A heat exchanger is a device used to transfer heat between two or more fluids. The fluids can be single or two phase and, depending on the exchanger type, may be separated or in direct contact. Devices involving energy sources such as nuclear fuel pins or fired heaters are not normally regarded as heat exchangers although many of the principles involved in their design are the same.
ANSYS CFX – Heat Exchanger – Tutorial
The blocking feature in ANSYS ICEM CFD provides a projection-based mesh-generation environment. All block faces between different materials are projected to the closest CAD surfaces. Block faces within the same material can also be associated to specific CAD surfaces to enable the definition of internal walls