Aerospace Services
Combustion simulation
Atkinson Science has a long history of combustion simulation that encompasses gas turbines,
ramjet and scramjet engines, pre-mixed, partially pre-mixed and diffusion flames, and liquid
and gaseous fuels. This history began before CFD software became available commercially and
engineers had to write their own CFD code. Combustion simulation is multi-disciplinary and
requires an understanding of turbulence modelling, chemical kinetics, combustion modelling
and radiation modelling. On this web site you will find numerous examples of combustion
simulation that are relevant in aerospace and other industries. Please contact Atkinson
Science to discuss your requirements.
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High Mach number flow
Flow at high Mach number can display behaviour that is quite unexpected if one has only ever
dealt with subsonic flow. This aspect makes it a particularly fascinating branch of fluid
dynamics. At Atkinson Science we have been simulating high Mach number flow for many years
on account of our work on aero propulsion systems. On this site you will find some free-to-use
web applications that are indispensable in the study of high Mach number flow, including an
application to calculate the Prandtl-Meyer function, and two others to calculate the change
in properties across an oblique shock and a conical shock. Please contact Atkinson Science
if you would like to discuss a problem involving high Mach-number flow.
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Heat transfer simulation
Atkinson Science has many years of experience in simulating all three modes of heat transfer:
conduction, convection and radiation. On this web site you will see heat transfer simulation
applied to a wealth of engineering problems across many industries. Very often the
simulations include other complex phenomena such as turbulence, chemical reaction, combustion
or two-phase flow. If you have a problem in which heat transfer is one of the aspects then
please contact us. Read more.
Mathematical modelling
Sometimes very useful results can be obtained from a simple mathematical model, without the
need for a complex numerical simulation. For example, an airliner at high altitude can be
modelled as an insulated pressure vessel. If a cabin window breaks then the escape of air can
be modelled like the rupturing of a pressure vessel. The discharge will be choked at first
but will unchoke once the cabin pressure falls below the critical pressure
(pAtm/0.528). Atkinson Science can create mathematical models that estimate
the scale of a problem or that show whether a design change will provide a significant
improvement.
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Windows and web applications
Atkinson Science can create Windows and web applications that are easy to use but capable of
solving complex problems in physics and engineering to a high level of accuracy. We can also
create applications that simply demonstrate a process, for example, the response of a chemical
injection pump to an increase in line pressure. Some of our applications are intended to be
educational while also having a practical purpose. All of the web applications on this site
are accompanied by a detailed theory guide that you can download for free. We can build
Windows or web applications that exploit a recent scientific advance or speed-up repetitive or
time-consuming calculations. Read more.