Мне кажется, что твоей голове до функционала довольно дорогого программного пакета, в котором моделируют газотурбинные двигатели, далековато.
Так вот этот пакет говорит нам следующее
По сравнению с квадратом
Так вот этот пакет говорит нам следующее
По сравнению с квадратом
CFD will only spit out crap if you put crap in it. You need to set up your boundary conditions right, before you assume the sides are getting less air. They are getting less air due to the way you set up your boundary conditions up. You probably told it that the throttle body is the entrance point at XXX pressure or flow rate, and the runners were all basic outlets. Try a timed opening of each runner using the equation formula built into the software. Find the time sequence of the intake valve opening and place the formula for each runner opening by right clicking on each outlet. This will give you better visuals plus it lets you monitor flow between the runners.
Things like shock waves and reverse flow within the chamber make things complicated to calculate by any CFD to date. Even when using military CFD it is not possible to calculate it right due to the errors in the iteration the software will spit out.
The sides should see more flow. The slower moving air over the sides creates a higher static pressure. This will cause more fluid flow down those outer runners, as the pressure difference is the greatest there.
The best place for a throttle body is in the middle of the plenum. It has been tested many times over the last century. A smoother transition between the throttle body and plenum is needed so the separation (swirls) is more consistent. Throttle body facing down will help with shock wave distribution as it bounces off the plenum wall, so you got the right idea there.
