Some questions about the momentum of reaction wheels and thrusters

[wanglishuo]

Hello Professor @schaubh ，I have encountered a series of problems in my recent study of basics, and I would like to seek your advice here.
The first question is about the momentum of the theory of reaction, when will it increase? I created a simulation in which I changed the attitude of the spacecraft multiple times and observed the changes in momentum, as shown in the following figure. The results show that when momentum tends to stabilize, its value does not undergo significant changes or even remains unchanged. In my understanding, every time I change the attitude of a spacecraft, the momentum of the reaction theory increases slightly on the original basis. Is that correct?
The second question is how to use the thruster module to achieve Hohmann orbit change. I want to transmit the pulse information during orbit change to the thruster module, which consumes a certain amount of fuel during the thruster pulse.Is there a flight software module that can achieve this function by converting the required pulse information into information that the thruster module can accept?
Thank you very much for answering my question ，

[schaubh]

Hi @wanglishuo , regarding your first question, this is really related to basics of attitude dynamics and not a BSK software related question.
Regarding the 2nd question, there isn't a module in BSK repo at this time doing the function you are describing. The thrusters are controlled via an on/off message. You can write a module that will take your impulse request and return an ON message for the desired duration.