Outsourced ANSYS Fluent CFD simulation for MEP and HVAC teams
ZephyrCFD (KGEP Zephyr) is an outsourced CFD team for MEP and HVAC consultancies without in-house CFD engineers. We deliver ANSYS Fluent 2026 airflow, thermal comfort (ISO 7730) and contaminant dispersion studies in 1–4 weeks, from $2,500, with a 5-business-day fast option. Send CAD, floor plans or sketches; you receive a client-ready PDF report, contours and animations. 20+ projects delivered for clients including CUF Hospitals, Climacer, Systemair, Hospital de Vila Franca de Xira and Hospital de Braga. Free initial consultation with a reply within 24 hours.
Your outsourced CFD team.
Airflow, heat transfer and contamination studies for your designs. From first sketch to client-ready report.
Free consultation · Reply within 24h ·
Already simulated operating theatres, cleanrooms, car parks, canteens
SIMULATED.THEN BUILT.


From your drawings
to a finished report.
01Send what you have
CAD, floor plans or sketches, plus your design conditions. We scope the study with you.
02We simulate
Up-to-date simulation models, chosen for each case — from turbulence to heat and particle transport.
ANSYS Fluent 03You get a client-ready report
PDF report, contours and animations, ready to hand to your client.
Simulations
Delivered
Real projects, built and validated: from hospital operating theatres to large open-plan floors.
Hospital Operating Block
Advanced particle tracking for surgical environments. Patient contamination assessment and particle elimination time quantification. Resolved thermal fields to ensure projected temperature during surgery.

Indoor Arena Thermal Dynamics
Full-scale CFD for large indoor arenas — occupant comfort mapping, underground air supply simulation, and transient temperature field analysis.

Whole Floor Open Space Analysis
Comprehensive airflow study for large open-plan spaces — temperature stratification, age-of-air mapping, and static thermal field assessment.
Projects from $2,500.
Monthly retainers for teams with steady volume. Every study is scoped with you before you commit.
Already know what you need? Configure your project →
Questions teams ask
before they start
What do you need from us to start a simulation?
Ideally CAD and boundary conditions, but we can also start from floor plans, drawings, or approximate dimensions and define the scope with you.
Do you support confidential client and R&D work?
Yes. Project files, media, and deliverables stay inside the dashboard workflow and can be handled under confidential delivery arrangements.
What do we receive at the end of the project?
Depending on scope, you can receive reports, contours, animations, post-processing packs, and executive summaries tailored to the requested use.
How much does an ANSYS CFD simulation cost?
HVAC Standard packages start from $2,500 and HVAC Fast Delivery from $3,000. Custom projects are quoted individually — typically 3× below standard consultancy rates.
How long does a CFD simulation project take?
Fast Delivery projects are completed in 5 business days. Standard engineering packages take 1–4 weeks depending on complexity and scope.
When do I need CFD for HVAC design?
CFD is recommended for early-stage HVAC layout validation, code compliance checks (ISO 7730 thermal comfort and draught rate), retrofit risk assessment, contaminant dispersion analysis, and any project where real-world testing would be costly or impractical.
