OCPFoam

An open source CFD software for the flow and thermal analysis of OCP (Open Compute Project) servers. Internal flow field is simulated using a hexahedra mesh with 5.98 million cells.

Figure 1. Three-dimensional, front and back views of the Leopard V3.1 model of OCP server.

This repository provides an object function to check whether the solution reachs steady-state considering three conditions. The first and second conditions are relative tolerance between two successive iterations and maximum iteration number, respectively. The last condition, which is proposed here, checks the slope of the trendline in the log-scaled space.

Figure 2. Residual control procedure residuals, normalized residuals and the last 20% of normalized residuals with linear approximations. (Sp = -0.038, SUx = -0.015, SUy = -0.03, SUz = -0.033)

The second object function calculates average pressure over face zones created at the inlet and outlet of a server.

Figure 3. Computational domain and boundaries of the computational domain.

Usage

Step 1. Compile the library in OpenFOAM-8.

$ ./Allwmake

Step 2. The desired tutorial is entered into the folder and the case is run.

$ cd tutorials/pitzDailyFaceZoneAverage

$ ./Allrun

$ cd tutorials/pitzDailyResidualControl

$ ./Allrun

Addition. To delete the library:

$ cd ../OCPFoam

$ ./Allwclean

Paper

Dogan A, Yilmaz S, Kuzay M, Yilmaz C, Demirel E: CFD modeling of pressure drop through an OCP server for data center applications. Energies 2022.

Underlying Data

Zenodo: OpenFOAM cases of the paper " CFD modeling of pressure drop through an OCP server for data center applications " [Data Set], https://www.zenodo.org/deposit/6342699

Developers

Aras Dogan

Sibel Yilmaz

Mustafa Kuzay

Prof. Dr. Ender Demirel

Acknowledgements

This study is part of a project that has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 956059

Licence

Distributed using the GNU General Public License (GPL), version 3; see the LICENSE file for details.