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Surface Simulation

445 bytes added, 1 year ago
→‎Models: Wrote section for Liquid Flow
===Material Phases===
 
Universe Sandbox tracks three [https://en.wikipedia.org/wiki/Phase_(matter) phases] of a surface material (either water or carbon dioxideCO<sub>2</sub>) across the surface of the object. At every [[Time Step|time step]], at every point on the surface map, Universe Sandbox calculates how much of this material will exist as a solid, liquid, or gas. The temperatures at which the material changes between these phases (e.g., the [[Boiling Point]] or [[Freezing Point]]) depend on several properties of the object, including its [[Surface Pressure]].
 
The amount of material that exists as a solid at a given point on the surface is represented by the Ice Thickness, the amount
 
===Liquid Flow===
 
The movement of liquid material (either water or liquid CO<sub>2</sub>) across the surface of the object is simulated with a method similar to the one used to simulate [[Temperature Calculation#Surface Temperature|heat diffusion]] and [[Surface Simulation#Vapor Flow|vapor flow]]. The rate at which liquid flows in each direction is determined by the difference in elevation in nearby regions, as well as the [[Surface Gravity]] of the object.
 
==Limitations==

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