ANSYS Fluent
High-fidelity CFD solver for turbulent flow, heat transfer, multiphase, and combustion simulations in demanding industrial applications.
Official websiteAbout ANSYS Fluent
ANSYS Fluent is a computational fluid dynamics (CFD) solver recognized globally for its accuracy, robustness, and breadth of physical models. It handles laminar and turbulent flows, heat transfer, combustion, multiphase systems, and aeroacoustics within a unified framework.
Shirsh TechnoSolutions employs ANSYS Fluent for high-fidelity industrial CFD engagements where solver stability and validated turbulence models are critical — including conjugate heat transfer in electronics cooling, external aerodynamics for HVAC equipment, and reacting flow simulations in combustion systems.
Key features
Polyhedral and mosaic meshing technology (Fluent Meshing)
Pressure-based and density-based coupled solvers
User-defined functions (UDFs) for custom physics
Adjoint solver for shape optimization
GPU-accelerated solving for transient simulations
Capabilities
Steady-state and transient RANS, LES, and DES turbulence modeling
Conjugate heat transfer (CHT) with solid-fluid coupling
Multiphase flow modeling (VOF, Eulerian, DPM)
Species transport and non-premixed combustion
Aeroacoustic noise prediction (FW-H analogy)
Applications
External aerodynamics and drag reduction studies
Electronics thermal management and cold plate design
HVAC airflow distribution and comfort analysis
Combustion chamber design and emissions prediction
Multiphase separator and cyclone performance evaluation
Target users
Target users
Projects powered by this tool
Swing Check Valve CFD: Pressure Drop and Flow at Every Disc Opening
Swing check valve CFD in ANSYS Fluent. Pressure drop across the flow range and flow at each disc opening, with a documented method for the valve maker.
ReadCFD Airflow Study of a Bench-Top Laboratory Fume Hood
Steady RANS CFD of a bench-top fume hood at two sash positions, used to understand how it captures fumes and to check a revised liner design.
ReadCFD and FEA Root-Cause Study of Purlin Defects in a Solar MMS
Root-cause study of purlin defects in a solar MMS, with ANSYS Fluent wind loads mapped into full-table FEA to find which bolted joints actually govern.
ReadCFD of Mixing and Heat Transfer in a Jacketed Agitated Reactor
MRF CFD of a jacketed reactor with dual hydrofoil impellers and a bottom tickler, checking circulation, dead zones and wall heat transfer before fabrication.
ReadCFD Analysis of Wind Loading on Rooftop Solar PV Arrays
Rooftop solar wind CFD comparing building layouts and array sizes, giving pressure data on both panel faces for structural design.
ReadCFD of Ventilation and Exhaust Gas Dispersion in a Basement Car Park
CFD of airflow and exhaust gas dispersion in an enclosed basement car park, used to check the ventilation layout and place CO sensors.
ReadFloating Solar Engineering: CFD Wind Loads and Hydrostatic Buoyancy FEA of Panels and Floats
Floating solar engineering: CFD wind loads on every panel and float in ANSYS Fluent, plus hydrostatic buoyancy, draft and float response by FEA.
ReadVortex Shedding Check of a Ground-Mounted Solar Structure with Wind CFD and Modal FEA
Solar structure vortex shedding check with transient CFD in ANSYS Fluent, CFD wind pressures mapped into FEA and a modal study of a fixed-tilt MMS.
ReadBESS Container CFD and Structural FEA: Cooling Airflow, Wind and Seismic Checks
CFD of cooling airflow around battery racks and FEA of the container for wind and seismic loads, so a BESS integrator could fix its layout early.
ReadSingle-Axis Solar Tracker CFD and FEA: Wind Pressure Mapping and Structural Qualification
Single-axis solar tracker CFD and FEA: wind pressures at three tilt positions mapped onto a nonlinear ANSYS model, plus an IS 800 pivot bolt check.
ReadTransient CFD of a Controlled Cooling Conveyor for Hot Steel Castings
Transient CFD of a casting cooling conveyor: blower jets and casting temperature tracked zone by zone to size the blowers before the line was built.
ReadRefinery Static Mixer CFD: Multiphase Mixing and Pressure Drop Before Supply
Multiphase CFD of a refinery static mixer in ANSYS Fluent. A reworked element layout gave a stable flow and the mixer was cleared for supply.
ReadData Centre Cooling CFD: Airflow and Aisle Temperatures in Contained Rack Rows
Data centre cooling CFD of contained rack rows with in-row coolers. Airflow and aisle temperatures compared across seven rack layouts.
