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cooking grilled meat would use radiation some convection. conduction would cook the inside.
Conduction is a method
Heat is transferred through Convection, Conduction, and Radiation. Convection is heat transferred through a liquid medium such as air, as felt from your furnace. Conduction is through a solid medium. One instance of this takes place through the bottom of a cooking pan. Radiation is transferred through a void in the form of low frequency light waves, or infra-red radiation. This can easily be observed by moving in and out of a shadow into the sun. The air temperature around you remains constant, but you instantly feel the heat of the sun. That's from the sun's radiation.
Barbecuing, depending on what specific process it is referring to, could be either radiation, convection, or conduction. Radiation is when energy is released in the form of a photon, so the flames of the barbecue (light energy) are a form of radiation. Conduction is when energy is transferred through contact, or collision, therefore, the things you are cooking on the barbecue, are being heated through conduction with the metal. Convection is when energy travels through energy-containing particles (other than photons), so the steam rising from the coals is convection currents.
Although some of the cooking in a grill is baking or roasting, the nature of grilling is radiation. To demonstrate that, put metal between your heat source and the meat and it will cook differently.
Conduction, Convection, Radiation
cooking grilled meat would use radiation some convection. conduction would cook the inside.
cooking grilled meat would use radiation some convection. conduction would cook the inside.
Conduction is a method
Cooking grilled meat is more conduction of the three cooking methods. This is because grilling conducts heat, instead of convecting or radiating it.
convection
Heat is transferred through Convection, Conduction, and Radiation. Convection is heat transferred through a liquid medium such as air, as felt from your furnace. Conduction is through a solid medium. One instance of this takes place through the bottom of a cooking pan. Radiation is transferred through a void in the form of low frequency light waves, or infra-red radiation. This can easily be observed by moving in and out of a shadow into the sun. The air temperature around you remains constant, but you instantly feel the heat of the sun. That's from the sun's radiation.
For convection cooking by using a convection oven.
A classic toaster (bread toaster) is mostly radiation with a little convection. The heating elements radiate their heat onto the contents of the toaster. (In a "toaster over" there is much more convection when the oven is closed, and it functions like a conventional oven, cooking mainly with the trapped heated air.)
Barbecuing, depending on what specific process it is referring to, could be either radiation, convection, or conduction. Radiation is when energy is released in the form of a photon, so the flames of the barbecue (light energy) are a form of radiation. Conduction is when energy is transferred through contact, or collision, therefore, the things you are cooking on the barbecue, are being heated through conduction with the metal. Convection is when energy travels through energy-containing particles (other than photons), so the steam rising from the coals is convection currents.
This is a more complicated question than you might expect. There are three basic way heat moves, convection, radiation, and conduction. Convection moves heat around by the rising and falling (currents) of some medium like air or water. The currents form, because heated material (in general) is less dense than cooler material. Therefore, convection *never* happens in the absence of gravity. Radiation is always in the form of light, specifically infrared. The warmth you feel when sunlight touches your skin is this kind heat. Lastly, there's conduction where heat moves from one thing to another by contact. Frying pan cooking (dry) primarily uses conduction, but radiation and convection do play roles. Frying pan cooking (with oil) primarily uses convection, but conduction is involved if the food sticks to the bottom.
Although some of the cooking in a grill is baking or roasting, the nature of grilling is radiation. To demonstrate that, put metal between your heat source and the meat and it will cook differently.