...
That's pretty much the design – there are many seals because it's important that fuel, oxidizer, and igniter exhaust do NOT mix prior to combustion. There are also O-rings on the bottom of the face plate that prevent combustion gases from leaking through the mating surface between the phenolic and injector; by the way, the outer sides of the injector sit on top of the combustion chamber, but the injector is secured to the chamber by radial bolts (shown in cross section 2 (ADD THIS)). Lastly, the injector face was filleted to prevent stress concentrations.
We created a Here is the Jupyter Notebook used to calculate many of the parameters for the injector.
...
of the injector.
Using Huzel and Huang (pp. 144-148), we calculated chamber lengths to avoid to minimize the risk of longitudinal instability. These lengths are 125, 127, and 172 inches.
| View file | ||||
|---|---|---|---|---|
|