ATG Projects provides high-end thermal, structural and flow
engineering services to European high-tech industries. We are involved
in research and development programs focusing on composites and their
application in the aerospace, semiconductor and maritime industry. By
combining a research level expertise with a down-to-earth problem
solving approach, we are able to offer innovative solutions to complex
issues on time, within budget.
Using the high quality standards we already meet for over 15 years in
the aerospace industry and the experience in design, analysis and
optimization we have built up, we support our customers by managing
throughout the whole development process, from the early stages of
conceptual design up to and including full qualification and
certification of the product.
Our team of multidisciplinary European top-talented engineers, supported
by a dedicated recruitment department with over 30 years of experience
in finding the Brightest Minds in Europe in any technical field of
expertise, has been responsible for certification of various primary
aircraft structures for Airbus. We have performed the complete design,
analysis and verification of thermal control systems for space
instruments, such as the PROBA V VI, and components of spacecraft, such
as reaction wheels and propulsion systems. Currently we are the
mechanical and thermal partner for OIP NV in developing the instrument
for the ALTIUS mission and we support MOOG Bradford Engineering in
qualifying their space hardware.
The physics behind ion detachment is not fully understood yet.
There are a number of publications on this topic and one paper concludes
that the detachment models have to be reconsidered.
Particle-In-Cell computations have been performed for the
selected cases of plasma expansion in a magnetic nozzle. The open source
software has been improved for these computations. The obtained results
have been compared with a prediction of a simple model of ion
detachment. It was shown that this simple model can not provide accurate
results for the plasma flow. However, the model prediction of location
of ion detachment is still acceptable and can be used in design loop.
Plasma spacecraft interaction affects the spacecraft potential
and can, for example, lead to discharges. In the case of electric
propulsion additional effects may be observed, for example, material
erosion, attenuation and reflection of electromagnetic wave. Spacecraft
Plasma Interaction System (SPIS) is open source software. It has been
under development for almost ten years. However, it is still not
efficient in the case of relatively dense plasma.
A simplified approach to model a plasma plume has been
implemented in SPIS and used to compute a spacecraft floating potential
with and without the plasma engine firing.