ReadArticles featuring this tool
Electrolyser Halls: What Air Changes Can and Cannot Do for Hydrogen
A room-average check can show a small hydrogen leak diluted to a few percent of the LFL, while a larger hole in the range IEC 60079-10-1 works with fills the same room past the LFL in under four minutes. We set out what the 2020 edition asks for and run the check on a generic electrolyser room.
ReadWhy Fixed-Tilt Ground-Mount Solar Structures Fail
Fixed-tilt ground-mount is the structure everyone treats as solved. No moving parts, a straight load path from module to rail to post to ground, a static wind check, done. That reputation for simplicity is precisely why these structures fail, not from exotic physics, but from foundations pulled out of the soil, connections detailed for the wrong load direction, slender members that buckled under uplift, and corners that saw far more wind than a borrowed coefficient ever admitted. Walk the load path with a failed array in front of you and the causes are rarely mysterious. Here is how to read the damage, and the analysis chain that would have caught it on paper.
ReadWhy Single-Axis Solar Trackers Need FEA, CFD and Aeroelastic Analysis Beyond IS 875
A single-axis solar tracker can clear every line of IS 875, pass its static frame analysis, and still fail in a windstorm that never reached the code design speed. The reason is uncomfortable but simple: the code hands you a static pressure, and the structure that tore apart was responding to a dynamic, fluid-structure problem the code was never written to see. This is sharpest with single-axis trackers, which behave less like a stiff steel frame and more like a bridge deck on a torsional spring. Here is where IS 875 stops, where FEA and CFD pick up, and why "passes the code" and "survives the wind" are two different questions.
ReadRooftop Solar EPCs: Why Code-Compliant Arrays Still Fail in Wind
Rooftop arrays designed to IS 875 still lose modules in storms, and the EPC is the one called back to site. The code gives one coefficient for the whole array, but the wind does not load a roof that way. Six OpenFOAM cases show where the load really goes, and what an EPC should change before the clamps and anchors are bought.
ReadLeveraging OpenFOAM for Cost-Effective Industrial Fluid Analysis
How open-source CFD delivers commercial-grade accuracy for industrial flow and thermal simulation, without per-seat licensing constraints.
ReadFour Quiet Ways the IS 875 Wind Load Goes Wrong on a Solar Array
The wind-load calculation almost never fails an audit. It fails the structure. IS 875 (Part 3) is a sound loading code, and the arithmetic in most reports is right. What moves the answer is a handful of small choices in how the code gets applied, and on a light tilted array those small moves decide which members are under-built. Here is the chain done properly, and the four places it usually slips.
ReadHow to Check a Cold-Formed Solar Mounting Structure to IS 801: A Step-by-Step Guide
Most ground-mounted solar structures in India are made from cold-formed steel: thin steel sheet bent into channels and hat sections. Engineers find the wind load from IS 875 Part 3, then check the steel using IS 801. Two mistakes are very common. First, engineers use the full cross-section, but thin steel does not work that way: part of it buckles early, so the code makes you use only the "effective" part. Second, engineers check only the steady (static) load and skip the moving (dynamic) effects. This guide explains both problems in simple steps. It then checks the four main members of a solar structure: post, rafter, bracing, and a 1 mm hat purlin: with full numbers, so you can see exactly where the common shortcuts go wrong.
ReadHot-Aisle Containment: What CFD Shows That Rack Inlet Sensors Miss
A rack inlet sensor at mid-height can read 20 °C on every rack while 28.7 percent of the inlet area is above the 27 °C recommended limit. A small OpenFOAM study of one rack row, with and without hot-aisle containment, shows where the hot air gets in and why containment only helps once the airflow matches the racks.
ReadWhy a Cleanroom Can Pass Certification and Still Contaminate Product
A particle count taken at a handful of certified sample points tells you the room is clean where you measured. It says nothing about the stagnant corner behind a filling line, the slow recirculating loop above a microscope, or the pocket of air near a return grille that holds onto contamination far longer than the air-change rate suggests. This is where CFD earns its place. By resolving the actual velocity field and tracking how particles move through it, simulation shows you the air a cleanroom forgets: the regions that pass paperwork but quietly drive your defect rate. With EU GMP Annex 1 now expecting monitoring locations to be justified by risk assessment and airflow visualisation, that picture has gone from useful to expected.
ReadWhy a Simulation Report Should Show Its Mesh Check on Page One
Most simulation reports bury the mesh check in an appendix, if they include it at all. I think it belongs on page one, beside the number the decision depends on. Here is why, and what that block should contain.
ReadAnnex 1 Clean-Up Period: Where a 20-Minute Pass Can Mislead
EU GMP Annex 1 sets a clean-up guidance of less than 20 minutes, but the result only holds where it is measured. A two-zone check on a generic Grade B room shows the main zone clearing in under 10 minutes while a poorly swept pocket takes 30.
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