Search Results
| Search type | Search syntax |
|---|---|
| Tags | [tag] |
| Exact | "words here" |
| Author |
user:1234 user:me (yours) |
| Score |
score:3 (3+) score:0 (none) |
| Answers |
answers:3 (3+) answers:0 (none) isaccepted:yes hasaccepted:no inquestion:1234 |
| Views | views:250 |
| Code | code:"if (foo != bar)" |
| Sections |
title:apples body:"apples oranges" |
| URL | url:"*.example.com" |
| Saves | in:saves |
| Status |
closed:yes duplicate:no migrated:no wiki:no |
| Types |
is:question is:answer |
| Exclude |
-[tag] -apples |
| For more details on advanced search visit our help page | |
Results tagged with aerodynamics
Search options answers only
not deleted
user 24351
1
vote
Is it known how streamlined the Shinkansen 800 bullet train is when on rails?
I'm not exactly clear what you're asking but I'll try an answer. I didn't watch the other video, but a teardrop shape is the best pure shape.
Bullet train design has diverged from the original design …
- 7,148
1
vote
Accepted
Why flow around an airplane is different in different frames of reference
With respect to the ground, an airplane tears up the air it goes through - the disturbance isn't uniform it's unsteady, it moves across the world.
With respect to the airplane, the air flows around it …
- 7,148
1
vote
How air dam reduce drag and lift?
Depending on exactly how the entire system is designed, it reduces drag and/or reduces lift.
The undercarriage isn't faired, so reducing air flow through the bottom of the car reduces drag. You will …
- 7,148
0
votes
Can a fluid have more or less static pressure than atmospheric pressure in atmosphere?
Of course it can, this is the nature of airfoils. Furthermore, atmospheric pressure changes across the world - a barometer is used to measure this. The result of different atmospheric pressures? Wi …
- 7,148
1
vote
Accepted
Governors and acceleration effect on IC engine
Governers aren't really a thing on road-going vehicles. Governors are used on constant speed engines to maintain an engine speed. Single speed road vehicles aren't very useful.
A governor works by f …
- 7,148
19
votes
Can we add treadmill-like structures over the airplane surfaces to reduce friction, decrease...
You can't reduce friction with machines.
The nature of machines is that everything you do adds inefficiency. A moveable wing surface adds weight, complexity, and additional losses. Even if you did it …
- 7,148