Junior ANSYS CFD Engineer (Electrolysis Focus)

Junior ANSYS CFD Engineer (Electrolysis Focus)

Job ID: HE0020- Junior ANSYS CFD Engineer

Description: We are seeking a Junior ANSYS Engineer with a strong foundation in Computational Fluid Dynamics (CFD) and a passion for electrochemical systems, particularly electrolysis. This role emphasizes multiphase flow modelling, where you will simulate complex interactions between gas and liquid phases within electrochemical devices. A key focus will be on generating high-quality meshes and configuring solvers to accurately capture the physics of multiphase transport, bubble dynamics, and flow distribution in electrolysis cells.

Responsibilities:

• Develop and execute CFD simulations for multiphase flow in electrolysis systems using ANSYS Fluent or CFX. 

• Create and refine structured, unstructured, and hybrid meshes for complex geometries using ANSYS Meshing tools (Fluent Meshing, ICEM CFD, etc.) 

• Apply advanced meshing techniques, including: 

  • Boundary layer meshing to accurately capture near-wall flow behavior and gradients. 

  • Local mesh refinement in areas with high shear, complex geometry, or significant phase interactions. 

  • Non-conformal meshing to efficiently connect different mesh types or resolutions across interfaces. 

• Perform mesh quality checks (skewness, orthogonality, aspect ratio) and conduct mesh sensitivity and independence studies to ensure numerical accuracy and robustness. 

• Configure and tune solver settings for various flow regimes, including laminar, turbulent, and multiphase flows 

• Analyse simulation results to extract insights into flow distribution, gas evolution, and transport phenomena. 

• Collaborate with cross-functional teams to integrate simulation findings into product design and optimization. 

• Document simulation methodologies, assumptions, and results for internal and external stakeholders. 

Required Qualification:

• Bachelor’s or Master’s degree in Mechanical Engineering, Chemical Engineering, or a related field. 

• 1–2 years of hands-on experience with ANSYS CFD tools (Fluent, CFX), particularly in multiphase flow simulations. 

• Solid understanding of meshing techniques, with experience or exposure to: 

  • Structured, unstructured, and hybrid meshing approaches. 
  • Use of inflation layers, boundary layer control, and mesh adaptation. 
  • Familiarity with mesh quality metrics such as skewness, orthogonality, and aspect ratio. 

• Good knowledge of solver settings and numerical schemes, including: 

• Basic understanding of pressure-velocity coupling schemes (e.g., SIMPLE, PISO, Coupled). 

• Awareness of discretization schemes (e.g., first-order, second-order upwind). 

• Exposure to steady and transient simulation setups. 

• Understanding of convergence criteria, residual monitoring, and under-relaxation factors. 

• Introductory experience with multiphase flow models and their applications. 

• Familiarity with common turbulence models (e.g., k-ε, k-ω SST) and their use cases. 

• Strong fundamentals in fluid dynamics and transport phenomena. 

• Interest or basic knowledge in electrochemical systems (e.g., electrolysis), with a willingness to learn and grow in this domain. 

Preferred Qualification:

• Exposure to or hands-on experience with electrolyser or fuel cell modelling. 

• Basic understanding of electrochemical reaction kinetics, species transport, and gas-liquid interface behaviour. 

• Familiarity with Multiphysics simulations, especially involving fluid flow, electrochemistry, and heat transfer. 

• Experience or interest in using scripting tools like Python, MATLAB, or journal files to automate simulation workflows and post-processing. 

• Eagerness to learn and apply advanced simulation techniques in real-world electrochemical applications. 

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