Hello I'm Olivier Broca with Siemens PLM software today I'm going to present you
the liquid propulsion solution in LMS Imagine.Lab Amesim
which can help you assessing the overall performance of rocket engine.
This solution is relying on a set of components which has a combustion chamber
as well as a turbine and pump models to assess turbo machinery performance and
a nozzel allowing to compute the thrust..
So what you can see on the screen here is a well-known
liquid position engine which is the RL_10A33A.
You can recognize the typical architecture of such engine with on the left hand side the fuel circuit and
on the right hand side the oxidizer circuit. On the liquid hydrogen side
you can see the reservoir feeding the pump.
Here the fuel pump is a two stage pump, then flow is going through the heat
exchanger which is around the nozzle which is also known as regenerative
circuit or Cooling Jacket and so which is exchanging heat between the nozzle and
the fuel that is going through it. The flow is then going through the turbine and
the Thrust Control Valve which is used to control the thrust.
Then flow is driven to the combustion.
On the right hand side you can see the oxidizer circuit
with again the reservoir, the liquid oxygen pump and then the oxidizer control valve
and then injectors. At the exit of the combustion chamber
you can see the nozzle model which is computing the thrust. So let's first make
a run and then you can monitor any of variables you might be interested in.
So let's say for instance we can have a look here at the temperature inside the combustion chamber.
So we are activating the signal after 0.3 second
and so you can see here the increasing temperature inside the combustion.
In the same model we can also check what is the mach number.
at the throat inside the nozzle and so forth. I would like to attract your attention on one
point here which is a platform feature that we are callingapp which allows
you to put in place on pre and post processing on top of some components.
So here on the nozzle by clicking on that icon here you see that interface which
is providing you an easier way to define the geometry of the nozzle.
So here you have three options available.
So let's select for instance a bell nozzle shape and here you can plot
the nozzle geometry that you will get with that set of parameters.
Then, if you want to analyze an other geometry you can then play with these parameters
and just click again on plot the nozzle geometry to update the geometry and
look if it fits your expectations. Then you can close this window.
And then the nozzle is parametrized thanks to parameters you just have defined on that interface.
So finally today we have seen how the liquid propulsion solution can help you
designing and improving your rocket engine.
We have also seen how platform facilities can ease your daily work.
So thank you for watching and please visit our website.