, {Ramesh K.}",
year = "2008",
doi = "10.2514/6.2008-630",
language = "English",
isbn = "9781563479373",
series = "46th AIAA Aerospace Sciences Meeting and Exhibit",
publisher = "American Institute of Aeronautics and Astronautics Inc.",
booktitle = "46th AIAA Aerospace Sciences Meeting and Exhibit",
}