A turbofan engine model can bring one part of a flight-simulation interest off the screen. It does not need to control the simulator or reproduce the aircraft's systems. Its role can be simpler: a physical object that gives you somewhere to look, read and ask questions when the virtual flight is over.
I would choose that role deliberately. A simulator desk already has working equipment competing for space. Another object should add to the interest without blocking a throttle, hiding a keyboard or turning a useful control area into a display that must be rearranged before every session.
What can an engine model add that the simulator does not?
A virtual cockpit places you inside a particular representation of an aircraft. A tabletop cutaway directs attention toward the machine producing propulsion. The two experiences can complement each other without needing a hardware connection. You can enjoy operating a simulation and separately study how the original engine family is arranged.
The difference is also physical. A model has a fixed size, material and viewing angle that you can approach directly. The TECHING DM122 kit is 18 × 7.7 × 11.2 cm, with zinc alloy, aluminium alloy and plastic components. Its visible stages provide a compact object for close observation beside aviation books or a notebook.
I would not describe that as making the simulation technically more accurate. Accuracy depends on the simulator and its implemented aircraft systems. The model adds a different activity to the same interest: building and inspecting rather than interacting with a virtual cockpit.

Which model format suits a simulator area?
Start with the equipment you use, not an idealised photograph. Leave access to the controls, mouse and connections. A compact cutaway may fit on an adjacent shelf where it can remain visible without occupying the active surface. Its useful position is the one from which you can actually inspect it.
The 41 cm opening-nacelle model asks for more room. Its closed dimensions are 41 × 14 × 23 cm, and opening the casing requires additional clearance. I would place that larger model on a separate sideboard rather than force it between a monitor and a controller. Its attraction is being able to approach and reveal the structure.
The model is not another cockpit peripheral
Neither product should be assumed to provide simulator input, telemetry, force feedback or software integration. An electrical connection used to power a display is not evidence of a data interface. If you want working simulator hardware, choose equipment explicitly designed for that purpose.
This boundary makes the model easier to enjoy. It can remain a personal object rather than acquiring another configuration task, driver update or compatibility problem. The interest is aviation; every object supporting it does not have to belong to the computer system.
How can I connect a virtual flight with real-engine reading?
Choose one question raised during the session. Perhaps an aircraft's engine family interests you, or you want to understand why two airliners use different installations. Record the aircraft variant before looking up the answer. A broad aircraft name may not identify a single engine option.
Use the original manufacturer or an aviation museum for the real machine. Keep the simulator's implemented behaviour separate from both the original aircraft and the model. These are three different representations, each useful for different questions. A familiar label should not make them seem technically identical.

I would keep a short aviation notebook beside the model: aircraft, engine question and source. There is no requirement to create a complete technical archive. One reliable answer can make the next session more interesting, and an unresolved question can wait until another evening.
The turbofan model collection provides the direct browsing route. The engine collection opens other mechanical forms if your interest expands. Choose the physical model because you want to build or inspect it, rather than because it appears in a setup you admire.
Can this become a personal space rather than more computer equipment?
It can if the room supports more than the screen. Keep a comfortable place to read and a little clear surface for the model's manual. A small shelf with an engine and an aviation book can establish a second mode of using the corner without a major redesign.
I would avoid making every object compete for brightness. A task light can show the model's actual materials while the simulator screen remains the main visual focus during a flight. Powered model effects can be enjoyed separately. They do not need to run whenever the computer is on.
For mechanical models for desk display, the strongest connection is often the one you make through use. You finish a virtual flight, close the software and spend a few minutes following an engine question. Another evening, the kit itself may be the activity. Neither needs to be measured as progress.
The result is a room with a continuing aviation interest rather than a collection of devices waiting to be configured. The engine model gives that interest a small, tangible place, even when the monitor is dark.
An aircraft engine model kit can also offer a separate project when you do not want another simulator session. Keep its components in a labelled tray away from the controls, and return the desk to its normal use when you pause. The distinction is useful: one activity is software-based flying, another is physical assembly. I would let each have its own beginning and end rather than leave an unfinished mechanism mixed into the equipment used for the next flight.

FAQ
Is the larger opening-nacelle model suitable behind a monitor?
Only if you can still approach it and open the casing comfortably. A separate accessible surface may suit its main feature better.
Does model rotation explain the simulator’s engine indications?
Not directly. The model's drive, the real engine and the software implementation are distinct systems. Use appropriate sources for each.
Do I need to buy a model to deepen the hobby?
No. A reliable book and a notebook can be valuable first additions. Choose a model when its build or physical presence adds something you want to use.