CFD Engineer - Transonic Aerodynamic Design & Analysis
Company: GENERAL ATOMICS
Posted on: January 16, 2022
General Atomics Aeronautical Systems, Inc. (GA-ASI), an
affiliate of General Atomics, is a world leader in proven, reliable
remotely piloted aircraft and tactical reconnaissance radars, as
well as advanced high-resolution surveillance systems.
We have an exciting opportunity for a Master 's level CFD
(computational fluid dynamics) engineer to contribute to the design
and analysis of transonic air vehicles. This position is within the
Flight Technologies department in San Diego, CA. At low fidelity
your CFD analyses might include inviscid tools, as well as inviscid
and viscous 2D airfoil tools, and they may be part of a MDAO
framework and/or digital thread. At high fidelity you will mainly
focus on commercial and government RANS codes, but there are
efforts underway to investigate LBM and codes compatible with
OpenMDAO. Responsibilities include the execution and documentation
of CFD related design and analysis projects, tool development, and
the estimation of budgets and schedules.
DUTIES AND RESPONSIBILITES:
- Assist in all stages of the CFD-based aerodynamic design and
optimization process within the Flight Technologies
- Generation of computational meshes and performing CFD analyses
using standard commercial and/or governmental mesh generators and
CFD codes. The latter includes monitoring convergence of both
steady state and transient simulations.
- Generate reports, specifications, memos, and sketches of the
obtained CFD results and present them verbally in meetings and
phone conferences to all level employees and customers.
- Development of CFD tools for process compression to enable CFD
to be used in the design stages by non-CFD experts. This includes
writing journal files and scripts for batch processing of geometry
creation, meshing, analyses and post-processing.
- Implement physics models into the CFD tools to expand their
- Compare CFD results to wind tunnel and flight test data, in
order to validate and calibrate the analyses performed.
- Assist employees in and outside Flight Technologies with usage
of generated results.
- Contribute to the improvement of transonic analysis methods,
such as via solution-based, automatic mesh refinement (AMR) and/or
adjoint-based refinement and optimization.
- Contribute to the improvement of transition prediction,
especially at higher speeds.
- Contribute to the integration of CFD into the digital thread,
which is likely to involve integration with OpenMDAO.
We recognize and appreciate the value and contributions of
individuals with diverse backgrounds and experiences and welcome
all qualified individuals to apply.
Typically requires a bachelor's or
masters' degree in engineering or a related technical discipline
from an accredited institution and two or more years of engineering
experience with a bachelor's degree. May substitute equivalent
engineering experience in lieu of education.Strongly prefer a
Master's or PhD in aerospace or mechanical engineering with
specialization in CFD, ideally.Requires strong technical knowledge
of external flows, including transonic flows, transition, and
separation prediction.Requires strong technical knowledge and
experience in aircraft design and optimization, including wing
design. Requires strong technical knowledge and experience in MDAO.
Requires familiarity and experience using adjoint-based
solvers.Must have a sincere interest in airplanes.Requires solid
knowledge of fluid- and thermodynamics, and CFD.Requires in-depth
knowledge of when to use RANS, uRANS, DDES, WM-LES, etc.Knowledge
of transition modeling, such as Menter 's Re-theta-gamma, but
ideally also stability codes (LASTRAC etc.).Requires mastery in at
least one widely used CFD solver (preferably FLUENT or
CCM+).Requires mastery of 2D codes, specifically XFoil and
MSES.Requires mastery of at least one meshing tool, preferably
ANSA.Familiarity with creating aerodynamic databases, ideally
including UQ and ROMs such as RSM. Working knowledge of utility of
CFD data and wind tunnel data, including error estimation and
ideally UQ.Requires basic knowledge of a CAD system (preferably
NX).Requires solid programming knowledge (C, C++, Fortran,
preferably Matlab).Experience with Government codes such as
Kestrel, Fun3D, OverFlow is desirable.Familiarity with advanced
solvers, such as Lattice-Boltzmann (LBM), Discontinuous Galerkin,
and/or higher-order methods is desirable.Familiarity with active
flow control (AFC) is desirable.Familiarity with high-lift
prediction is desirable.Occasional travel to wind tunnels, customer
sites, and conferences.Must have an understanding of engineering
concepts, principles, and theory and experience demonstrating the
application of those concepts.Must possess the ability to
understand new concepts quickly and apply them accurately
throughout an evolving environment.Must have strong communication,
computer, documentation, presentation, and interpersonal
skills.Must be able to work both independently and on a team.
Keywords: GENERAL ATOMICS, Santee , CFD Engineer - Transonic Aerodynamic Design & Analysis, Engineering , Santee, California
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