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There is now a CONTENT FREEZE for Mercury while we switch to a new platform. It began on Friday, March 10 at 6pm and will end on Wednesday, March 15 at noon. No new content can be created during this time, but all material in the system as of the beginning of the freeze will be migrated to the new platform, including users and groups. Functionally the new site is identical to the old one. webteam@gatech.edu
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Advisor: Prof. Lakshmi N. Sankar
will propose a master’s thesis entitled,
Numerical Simulations of the HVAB Rotor in Hover
On
Monday, April 18 at 3:00 p.m.
Montgomery Knight 317
Abstract
Numerical simulations of compressible viscous flow over the HVAB (Hover Verification and Acoustic Baseline) rotor in hover are presented. A commercial flow solver, ANSYS Fluent, has been used. The effects of transition turbulence are modeled using a k-omega-SST model, while the effects of transition are modeled using the Langtry-Menter transitional shear stress transport turbulence model. The rotor is assumed to be rigid. The coning and lead lag angle were numerically computed in a post-processing step by setting the moments generated by the aerodynamic forces and the centrifugal forces at the flap and lead-lag hinges to be zero. Comparisons with other published data are presented. These include integrated thrust and power coefficients, figure of merit, surface pressure distribution, and coning angles.
The proposed work focuses on remodeling the rotor with refined grids to improve the accuracy of the hover performance predictions, capture the wake more accurately, and assess the effects and location of transition.
Committee
