- #1

GMVitus

- 3

- 0

A while ago, we discussed a real-time simulation of an oil cycle within a combustion engine. Back then I was focusing on volume flow and pressure and you were incredibly helpful in coming up with the required formulas, so thank you again for your help!

I'm now moving to the next stage and that is modeling the heat exchange between different parts of the engine. I am looking for a set of formulas that describe by how much a part heats up, or cools down over time.

I'm having a hard time finding the relevant formulas, and the fact that lots of the terms in the field are so similar to each other doesn't really help.

Let's simplify the simulation by substituting the engine as a solid block of steel with a contact area A to the oil. Both mediums have their respective properties like density, mass, various heat parameters etc. I need a formula that tells me the temperature of each of the two components after each simulation step Δt.

What I found so far is that the problem is two-folded, where I first have to work out the rate of heat flow between the two parts and then apply this power to each component individually, based on their respective properties.

My questions is whether my thinking so far is correct or not. Furthermore I'd appreciate any suggestions as to what set of formulas to use for this problem.

Cheers,

Vitus