Pressure drop to temperature

Thanks for sharing the article. I am glad you found the solution to your problem.

Cheers!

Thank you very much. Really I did not solve my problem yet because only a laboratory test will tell me reliable results. It is aparently an easy problem but I did not find anyone interested in doing the calculations . Please read this yesterday text posted in Linkedin to understand. Metal foam simulations to be reliable need to be validated in the first time.

Regards Sergio

I WOULD LIKE TO RECEIVE A QUOTATION FOR THE FOLLOWING CFD SIMULATION (OR EVEN A LAB TEST)

There is a closed steel box 1mx1mx1m . The 4 walls & bottom have thickness 10 mm. Cover has 2 alternatives. The 1st is a closed plate 1x1m like the walls. The 2nd is an aluminum metal foam plate with 10mm thickness and porosity 85%. There are 2 open rectangular yellow holes 0,2m (h) x 0,4m (w), one near the top and other near the cover. Air enters from the bottom hole and leave from top hole. In the case “metal foam” part of the air arriving to the cover goes through the porosities and comes out. Box is inside a room at constant 30oC . In the geometrical center is a small electric resistor dissipating 200 Watts and heating the air. The objective of the experiment is to estimate, for the 2 covers , the values of the air temperatures T1 and T2 (figure) for 2 conditions of ventilation. The 1st is without any fan in the bottom hole (natural ventilation). Air flows slowly from the bottom to the top of the box (hotter). The 2nd is to have, in bottom hole, a small fan forcing an avg air speed of 0,5 m/s. I will need , with the table of results below, the model parameters and a short (easy) explanation of the calculation method.

See figure in this LinkedIn post https://www.linkedin.com/posts/sergiofeitozacosta_cfd-simulation-simscale-activity-7043691472927219712-GPio?utm_source=share&utm_medium=member_desktop

Hi colleague and thank you for the good and clear answer. I knew the forum today. It is great and will be very useful for me. I understood your explanation and will comment just after reading the links you sent. Maybe what is missing to me is there.

But even before this let me explain the overall problem I want to solve. Instead of a metallic filter with holes I will have a metal foam plate like I describe in the item 3 of the short text in this link https://www.cognitor.com.br/CFDexperts.pdf There I explain the problem.

I could find how to calculate the pressure drop in the metal foam. However, I could not find a way to calculate directly the temperature corresponding to it. If you have any comment, it is very welcome

By the way, is it possible to post a pdf in the questions? I saw only the possibility of posting an image.

Sergio