# How exactly is heat transferred?

• ping_nl
In summary, the conversation discusses the idea of using a computer model to simulate heat in a billiard-ball-universe in 2D. The individual wants to understand the motion equations, forces, and collisions involved in heat transfer. They consider using circles/dots to represent air particles and a surrounding rectangle to represent the walls of an oven. The concept of heat being the average speed of molecules is also mentioned. There is a question about whether increasing the speed of particles bouncing off the wall is an accurate way to represent heat transfer, or if shooting particles into the oven would be more suitable. The individual also wonders if heat can be modeled using lines and circles. The response confirms that increasing the speed of particles bouncing off the wall is a correct way
ping_nl
Hi!
I am working on a computer model of a billiard-ball-universe in 2d in order to understand the motion equations, forces, collisions etc. I want to try to simulate heat using circles/dots representing air particles, colliding among themselves and a surrounding rectangle representing the walls of an 'oven'. I read that heat is the average speed of the molecules.

As an oven warms up:

Would simply increasing the speed of a particle as it bounces off the wall be a correct way to represent heat transition? Or possibly shoot particles from the wall into the oven? Would these particles be photons or molecules themselves?
Can you model heat using lines and circles at all or doesn't that come close?
Any help would be appreciated. :!)

ping_nl said:
Would simply increasing the speed of a particle as it bounces off the wall be a correct way to represent heat transition?
You got it - its like lobbing tennis balls at a vibrating wall - the wall is going to kick them away faster than they came at it.

ok thanks, and would the relationship between the wall's temperature and the average gained outgoing speed of the particle be linear?

Last edited:

## 1. How is heat transferred?

Heat is transferred through three main methods: conduction, convection, and radiation. Conduction occurs when heat is transferred through direct contact between two objects. Convection is the transfer of heat through the movement of fluids, such as air or water. Radiation is the transfer of heat through electromagnetic waves.

## 2. What is the difference between conduction and convection?

Conduction is the transfer of heat through direct contact, while convection is the transfer of heat through the movement of fluids. Convection is more effective in transferring heat over longer distances compared to conduction.

## 3. How does insulation affect heat transfer?

Insulation helps to reduce heat transfer by slowing down the movement of heat through conduction and convection. This is because insulation materials have low thermal conductivity, meaning they are poor conductors of heat.

## 4. How does heat transfer affect temperature?

Heat transfer can lead to a change in temperature. When heat is transferred from a warmer object to a cooler object, the cooler object will experience an increase in temperature. Conversely, when heat is transferred from a cooler object to a warmer object, the warmer object will experience a decrease in temperature.

## 5. What is the role of heat transfer in everyday life?

Heat transfer plays a crucial role in our daily lives. For example, it is the reason why we feel warm when we stand close to a fire or why our food cooks when we place it on a hot stove. It also helps to regulate our body temperature and is used in various industries such as heating and cooling systems, cooking, and transportation.

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