Noble Gas

This highly simplified model illustrates the behaviour of gas particles under the influence of various physical parameters:

• Movement and collisions: The particles move in two-dimensional space and bounce elastically off the side walls as well as each other. During collisions with one another, a physical exchange of momentum takes place.
• Gravity: A variably adjustable gravitational force continuously pulls the particles downwards.
• Temperature (heating at the bottom): The bottom edge of the simulation acts as a heat source. When particles touch the bottom, they absorb thermal energy. Their resulting rebound velocity is proportional to the square root of the set temperature 𝑣 ∝ √𝑇.
• Energy loss (cooling at the ceiling): If a particle hits the top edge, its vertical velocity is reduced by 50 %. This simulates an energy loss, for example due to cooling at high altitudes.