Learning Forum

[Jerzy Nawrocki]

Good morning, 

I am doing simple exercise energy exchange between tube filled with water and concrete environment. 
In the inlet is 50C. Temperature of water in outlet is resultant. Water velocity in the tube is 0.2 m/s. 
From the top layer of concrte there is convection adn radiation. Other three layser of concrete is perfecty insulated. 

THE PROBLEM

I can not force to "move" the water along the tube. The only result I got is the +50C at the entrace of concrete. I've spet a plenty of time without results.

 

 

[Rahul Mule]

Hello 
Please check your BCs from Fluent. 
It is very important to build up the coupled simulation in stages as opposed to setting up the 2-way coupled simulation right at the start. This document "General best practices for Coupled Analyses" describes this process and is available here: 
Building Up to a Coupled Analysis (ansys.com)