Long-term STAR-CCM+ Expert Needed – Automotive Cabin Windshield Fogging & Demisting CFD Simulation (Multiple Ongoing Projects)
Budget: $250 – $750 USD
Long-term STAR-CCM+ Expert Needed – Automotive Cabin Windshield Fogging & Demisting CFD Simulation (Multiple Ongoing Projects)
Job Description
We are looking for an experienced STAR-CCM+ engineer to build a transient CFD model for automotive cabin windshield fogging and demisting simulation.
This is not a one-time job — we have multiple ongoing CFD & HVAC simulation projects and are seeking long-term collaboration with a skilled expert who can handle advanced STAR-CCM+ setups independently.
Objective
Develop a fully working STAR-CCM+ project that can:
Quantitatively predict fog layer thickness, liquid fraction, and spatial distribution on the windshield.
Capture condensation/evaporation kinetics under dynamic time-dependent inlet conditions.
Analyze demisting effectiveness for both external and internal circulation modes.
Inputs (Provided by Us)
Cabin model: *.key (mesh/geometry)
4 human dummy models: *.obj, *.nas (unprocessed)
National standard reference for A/B windshield zones (for post-processing & reporting)
Scope of Work
Import & prepare cabin + 4 dummies in STAR-CCM+ (region setup, cleaning, surface assignments).
Configure physics: humid air + liquid water multiphase, condensation/evaporation, species transport, and conjugate heat transfer.
Define transient boundary conditions with dynamic inlets (temperature / RH / velocity vs. time, from tables/CSV).
Include external environment effects (ambient T/RH, vehicle speed influencing external flow).
Model two ventilation modes:
External circulation: rear single exhaust outlet.
Internal circulation: return inlet above co-driver.
Assign humid-air outlets at each dummy’s mouth (mass flow, T, RH).
Implement post-processing to show A/B zone results separately.
Deliver a runnable project (no video recording required).
Model Outputs (Acceptance Criteria)
Time-history plots and contours for:
Fog layer thickness on the windshield.
Liquid fraction / water film distribution.
Condensation and evaporation rate fields.
Separate A/B zone metrics (maps + tables).
Comparison between External vs Internal circulation (plots + data).
Ability to easily re-run with modified inlet tables (T/RH/Velocity).
Deliverables
STAR-CCM+ packaged project, including:
Geometry, regions, mesh, physics continua, field functions, reports, monitors, scenes.
Time-series boundary profiles (T/RH/Velocity).
Post-processing templates (fog layer, liquid fraction, A/B zones).
Technical note/report (PDF) explaining assumptions, models, boundary setup, and how to modify parameters.
Readme guide (“how to run”) and parameter checklist.
After-delivery support: assist us in running and verifying the project locally (no recording needed).
Optional (Nice to Have)
Radiation heat transfer on cabin surfaces (if relevant).
Thin-film condensation model for film thickness reporting.
Java macros for automatic A/B zone export.
Timeline
Delivery before October 21, 2025 (Tuesday), 24:00 local time.
What to Include in Your Bid
Your STAR-CCM+ experience (multiphase, condensation, evaporation, HVAC/cabin).
A short technical plan (physics models, demisting setup, solver control).
STAR-CCM+ version you use.
Delivery time, cost, and whether you can take more similar projects later.
Note
We handle many STAR-CCM+ / CFD projects every month (HVAC, fogging, condensation, thermal comfort, etc.).
If you can deliver high-quality and efficient models, we will work with you long-term and send continuous paid projects.
Keywords (for better visibility)
STAR-CCM+, CFD, HVAC, Cabin, Demisting, Fogging, Automotive, Condensation, Evaporation, Multiphase, Transient Simulation, Thermal Comfort, Windshield, Water Film,Computational Fluid Dynamics
Ansys
Thermal Analysis
Automotive Engineering
Mechanical Engineering
Finite Element Analysis
Aerospace Engineering
Thermodynamics
Mathematics
Simulation
Job Description
We are looking for an experienced STAR-CCM+ engineer to build a transient CFD model for automotive cabin windshield fogging and demisting simulation.
This is not a one-time job — we have multiple ongoing CFD & HVAC simulation projects and are seeking long-term collaboration with a skilled expert who can handle advanced STAR-CCM+ setups independently.
Objective
Develop a fully working STAR-CCM+ project that can:
Quantitatively predict fog layer thickness, liquid fraction, and spatial distribution on the windshield.
Capture condensation/evaporation kinetics under dynamic time-dependent inlet conditions.
Analyze demisting effectiveness for both external and internal circulation modes.
Inputs (Provided by Us)
Cabin model: *.key (mesh/geometry)
4 human dummy models: *.obj, *.nas (unprocessed)
National standard reference for A/B windshield zones (for post-processing & reporting)
Scope of Work
Import & prepare cabin + 4 dummies in STAR-CCM+ (region setup, cleaning, surface assignments).
Configure physics: humid air + liquid water multiphase, condensation/evaporation, species transport, and conjugate heat transfer.
Define transient boundary conditions with dynamic inlets (temperature / RH / velocity vs. time, from tables/CSV).
Include external environment effects (ambient T/RH, vehicle speed influencing external flow).
Model two ventilation modes:
External circulation: rear single exhaust outlet.
Internal circulation: return inlet above co-driver.
Assign humid-air outlets at each dummy’s mouth (mass flow, T, RH).
Implement post-processing to show A/B zone results separately.
Deliver a runnable project (no video recording required).
Model Outputs (Acceptance Criteria)
Time-history plots and contours for:
Fog layer thickness on the windshield.
Liquid fraction / water film distribution.
Condensation and evaporation rate fields.
Separate A/B zone metrics (maps + tables).
Comparison between External vs Internal circulation (plots + data).
Ability to easily re-run with modified inlet tables (T/RH/Velocity).
Deliverables
STAR-CCM+ packaged project, including:
Geometry, regions, mesh, physics continua, field functions, reports, monitors, scenes.
Time-series boundary profiles (T/RH/Velocity).
Post-processing templates (fog layer, liquid fraction, A/B zones).
Technical note/report (PDF) explaining assumptions, models, boundary setup, and how to modify parameters.
Readme guide (“how to run”) and parameter checklist.
After-delivery support: assist us in running and verifying the project locally (no recording needed).
Optional (Nice to Have)
Radiation heat transfer on cabin surfaces (if relevant).
Thin-film condensation model for film thickness reporting.
Java macros for automatic A/B zone export.
Timeline
Delivery before October 21, 2025 (Tuesday), 24:00 local time.
What to Include in Your Bid
Your STAR-CCM+ experience (multiphase, condensation, evaporation, HVAC/cabin).
A short technical plan (physics models, demisting setup, solver control).
STAR-CCM+ version you use.
Delivery time, cost, and whether you can take more similar projects later.
Note
We handle many STAR-CCM+ / CFD projects every month (HVAC, fogging, condensation, thermal comfort, etc.).
If you can deliver high-quality and efficient models, we will work with you long-term and send continuous paid projects.
Keywords (for better visibility)
STAR-CCM+, CFD, HVAC, Cabin, Demisting, Fogging, Automotive, Condensation, Evaporation, Multiphase, Transient Simulation, Thermal Comfort, Windshield, Water Film,Computational Fluid Dynamics
Ansys
Thermal Analysis
Automotive Engineering
Mechanical Engineering
Finite Element Analysis
Aerospace Engineering
Thermodynamics
Mathematics
Simulation