CFD Consulting services

ArcoFluid Consulting LLC offers a complete range of computational fluid dynamics (CFD) consulting services including laminar, turbulent, steady-state, transient, mixing, multiphase, critical fluids, crystal growth, combustion, conjugate heat transfer and condensation/evaporation analyses. Our CFD engineering consultants have considerable experience with the world's best CFD tools such as Phoenics, Flair, Flair Datacenter, Phoenics CVD, Windsim, CFD2000 and in-house developed CFD software.

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Special Simulation Scenario – Sim-Scene

A Sim-Scene simulates fluid- and heat-flow in a preselected set of situations, the particular parameters of which are further selected by its user. It does so by transmitting the user's requirements to a powerful but hidden 'simulation engine' and by presenting the latter's responses in a user-understandable form. The 'engine' is PHOENICS software package which is an embodiment of the science of Computational Fluid Dynamics. Nevertheless, Sim-scene users need no in-depth knowledge of these. Indeed, PHOENICS – Direct is a low-cost, simplified user interface for PHOENICS CFD software package. PHOENICS-Direct, embodied within the application- specific Sim-Scene, leads the user directly to just the required capabilities. PHOENICS-DIRECT can be adjusted to your specific problem.

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We offer a wide range of CFD software’s: PHOENICS, PHOENICS CVD, FLAIR, FLAIR DATACENTER and more. PHOENICS is an entire engineering process aiming at solving problems involving flow (of fluids or solids), heat transfer and stress. PHOENICS & FLAIR have the ability to tackle problems involving multi-physics and complex geometries. PHOENICS is fully validated with thousands of cases and produces high-quality results in a single code with little user effort. PHOENICS is an all-inclusive analysis tool kit containing a pre-processor, solver, and visualization package, designed to fit easily within your existing engineering process. PHOENICS has many innovative features (INFORM, COSP (inverse problem), Multi-fluid turbulence, Transfer objects, Special Apps...) included and brought to you in a proven, reliable, cost-effective and easy-to-use software.

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About Us

We provide CFD analysis software, support, training and consulting to a broad range of industrial and engineering companies. We try to combine our experience in understanding complex CFD applications and our expertise in numerical methods in order to develop innovative and cost effective solutions to our clients. We provide consultancy work in several fields of CFD (fire in tunnels, multiphase flows, atmospheric dispersion, condensation/evaporation, critical fluids, numerical modeling of crystal growth (gas & liquids), HVAC...) as well as specialized CFD codes such as PHOENICS, FLAIR and customized codes. We are distributors of CHAM products in the US since 2012 and in France since 1996. Our highly trained professionals in computational fluid dynamics as well as a wide network of partners outstand our services and products in order to help you solve specific issues, minimize your efforts while maximizing your efficiency and thus achieving excellence.

Dr Jalil Ouazzani


________________________________________________________________________________________ Phoenics at 40 Autumn 2021
Winter 2020/21 Newsletter Winter_20_21
In the Autumn 2020 newsletter: COVID-19 simulation Autumn 2020
  • New Features of Phoenics 2019

New Vegetation Canopy Model

New: "Mathematical Modeling of Wildland Fire Initiation and Spread", V. Agranat & al., In Environmental Modelling and Software 125 (2020) 104640

About CHAM

CHAM (Concentration Heat and Momentum Limited), is a world-leading consultancy and software house specializing in computer simulation of fluid-flow and heat-transfer processes; it was founded in 1974 by Professor Brian Spalding FRS FREng. CHAM's HQ is in Wimbledon, London, England, with a subsidiary in Japan and agencies worldwide. CHAM spearheaded applying CFD to problems in engineering equipment and the environment. Use of  PHOENICS (CHAM's innovative general-purpose CFD software), sharpens the competitive edge of companies and industries worldwide. CHAM has a team of experienced professional engineers, led by its founder and has developed special-purpose industry–specific graphical environments for several important market sectors.


FLAIR-EFS is a reduced-cost subset of FLAIR for users concerned only with external environmental conditions surrounding buildings and other structures. Object types concerned with internal flows (ie jet fans, diffusers, spray heads) or fire modelling have been removed.

The normal mesh generator is replaced by a system based on size of building(s) being modelled, which are always placed centrally in domain. Domain size is based on multiples of maximum building height.

Users set a minimum cell size. FLAIREFS meshing dialog is shown below:


FLAIR-EFS can show Pedestrian Comfort information including:

  • Wind Amplification Factors.
  • Probability of the wind speed to exceed a set threshold value.
  • NEN8100 Dutch standard for Wind Comfort and Wind Danger in the Built Environment.

Given a table of wind direction and wind speed probabilities for each direction, it is possible to create an average wind speed by running for each wind direction in the table, and then summing absolute velocities multiplied by sector probabilities. The PHISUM utility can be used to sum output files from individual runs.

Our CFD software offer unrivaled benefits to many industries and applications, including:

For the topics below search can be made on PHOENICS PUBLICATIONS LIST

  • Aerospace
  • Automotive
  • Building services⁄HVAC⁄AVA
  • Chemical
  • Combustors & furnaces
  • Electronics cooling
  • Environment
  • Fire⁄Smoke Hazard⁄Risk Analysis
  • Heat exchangers and reactors
  • Marine & offshore⁄petroleum
  • Medical⁄Health
  • Metallurgical
  • Nuclear and power generation
  • Process
  • Turbo-machinery
  • Wind⁄Water⁄Solar energy