Wheel bearing
I think it's called an engine
Yes, a tornado is loud because of the high winds swirling around it, which can produce a loud roaring sound. The noise is often compared to that of a freight train or jet engine.
Take it to A shop if you are not familiar with mechanical repairs, It sounds like you may have A bad wheel bearing.
The compressor may have a locked rotor in the condenser causing the loud roaring noise. Another possibility is low refrigerant.
rack and pinion
Bad fan clutch!!
It is the alternator....
Probably low gear oil.
The roof rack or lauggage rack may be catching wind and vibrating. If it has adjustable cross members slide them toward the back of the van and see if that helps.
If applicable, you may have a faulty (locked up) fan clutch.
The sound of a jet can be described as a loud, roaring noise. It is often compared to a continuous thunder or rumble.
The fuel in the cylinders exploding