Register to reply

Swooshing noise as car drives near obstacles

by davidbenari
Tags: drives, noise, obstacles, swooshing
Share this thread:
davidbenari
#1
Aug1-14, 11:05 AM
P: 78
As you drive with your windows open you can hear a sound due to some continuous stream of air that is hitting your face, or whatever. But why is it then, that when you drive past by some obstacle, like a tree, you hear a swooshing noise? What is causing this?
Phys.Org News Partner Physics news on Phys.org
Three's a charm: NIST detectors reveal entangled photon triplets
How did evolution optimize circadian clocks?
New webcast series brings cutting-edge physics talks to the world
jedishrfu
#2
Aug1-14, 11:12 AM
P: 3,091
Could be the car's own motor noise and air turbulance noise being imperfectly reflected from the tree back to you and acting like a doppler effect.

http://en.wikipedia.org/wiki/Doppler_effect
olivermsun
#3
Aug1-14, 12:19 PM
P: 843
Typically you're hearing tire, mechanical, and maybe some aero noise being reflected back to you. It's especially obvious when you drive next to a wall.

If you're driving close enough to a tree that your airflow is interacting noticeably with the tree, then you may want to back off a bit.

sophiecentaur
#4
Aug1-14, 02:04 PM
Sci Advisor
Thanks
PF Gold
sophiecentaur's Avatar
P: 12,251
Swooshing noise as car drives near obstacles

Quote Quote by olivermsun View Post

If you're driving close enough to a tree that your airflow is interacting noticeably with the tree, then you may want to back off a bit.
Very well put. I laughed.
Borek
#5
Aug1-14, 02:10 PM
Admin
Borek's Avatar
P: 23,707
You finally hear how noisy your car is.


Register to reply

Related Discussions
Pendulum with obstacles Advanced Physics Homework 4
Obstacles for Life in the Degenerate Era Science Fiction Writing 1
Can virtual photons cross any obstacles? Quantum Physics 0
Obstacles in chaining Introductory Physics Homework 1
Question about some physics, moving obstacles. Introductory Physics Homework 1