Aerodynamic characteristics of an over-the-wing engine-mount (OTWEM) aircraft are analyzed computationally. A computational fluid dynamics code known as STAR-CCM+ is used to generate computational meshes and compute the flow properties of the OTWEM configuration. Optimal location of the nacelle relative to the wing is determined by examining the values of lift-to-drag ratio for various nacelle locations under cruise conditions. Calculations for unpowered conditions are also conducted to investigate the effect of engine operating condition on aerodynamic performance.
The results show that drag is minimized if the nacelle front face is located at 75% chord from the wing leading edge due to shock wave diminishment. However, the best lift-to-drag ratio is obtained if the nacelle front face is located at mid-chord of the wing and far above the wing surface. It is also found that the engine operating conditions have little effect on the flow.
|School:||California State University, Long Beach|
|School Location:||United States -- California|
|Source:||MAI 49/02M, Masters Abstracts International|
Copyright in each Dissertation and Thesis is retained by the author. All Rights Reserved
The supplemental file or files you are about to download were provided to ProQuest by the author as part of a
dissertation or thesis. The supplemental files are provided "AS IS" without warranty. ProQuest is not responsible for the
content, format or impact on the supplemental file(s) on our system. in some cases, the file type may be unknown or
may be a .exe file. We recommend caution as you open such files.
Copyright of the original materials contained in the supplemental file is retained by the author and your access to the
supplemental files is subject to the ProQuest Terms and Conditions of use.
Depending on the size of the file(s) you are downloading, the system may take some time to download them. Please be