HPC for ANSYS Fluent

⚙️ Balanced Mid‑Range Computing Solution for CFD

When your projects outgrow entry‑level hardware but don’t yet need a full enterprise cluster, a balanced mid‑range server is the smart move. This 20‑core (2.50 GHz) platform delivers the parallel throughput and per‑core responsiveness required for 18–30 million element CFD models—ideal for graduate research, small engineering teams, and advanced student projects running ANSYS Fluent, OpenFOAM, or STAR‑CCM+.

With ~25% more cores than 16‑core entry systems, you’ll see shorter wall‑clock times on complex physics and better efficiency for coupled multiphysics workflows (fluid, thermal, structural).

💻 High‑Performance Configuration
Key Specifications

CPU: 20 cores @ 2.50 GHz (server‑class, dual‑socket platform)

Target Mesh Size: 18–30M elements (steady & transient)

Best For: Small teams, graduate labs, advanced coursework/research

Focus: Balanced parallel scaling + strong per‑core speed for pre/solve/post

Why it’s “balanced”: Enough cores for efficient domain partitioning and enough clock speed to keep meshing, preprocessing, and post‑processing responsive.

🚀 Built for Medium‑to‑Large, High‑Fidelity CFD

This system is tuned for workloads that exceed desktop limits and demand credible, publishable fidelity:

Turbulence: RANS (k‑ε, k‑ω SST), hybrid RANS‑LES, DES; LES “starts” where appropriate*

Multiphase & reacting: VOF/Eulerian, cavitation, sprays, combustion

Thermal/CHT: Conjugate heat transfer with detailed materials/interfaces

Transient physics: Time‑accurate aero/thermal events and startups/shutdowns

Design exploration: DOE, parametric sweeps, response surfaces, optimization

*Full‑fidelity LES in the 20–30M cell band is computationally expensive on any platform; use adaptive refinement, smart time‑stepping, and fit‑for‑purpose modeling to maximize payoff.

🧩 Designed for Multiphysics: Fluid ⇄ Thermal ⇄ Structural

Modern programs often require coupled analyses. This platform sustains:

CFD ⇄ Thermal (CHT) for electronics cooling and heat exchangers

CFD ⇄ FEA (one‑/two‑way FSI) for aeroelastic and flow‑induced effects

Co‑simulation pipelines common in R&D and product development

The 20‑core layout provides efficient partition sizing for coupled solvers without starving per‑core performance.

💼 Ideal Use Cases

Aerospace / UAV: external aero, high‑lift, propulsive interactions

Automotive: external aero, underhood/underbody cooling, brake/rotor flows

Energy / Process: burners, combustors, recuperators, turbomachinery stages

Built environment / HVAC: zone ventilation, thermal comfort, wind studies

Electronics cooling: detailed CHT with interface resistances & anisotropy

🔧 Quick Wins to Maximize Throughput

Partitioning: Start around 0.8–1.3M cells per process, then tune after a pilot run.

Solver order: Use first‑order to stabilize, switch to second‑order for accuracy.

Time‑step control: CFL‑guided ramps + dual‑time stepping for transients.

Focused refinement: Target shear layers, recirculation, shocks/gradients; avoid blanket refinement.

Checkpointing: Frequent autosaves protect long runs and enable restartable exploration.

📊 Why Mid‑Range Over Entry‑Level (and Not Enterprise Yet)?

+25% cores vs. 16‑core entry → denser partitioning and better scaling on complex physics.

Higher sustained utilization with multiphase/combustion/FSI workloads.

Meaningfully shorter iteration cycles → more design variants evaluated per week.

Lower total cost and operational simplicity compared to enterprise clusters.

🏁 Final Thoughts

The Balanced Mid‑Range Computing Solution for CFD (20 cores @ 2.50 GHz) is the pragmatic choice when you need serious performance for 18–30M element models—without the cost and complexity of enterprise HPC. It delivers the right mix of parallel scalability and per‑core speed for advanced turbulence, multiphase physics, and coupled thermal/structural analyses.

Scale your simulations—without overspending.
👉 Contact MR CFD