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Does it flow? 

Made changes to model. Removed pins at the turn and put fins, removed some pins at the inlet and made also made inlet corners less round. 

This sim was set up with Pressure inlet + Pressure outlet. I was told that this 'boundary condition combination is very poor in terms of stability'. I don't think the data is any good? 

It is a fluid heat transfer block/water boiler block. The block goes onto heat source, water gets pumped into it, and aim is to heat up the water.

To increase the surface area there are lots of fins inside, and fluid needs to turn 180, so the fins at the turn are in a radial pattern.

I wanted to simulate the water flow to see what it might do, and see if there are any massive dead spots.

Purpose: Validate temperature results of arbitrary heat sink at a variety of air flow rates using product/test data provided by manufacturer.

Flow through a curved heat sink with various fin configurations.

Looking at flow and heat transfer through curved heat sink shapes. Conjugate heat transfer and incompressible flow. Radial inlets and axial outlets (probably).

Air flow through a variety of circular heat sinks with varied shapes and sizes of inlets and outlets.

This is a conjugate heat transfer study in an electronics cooling project. With respect to the incoming air flow through the enclosed tunnel on the circular pin type heat sink design, and maximum component temperature, maximum power limit for the component was calculated.

study state and transient thermal analysis of heat sink, finding temperature distribution over the fin surface

Preliminary prototype simulations for use in TEG power supply system.

heat sink design | SimScale Project Library | Page 1