More advanced fire behavior

Discussion in 'Ideas and Suggestions' started by Twitch Axis, Mar 21, 2016.

?

Which would you rather

  1. Have the fire behavior I described

    92.7%
  2. Don't have the fire behavior I described

    7.3%
  1. Twitch Axis

    Twitch Axis
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    Well, don't people know about fire, and the way it behaves? Fire needs three things:
    • Oxygen
    • Fuel
    • Source
    In the game, the fire keeps burning, and never lightens up, nor gets worse, and there's no damage inflicted on the vehicle. When a car hits a pole, and the fire begins near the front end of the vehicle, or wherever the engine is, right? So if that's the case, why doesn't the fire spread around? If there's another car right next to it, like if there's a car crash with TWO vehicles, after a short amount of time, why doesn't the other car catch on fire? Buildings are very flammable as well, and forests. There should be an advanced setting that allows fire to spread to buildings and other vehicles. At least in the beamng levels, not the user made mods. I honestly don't even know if this is possible, because I don't know what kind of coding you used for the game. (Php, css, etc)


    Here's some more links about fire behavior:



    If anyone else has any thoughts about this, leave a post or message me. Also check out my youtube channel, you will find some cool videos including Beamng video clips!
     
  2. NistingurA

    NistingurA
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    Something like in gta would be enought for now. but the fire is cool to have and not the worst ever. I mean, it doesn´t float over the car or spawns random in the world :p
     
  3. SixSixSevenSeven

    SixSixSevenSeven
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    most metals tend to be fairly non flammable, hence fires not tending to spread from one car to another
     
  4. Nadeox1

    Nadeox1
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    If fire starts on the front, after a while it will spread on the whole car.
    Fire spreading between different cars is not possible at the moment.
     
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  5. Twitch Axis

    Twitch Axis
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    Yes, I did notice that it did spread along one car, I just thought maybe the tech was out there
    --- Post updated ---
    You are correct, there is gas in a car though, tell me you havent see gas explode and catch on fire, or glass and metal melt and deform...
     
  6. Aboroath

    Aboroath
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    Personally I am impressed with the first generation of BeamNG fire. Very impressed. I honestly had no clue
    something of it's caliber was possible in Torque. When you look at it from a technical standpoint the thought
    that has gone into it's current behavior is awesome.

    No doubts in my mind the realism factor will only get better.
     
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  7. SixSixSevenSeven

    SixSixSevenSeven
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    Gasoline doesn't explode though, that and the tanks are designed to be pretty resilient to fire. Still a possibility of course but ultimately not the most likely
     
  8. Twitch Axis

    Twitch Axis
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    Watch this...some tanks do indeed explode. But not often with newer cars.
     
  9. SixSixSevenSeven

    SixSixSevenSeven
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    Would be nice if you posted an explosion. A fireball is not an explosion
     
  10. Twitch Axis

    Twitch Axis
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    Would you please stop nagging at me? I made this so that people could show their thoughts, not make others feel bad. Ok, if you don't like the video I tried to show you, how about you go and look it up on Youtube yourself.
     
  11. youwerelucky

    youwerelucky
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    Yeah they tend to.
    upload_2016-3-21_20-28-30.png
    Cars are not only made of metal and pretty much everything else (tires, interiors, exterior plastics) is fairly flammable.
     
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  12. Twitch Axis

    Twitch Axis
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    Exactly my point, cars do burn, and once they reach a certain temp, they explode, and catch other things on fire.
     
  13. Funky7Monkey

    Funky7Monkey
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    They do not explode. They may rapidly increase in burn rate and look like an explosion, but they do not explode. A car fire rarely spreads to another car.
     
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  14. Twitch Axis

    Twitch Axis
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    THERE IS A LARGE AMOUNT OF GASOLINE IN A VEHICLE. IT BURSTS WHEN IT MEETS WITH FLAME!! CARS DO EXPLODE WHEN ON FIRE.
     
  15. SuperNoob05

    SuperNoob05
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    No they don't.
     
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    • Agree Agree x 1
  16. Funky7Monkey

    Funky7Monkey
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    Butthurt much?

    Gasoline doesn't just explode like you say it does. It requires a very precise concentration to explode. It will burn, often aggressively, but, in almost all circumstances, will not explode.
     
  17. airman426

    airman426
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    Gasoline contains about ten times as many detonatable calories as TNT contains, but it oxidizes (at atmospheric pressure and normal range of temperatures) much more slowly, so in most cases a gas tank doesn't "blow" at all, it just burns. Many of us have seen a car fire burning away on the side of the road, and some of us have even intentionally ignited quantities of gasoline (the smarter of us have done so under pretty tightly controlled conditions) and witnessed its relatively slow burn rate.

    A gasoline-air mix has a lower explosion limit of 1.4% by volume and an upper explosion limit of 7.6%. If the concentration is below 1.4%, the air-gasoline mixture is too lean and does not ignite. If the concentration is above 7.6%, the mixture is too rich and also does not ignite. Mixing is much easier at higher temperatures (more likely to vaporize gasoline) than low temperatures.

    In order to achieve truly high-speed detonation, the gasoline-air mix needs to also be pressurized. The minimum ideal pressure is approximately 6 atmospheres for low-octane (faster burning) gasoline and 8 atmospheres for high-octane (slower burning) gasoline.

    Provided that ideal circumstances exist, meaning high temperature, high pressure (from an extremely heavy weight dropped on the tank), and a good mix of air within the container (tank? Unlikely.), a sizeable detonation could possibly occur. These circumstances are nearly never found in reality - certainly not as shown in movies.

    In order to get a suitable mix of air to gasoline, the tank must be nearly empty, which considerably reduces the size of the potential explosion. Assuming a 20-gallon tank and a 7% mix, you could get no more than about 1.5 gallons mixed sufficiently to make a good explosion if all other conditions were ideal. Gasoline weighs about 6 pounds per gallon, so you'd get maybe 9 pounds of gasoline in your mix, equivalent in calorie content to about 90 pounds of TNT. That's about one-fifth the explosive power of the example bombs used in a BATFE chart listing a lethal blast range of 100 feet, a minimum evacuation distance of 1500 feet, and a falling-glass hazard range of 1250 feet. The inverse-square law tells us that approximately half those distances would be about appropriate for a 1.5-gallon gasoline explosion under ideal conditions (Tim Hofstetter).

    It is a common misconception to think that the tank would explode. And yes, I do think that the original ideas of this thread are good ones, just need to be tweaked a little.
     
    #17 airman426, Mar 21, 2016
    Last edited: Mar 21, 2016
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  18. B727ClassicFlyer

    B727ClassicFlyer
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    Gasoline is highly flammable. 'Nuff said.

    (Skip to 0:35 to see just how flammable gas is.)
     
  19. Funky7Monkey

    Funky7Monkey
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    Yes, flammable. Not explosive unless under ideal conditions.
     
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  20. Aboroath

    Aboroath
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    Boiling Liquid Expanding Vapor Explosions are probably the reason gas tanks 'explode'. Almost anything
    will 'explode' under these circumstances. Not sure what if anything modern fuel tanks do to minimize this
    threat though.
     
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