You cannot always see what is happening inside a product.
- Air moves through a component.
- Pressure changes across a passage.
- Heat builds up inside an enclosure.
- Smoke travels through a building.
- Flow separates or recirculates.
- A cooling system may appear functional while critical regions continue to overheat.
These behaviours can be difficult, expensive or sometimes impossible to measure completely through physical testing. This is where Computational Fluid Dynamics provides engineering insight.
At DDSPLM, we provide CFD simulation services for fluid flow, heat transfer, thermal management, airflow, multiphase flow, reacting flow, fire and smoke, rotating machinery, aeroacoustics and other advanced applications. Our focus is on solving the engineering problem and translating simulation results into actionable design information.
What we support
- Fluid flow and pressure distribution
- Pressure-drop and flow-uniformity analysis
- Thermal performance and heat transfer
- Component temperature prediction
- Cooling effectiveness evaluation
- HVAC and airflow distribution
- Multiphase and species transport
- Fire and smoke propagation
- Rotating machinery (fans, pumps, compressors, turbines)
- Reacting and combustion flow
- Electrochemical systems (battery, fuel cell)
- Flow-induced noise (aeroacoustics)
- Fluid-structure interaction — one-way and two-way coupling
- Design comparison and optimization
The simulation approach is selected according to the physics involved and the engineering question being investigated.
Real CFD challenges, real simulation applications
CNG receptacle — transient flow analysis. Transient CFD simulation to evaluate flow behaviour, pressure distribution, temperature variation and mass flow rate across different receptacle designs. The results supported design comparison, validation and optimization virtually before physical evaluation.
Automotive seat ventilation — thermal comfort. CFD simulations comparing ventilated and non-ventilated seat configurations to evaluate airflow distribution, seat-surface temperature, cooling effectiveness and temperature uniformity. The analysis supported evaluation of the cooling concept and provided information for improving passenger thermal comfort.
Fire and smoke — building safety. Transient CFD analysis of fire and smoke propagation through a residential building to evaluate temperature distribution, soot concentration and visibility over time. The results supported fire-safety assessment and informed building- design decisions related to smoke movement and heat management.
Catalytic converter — internal flow distribution. CFD analysis to visualise and evaluate internal flow behaviour and distribution through the converter. The simulation identified flow-distribution characteristics and provided engineering information for component design evaluation and optimization.
Solar load — industrial plant thermal analysis. CFD-based solar-load and airflow simulations considering solar heat gain, heat transfer, temperature variation and airflow distribution. The analysis identified thermally critical areas and supported decisions related to ventilation, thermal management and plant design.
Fan filter unit — airflow uniformity. CFD analysis to evaluate airflow rate, velocity distribution and flow uniformity downstream of the FFU outlet. The simulation highlighted areas of airflow variation and provided a basis for improving distribution in cleanroom environments.
LED and floodlight — thermal and optical analysis. Thermal analysis to predict component temperatures, temperature distribution and potential hotspots under operating conditions. For LED applications, coupled thermal and optical analysis provided insight into both thermal behaviour and optical performance.
Beyond conventional flow analysis
Multiphase flow and species transport — gas-liquid, liquid-solid, free-surface, particle-laden and droplet flows, mixing and species transport.
Reacting and combustion flow — combustion, chemical reactions, heat release and species transport in process and propulsion applications.
Fluid-structure interaction — where fluid forces influence structural deformation or structural motion affects the flow, coupled simulation provides insight into the interaction.
Aeroacoustics — flow-induced noise and acoustic behaviour to identify noise sources and evaluate acoustic performance.
Computational rheology — for non-Newtonian and complex fluids, CFD investigates viscosity-dependent flow behaviour.
Electrochemistry — battery, fuel-cell and electrolyser applications involving electrochemical transport and coupled thermal-electrochemical behaviour.
Rotating machinery — fans, pumps, compressors, impellers and turbines evaluated for rotating-flow behaviour and performance characteristics.
Industries
Automotive and transportation — aerodynamics, thermal comfort, HVAC, underhood thermal management, component cooling, exhaust and CNG systems.
Aerospace and defence — aerodynamics, compressible flow, propulsion, thermal management, cabin airflow and high-temperature applications.
EV and battery systems — battery thermal management, cell and pack cooling, electric motor cooling and power-electronics thermal analysis.
Electronics and semiconductor — electronics cooling, PCB thermal management, airflow distribution, conjugate heat transfer and component temperature prediction.
Industrial machinery — pumps, fans, compressors, valves, impellers, heat exchangers, lubrication and equipment cooling.
Process and chemical — mixing, multiphase flow, species transport, reacting flow, heat transfer and process equipment.
HVAC, buildings and infrastructure — ventilation, indoor airflow, thermal comfort, solar load, temperature distribution and natural ventilation.
Fire and safety — fire and smoke propagation, heat transfer, smoke movement, soot transport, visibility and smoke extraction.
Data centres — rack airflow, server cooling, hot-aisle/cold-aisle analysis and thermal hotspot identification.
Cleanrooms — FFU airflow, cleanroom ventilation, particle transport, contamination control and temperature uniformity.
Marine — hydrodynamics, propulsion, external flow, equipment cooling and engine-room ventilation.
How we approach a CFD project
01 — Understand. We review the product, geometry, operating conditions, performance targets and available test data.
02 — Define the simulation strategy. The appropriate physical models, material properties, boundary conditions, meshing strategy and simulation methodology are established.
03 — Simulate. The product or system is evaluated under relevant operating conditions.
04 — Analyse. Results — velocity, pressure, temperature, heat transfer, species distribution, phase behaviour — are examined against the engineering requirements.
05 — Improve. Where required, design alternatives and operating conditions are compared to identify opportunities for better performance.
The focus is not on producing CFD plots. It is on understanding what is happening, why it is happening and what can be changed.
Tooling
We deploy Simcenter STAR-CCM+ for general-purpose CFD, Simcenter FloEFD for embedded-CAD thermal and flow studies, and Simcenter Flotherm for electronics-cooling specifically. The tool depends on the problem geometry and the turnaround the customer needs.
Why DDSPLM for CFD simulation
- Engineering-led — the simulation approach is matched to the physics and the engineering question, not applied as a template. Project experience ranges from CNG receptacles and automotive thermal comfort to fire and smoke, industrial airflow, cleanroom ventilation and LED thermal management.
- Same tools you’d use in-house — Simcenter STAR-CCM+, FloEFD and Flotherm. Not a different toolchain from what your team would deploy.
- Siemens Smart Expert Partner — partner-grade certification on the simulation portfolio.
- India delivery, global standards — teams in Gurugram, Hyderabad, Bengaluru and Pune.
Engagement models
| Model | When it fits |
|---|---|
| Fixed-scope project | Defined deliverable with a defined deadline. |
| Bench-strength augmentation | Your team owns the project; we add solver-bench capacity. |
| Solver-time-as-a-service | You have engineers but not the licences or compute. |
Looking for the software instead? See STAR-CCM+, FloEFD, or Flotherm.