Hello, Im runing a simulation about a flow that enters a cilindrical reactor by a cilindrical ( smaller radius) cylinder.
I had solved the velocity profile with the turbulent flow physics and obtained good results. But when solve the temperature profile get strange results. negative temperatures arise.
In the problem all walls of the reactor are at 1200[°C] and the fluid enters at 600[°C], also under certain boundary conditions the negative temperatures are not present, but still get temperatures smaller than the feed in the center of reactro, where the flow is greater.
Im also suspicious about the temperature boundary condition in the heat transfer module, because the negative values of temperature seems to originate there, I have probed a variaty of alternatives and the results obly goes wrong.
Anyone have an idea or can supply a example file??
Please Help :)
I had solved the velocity profile with the turbulent flow physics and obtained good results. But when solve the temperature profile get strange results. negative temperatures arise.
In the problem all walls of the reactor are at 1200[°C] and the fluid enters at 600[°C], also under certain boundary conditions the negative temperatures are not present, but still get temperatures smaller than the feed in the center of reactro, where the flow is greater.
Im also suspicious about the temperature boundary condition in the heat transfer module, because the negative values of temperature seems to originate there, I have probed a variaty of alternatives and the results obly goes wrong.
Anyone have an idea or can supply a example file??
Please Help :)