Master Thesis

Hydraulic rock drill development relies on system simulations to study overall behaviour and CFD to examine flow inside individual components. This thesis at Epiroc will develop and assess a co-simulation framework linking Hopsan with ANSYS Fluent. The goal is to improve predictions of hydraulic components and transient system behaviour without making computational demands impractical.

The assignment

• Review published approaches to co-simulation and coupling between simulation tools.
• Build a representative rock drill subsystem model in Hopsan and a detailed ANSYS Fluent model of a selected hydraulic component.
• Implement an interface connecting the two simulation environments and demonstrate their combined operation.
• Assess numerical stability, accuracy and computational performance, including comparisons with conventional system simulations.
• Identify where detailed CFD adds value to system-level analysis and propose guidelines for future industrial use at Epiroc.

Who we are looking for

• Master’s students in mechanical engineering, engineering physics, applied mechanics, fluid mechanics, mechatronics or a related discipline.
• Knowledge of fluid mechanics, hydraulics, numerical simulation, CFD, programming or dynamic system modelling is beneficial.
• Experience using Hopsan, ANSYS Fluent, Modelica, MATLAB or Python is an advantage.
• An analytical, curious and organised approach, with an interest in tackling demanding engineering problems together with industry.

What we offer

• Collaboration with experienced colleagues in an environment that encourages ideas and continued learning.
• An opportunity to contribute to simulation-driven product development for safer, more productive and more sustainable mining and construction.
• Scope that can be adapted to the students’ backgrounds and interests.

Practical details

Master’s thesis for two students in Örebro, starting in spring 2027. Apply through the recruitment system with a CV and a brief personal letter explaining your interest; create a profile if needed. Applications are assessed on a rolling basis, and the project may be filled before the deadline of 8 November 2026. Applications by email are not accepted.