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Update
Sim run1 was set up as 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?
Sim run2 was set up as velocity inlet + pressure outlet. I was told this was better and should stop any diverging. 

Does it flow? 
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.

Seems like there is a lot of interesting things going on.

Optimized Thermal Comfort for an International Level Sports Complex

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.

this project contains the thermal analysis of a worm gearbox

heat transfer tube to thin metal surface, mixed material

I will make the simulation of the heat transfer for the design of a cryostat

Simulação de Condução de Calor 1D com Convecção

Update.
Made big changes to model. Went with fin design, instead of a pin design. 

Changed sim set up. Use Velocity in and Pressure out. 

Does it flow? 

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.

Project goal is to analyze heat transfe.
Conjugate Heat Transfer. To analyze the thermal behavior of a lithium-ion battery pack under varying operating conditions and optimize its cooling system.

the goal of this project is to observe different thermal zones of an engine block

Designed and optimized a U-type heat exchanger using advanced thermal analysis techniques. The project involved calculating and improving the overall heat transfer coefficient and ensuring efficient thermal performance. By analyzing factors such as temperature effectiveness, pressure drops, and fouling, the design was refined to enhance energy efficiency and reduce operational costs. The project also focused on selecting durable materials and compact design strategies to extend the lifespan of the heat exchanger while minimizing maintenance needs.

thermal management for spacecraft propulsion

Simulação de perda de calor de tubagem isolada

Model the impact of their solar shading systems and heat gains directly through cloud-native computational fluid dynamics (CFD) simulation.

Transferencia de calor por fluidos en estado liquido

Elevación de la temperatura del aceite en una chumacera.

Assessing simscale thermomechanical module.

heat transfer | SimScale Project Library | Page 1