Jakob Hærvig

Focusing on

Thermal energy storage, Carnot batteries, Computational Fluid Dynamics (CFD), OpenFOAM, Data Reduction, Scientific Coding, Python

Research interests

Make the World a better place

Experience

2020 - now Research Group Leader of Multiphase Flows and Heat transfer, AAU Energy, Aalborg University

2022 - now Associate Professor, AAU Energy, Aalborg University

2022 - now Member of steering committee, DaCES (Danish Centre for Energy Storage)

2019 - now Board member, DANSIS (The Danish Society for Industrial Fluid Dynamics)

2018 - 2022 Assistant Professor, AAU Energy, Aalborg University

2014 - 2017 PhD Student, AAU Energy, Aalborg University

• Focus was on fluid dynamics using computational methods. The adhesive behaviour of small micron-sized particles in turbulent flows was investigated by coupling the Discrete Element Method (DEM) to Large Eddy Simulations (LES) using the open-source software LIGGGHTS, CFDEM and OpenFOAM.

2016 - 2016 Visiting Researcher, Technical University Munich, Germany

2013 - 2013 Trainee, Grundfos Holding A/S, Bjerringbro, Denmark

Education

2023 Project Leadership and Management, CBS HD2, Copenhagen Business School, Copenhagen, Denmark.

2019 Adjunct Pedagogy, AAU Learning Lab, Aalborg, Denmark.

• Thesis title: Motivation-Focused Group Facilitation

2014 - 2017 PhD in Fluid Dynamics, Aalborg University

• Thesis title: On the Adhesive Behaviour of Micron-sized particles in Turbulent Flow - A Numerical Study Coupling the Discrete Element Method and Large Eddy Simulations

2012 - 2014 MSc in Thermal Energy and Process Engineering, Aalborg University

• Thesis title: Extending the Existing Modelling Framework for Non-Spherical Particles to Include Flat Plates in Free Fall

Grants

2024 “Danish participation in IEA ES Task 44 - Power-to-Heat and heat integrated Carnot Batteries for ZeroCarbon (industrial) heat supply

• Funding agency: The Energy Technology and Demonstration Programme (EUDP)
• Project period: 01 March 2024 to 1 March 2027
• Role: Project partner

2023 CFD simulations of fully-resolved jet break-up for agriculture use

• Funding agency: Danish e-infrastructure Cooperation (DeiC)
• HPC system: Supercomputer LUMI
• Project period: 01 January 2024 to 31 December 2024
• Role: Principal investigator

2022 DNS studies on frictional drag reduction of ships using air bubbles

• Funding agency: Danish e-infrastructure Cooperation (DeiC)
• HPC system: Supercomputer LUMI
• Project period: 15 March 2022 to 31 August 2022
• Role: Principal investigator

2022 A simulation framework for developing energy storage in stones

• Funding agency: Energy Cluster Denmark (ECD)
• Collaborating partners: Roskilde University, Stiesdal Storage Technologies A/S, Stormning APS
• Project period: 1 June 2022 to 31 December 2022
• Role: Principal investigator

2020 2020 DUO-India Professor Fellowship

• Funding agency: ASEM DUO
• Project period: 15 March 2022 to 15 April 2022

Teaching

• PhD course: “Open-source Computational Fluid Dynamics Course”. More info at opensourcecfdcourse.dk
• BSc course: “Heat transfer”. Interactive course slides available at courses.haervig.com/heat-transfer
• OpenFOAM Days - Two full days of OpenFOAM for all students at AAU. More info and registration at openfoamdays.aau.dk

Computing

• Favourite OS: Debian (Ubuntu) and macOS
• Favourite CFD software: OpenFOAM, blockMesh, snappyHexMesh, LIGGGHTS, CFDEM
• Favourite Programming language: Python (numpy, numba, scipy, matplotlib), bash scripting, MATLAB
• Favourite Workflow includes: Docker, Git, GitHub and GitHub actions

Open-source Projects

• OpenTerrace (creator, contributor, maintainer).
• Guide: OpenFOAM with Docker (creator, contributor, maintainer)
• Guide: OpenFOAM setup with VS Code (creator, contributor, maintainer)
• Guide: OpenFOAM with WSL (creator, contributor, maintainer)
• Guide: OpenFOAM on LUMI (creator, contributor, maintainer)
• QMK firmware (contributor)

Awards

2020 Voted best teacher of the autumn semester by students, Study Board of Energy, Aalborg University, Denmark

2014 Best thesis award handed, Energy Sponsor Programme, Aalborg University, Denmark

Publications

Up-to-date list of publications at Google Scholar

Voluntary work

Coding

• Created the webpage of DANSIS (dansis.dk) to help promote fluid dynamics in Denmark.

Peer-reviewing for journals

• Nature
• Journal of Fluid Mechanics
• International Journal of Heat and Mass Transfer
• International Communications in Heat and Mass Transfer
• Powder Technology

Personal interests

Running (5000 m), Bouldering, Fine art landscape photography (jakobhaervig.com), Scientific coding