@Article{IJNAM-4-1,
author = {C., B., Allen},
title = {Parallel Simulation of Lifting Rotor Wakes in Forward Flight},
journal = {International Journal of Numerical Analysis and Modeling},
year = {2007},
volume = {4},
number = {1},
pages = {1--15},
abstract = {<p style="text-align: justify;">A finite-volume implicit, unsteady, multiblock, multigrid,
upwind solver, and structured multiblock grid generator for rotors are
presented, and applied to lifting rotors in forward flight. These flows
are particularly expensive to compute as the accurate capture of the
detailed vortical wake requires fine meshes away from the blades and,
hence, a parallel version of the code has been developed allowing the
use of very fine meshes. Parallel performance of the code is presented,
and grid dependence of the computed blade loads and wake analysed, by
considering wake capturing, total blade load and sectional load
variation around the azimuth. It is demonstrated that the vortical wake
capture is severely influenced by grid density, and even with 32 million
points grid convergence is not approached. It is also shown that if
blade loads only are of interest the vorticity dissipation is not a
severe problem, and coarser meshes can be used. However, if more detail
is required, for example blade-vortex interaction or aero-acoustic
analysis, it would appear very difficult to capture the wake to any
reasonable accuracy.</p>},
issn = {2617-8710},
doi = {https://doi.org/2007-IJNAM-847},
url = {https://global-sci.com/article/83754/parallel-simulation-of-lifting-rotor-wakes-in-forward-flight}
}