INDEPENDENT ENGINEERING CONSULTING · ZAGREB, CROATIA
CFD that holds up to scrutiny.
Flow, heat-transfer and aerodynamic simulation by an aeronautical engineer — from OpenFOAM LES and shock-capturing analysis to industrial ventilation. I deliver documented, reviewable engineering work that helps your team make decisions.
Bojan Vidović · M.Sc. Aeronautical Engineering · Independent engineer, Zagreb
External-flow simulation · DrivAer model
Aircraft panel · reverse engineeringENGINEERING SERVICES
Engineering services
Five areas of work, from industrial flow systems to CAD reconstruction. Each project starts with the geometry, operating conditions and the specific question to be answered.
Fluid Systems & Industrial Equipment
Pressure losses, flow distribution, ventilation, fans and process equipment.
Aerodynamics & Hydrodynamics
Lift, drag, flow separation and fluid loads on aircraft, vehicles and marine components.
Cooling & Thermal Management
Temperature prediction, cooling performance, heat transfer and hot-spot investigation.
Mechanical Design & Product Validation
Mechanical design, stresses, deflection and structural checks before manufacture.
3D Scanning & Reverse Engineering
3D scanning, surface reconstruction and usable CAD models for existing parts.
COMMON ENGINEERING PROBLEMS
Investigations for specific equipment problems
If a prototype or system is not performing as expected, start with the problem rather than the software used to analyse it.
Heat Exchanger Performance Investigation
Pressure drop higher than predicted? Heat transfer lower than expected? I investigate the flow and thermal behaviour behind the discrepancy.
View investigation →FLUID SYSTEMS & INDUSTRIAL EQUIPMENTFlow Distribution & Pressure-Loss Analysis
Excessive pressure loss, uneven branch flow or recirculation? I examine where the losses occur and how geometry affects distribution.
View investigation →FLUID SYSTEMS & INDUSTRIAL EQUIPMENTIndustrial Mixing & Reactor Flow Analysis
Poor mixing, stagnant regions or an unsuitable residence-time distribution? I evaluate the internal flow and the effect of proposed design changes.
View investigation →SELECTED PROJECTS
Selected engineering projects
Each project contains selected geometry, meshes, results, videos or CAD work. Open a case study for the technical detail.
See all seven projects →
CLIENT PROJECT · INDUSTRIAL CFD · AIR QUALITYUnderground Station Ventilation
How source position and exhaust arrangements affect ventilation and contaminant transport in an underground station.
CLIENT PROJECT · 3D SCANNING · CADAircraft Cockpit Reverse Engineering
3D scanning and CAD reconstruction of a Beechcraft instrument panel.
BENCHMARK STUDY · AERODYNAMICS · CFDAutomotive Aerodynamics
DrivAer vehicle geometry, local mesh refinement, pressure field and drag solution compared in an interactive CFD study.
STRUCTURAL FEA · REVERSE ENGINEERING · WELDSWeld Seam Stress Analysis
Scan-based finite-element study showing how weld distortion changes local stress concentration.
CLIENT PERSPECTIVE
Client feedback
A selection of reviews from completed Upwork contracts. The reviews page includes the full text and supporting screenshots.
“My company had a complicated CFD analysis to perform. Bojan successfully modeled it, provided insightful feedback and re-ran the analysis after we adjusted things based on his feedback. He provided a comprehensive report at the finish and was professional at all times. The project was at times slow but this may have been due to the complexity. I would re-use Bojan and recommend him for other CFD projects.”
“Amazing CFD skills. Definitely will hire again.”
“Great communication and high quality of work.”
HOW I WORK
How I approach an engineering study
I define the scope and required inputs before modelling, check the numerical setup, and document what the results do and do not establish.
Define the scope
Agree on the engineering question, available data, operating conditions and deliverables.
Prepare the model
Prepare geometry, mesh, boundary conditions and the required simulation cases.
Check the results
Review convergence, numerical sensitivity and the limits of the assumptions used.
Report the findings
Provide results, interpretation, limitations and recommendations for the agreed scope.
FOR ENGINEERING TEAMS
Specialist analysis when your team needs extra capacity
I support product-development groups and established consultancies with defined CFD, numerical-analysis, geometry-reconstruction and technical-review tasks. I work with supplied CAD and requirements, agree input handoffs, and deliver documented results for your engineering team to review.
Subcontracted engineering work
Scope, confidentiality, checkpoints, deliverable formats and change requests are agreed before work starts.
Discuss a subcontracting requirement →WORK WITH HELICON
Have an engineering project to discuss?
Send a brief description of the equipment, operating conditions and what you need to find out. We can then agree on scope and deliverables.