Title page for ETD etd-06042002-112432


Type of Document Master's Thesis
Author McCormick, Daniel John
URN etd-06042002-112432
Title An Analysis of Using CFD in Conceptual Aircraft Design
Degree Master of Science
Department Mechanical Engineering
Advisory Committee
Advisor Name Title
Myklebust, Arvid Committee Chair
Gelhausen, Paul Committee Member
Wilson, Sam III Committee Member
Keywords
  • CFD
  • farfield
  • drag
  • conceptual aircraft design
  • lift
Date of Defense 2002-05-27
Availability unrestricted
Abstract
The evaluation of how Computational Fluid Dynamics (CFD) package may be incorporated into a conceptual design method is performed. The repeatability of the CFD solution as well as the accuracy of the calculated aerodynamic coefficients and pressure distributions was also evaluated on two different wing-body models. The overall run times of three different mesh densities was also evaluated to investigate if the mesh density could be reduced enough so that the computational stage of the CFD cycle may become affordable to use in the conceptual design stage. A farfield method was derived and used in this analysis to calculate the lift and drag coefficients. The CFD solutions were also compared with two methods currently used in conceptual design - the vortex lattice based program Vorview and ACSYNT. The unstructured Euler based CFD package FELISA was used in this study.
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