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Engineering Simulation Consulting
for Fluid Flow & Thermal (CFD) Applications

Let our CFD consultants help solve your engineering challenges by simulating your designs.

  • Drag Reduction
  • HVAC, Data Rooms, Pressure Drop Calculations
  • Fan, Turbo, and Pump Performance
  • Chemical Reaction with Pollutant Prediction
  • Process Equipment
    • Reacting Vessels
    • Fluidized Beds
    • Bio Reactor
    • Mixing Tanks
    • Pharmaceutical Manufacturing
  • Multiphase Erosion, Corrosion Performance
  • Heat Exchangers
  • Electronics Cooling
  • Medical Devices
  • Expert Witness and Legal Technical Consultation

Learn more about our computational fluid dynamics (CFD) consulting services.

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multiphase mixer


A sample of the types of problems we can solve along with some recent case studies are detailed below.

What is a CFD model and how is it used?

Computational Fluid Dynamics (CFD) models are built on the ability to calculate the flow with the variation in velocity and pressure throughout the fluid volume.

CFD models have been extended over time to include more complex physics like combustion, multiphase, detailed turbulence, aeroacoustics, and coupling with other physics solvers. However, these original, highly validated CFD models are still used today when the more complex models are not needed, and they can answer a significant number of fluid problems.

Contact us to discuss your project: (800) 566-9190, or use our contact form.

CFD consulting services
Flow streamlines through a solenoid valve.
CFD simulation consulting
Supersonic flow analysis over a wing.
CFD consulting services
Non-Newtonian fluid.
computational fluid dynamics
Flow analysis through porous medium.
Recent CFD CONSULTING Projects:
  • Gas Turbine Exhaust Duct - Predicted the change in turbulent pressure drop in a complex large-scale duct system preceding the gas turbines in a gas-fired power station due to the retrofitting of additional structural members. (Power Generation)
  • Airplane Wing - Calculated the supersonic turbulent lift and drag coefficients of various wing profiles at various angle of attacks and altitudes. Compressibility and high speed energy effects were included as well as the accurate prediction of the turbulent shear forces and separation points. (Aerospace)
  • Car Body Kit - Analyzed the aerodynamic drag forces and their corresponding effect of geometry variations to the aerodynamic design of add-on car body kits for a current on-road vehicle. (Automotive)
  • Volatile Gas Dispersion in a Processing Plant - Simulated the transient dispersion due to an accidental release and flashing of a volatile gas in a chemical processing plant. The simulation of the gas dispersion was used to evaluate different HVAC designs. (Building Design)
  • Water Treatment Plant - Optimized the time that contaminants were in contact with disinfectant by calculating the turbulent mixing for several different feed streams to different configurations to different baffle and flow configurations. (Water & Waste)

Related ANSYS CFD Software capabilities include:
  • Steady state and transient simulations
  • Laminar, transitional, and fully turbulent with scale resolving, time averaged, and hybrid turbulence models
  • Complex accurate material models that can include Newtonian and Non-Newtonian viscosity, real gas compressibility, and multiphase effects
  • Optimized High Performance Computing (HPC) capabilities including Platform MPI, Intel MPI, and MSPI technologies
  • Mesh generation using ANSYS ICEM, ANSYS Turbogrid, ANSYS Meshing, and Fluent Meshing

Thermal Analysis (Heat Transfer)

CFD models can calculate the heat transfer of conduction, convection, and radiation through solid and fluid bodies. CFD models are often used to calculate the heat transfer coefficients for all types of flows, including natural, forced, and mixed convection.

More complicated heat transfer effects like viscous heating, compressibility, real material models, and phase change including flashing, evaporation, cavitation, and boiling can be included.

Contact us to discuss your project: (800) 566-9190, or use our contact form.

Temperature Distribution
Temperature distribution with varying thermal conductivity of the board traces.
Temperature Streams
Mixing of two different temperature streams in a static mixer.
Temperature Variation
Temperature variation across both fluid and solid bodies of a check valve.
Radiative Heat Transfer
Radiative heat transfer in an enclosed volume.
Recent CFD CONSULTING Projects:
  • Tablet and Laptop - The thermal management for a mixed convection-cooled Intel i7 Laptop and a natural convection-cooled ARM tablet were calculated. The temperatures were matched to experimental data. The matching required accurate prediction of the convection, conduction, and radiation heat paths. (Electronics)
  • Steam Turbine Building - The natural and forced convection heat transfer were modeled for an HVAC system for a large industrial building that contained numerous pieces of complex industrial equipment and heat sources. The model was then used to evaluate the HVAC design at a number of different load conditions and potential layout variations. (Building Design)
  • Direct Contact Steam Heating Tank - The heating time and thermal mixing of a transient batch direct contact heating process for a nuclear sludge tank were modeled. The model required capturing numerous complex physics, including free surface, multiphase, phase change, Bingham plastic mixing model material models, and long transient duration. (Industrial Products)
  • Electronic Enclosures - The conductive, radiative, and mixed convective heat transfer were modeled for a number of commercial chips with three different enclosure designs for a large semiconducting company. (Electronics)
  • MEMS Device - The transient thermal performance of a small MEMS device with a natural convection cooling system was modeled under a number of different thermal loading cases. (Electronics)

Related ANSYS CFD Software capabilities include:
  • Full energy equation, including high-Mach number compressibility effects
  • Conduction and convection through solids and fluids, including force and natural (buoyancy-driven) convection
  • Radiation models including P1, surface-to-surface, and ray tracing
  • Phase change and boiling models
  • Temperature-dependent material properties

Rotating Machinery Analysis

The rotating frame of reference formulation of the Navier-Stokes equations is used to include the motion of rotating components like rotors, impellers, and mixers. This method does not require a remesh to capture the motion coupling to the standard stationary formulation of the Navier-Stokes equations. This process allows ANSYS CFD software to accurately capture the fluid motion, and therefore performance, of rotating machinery like pumps, mixing tanks, fans, compressors, and turbines.

ANSYS has a full suite of advanced technologies that allow for timely and accurate modeling of rotating machinery. These technologies include advanced turbulent models, like the mentor laminar-transitional SST turbulent model, that have a long history of validated use in modeling rotating machinery. The real gas properties of the fluid can be included along with multiphase effects like cavitation to accurately calculate on and off design performance.

Contact us to discuss your project: (800) 566-9190, or use our contact form.

CFD air quality consulting
Velocity profile in a centrifugal pump.
Turbine Pressure Changes
Velocity and pressure changes in a turbine.
CFD consultant
Pressure rise generated in a centrifugal compressor.
CFD programming consulting
Wall shear on the walls of a blood pump.
Recent CFD CONSULTING Projects:
  • Electrical Submersible Pump (ESP) - Modeled the turbulent, single, and multiphase flow conditions in several electric submersible pumps (ESP) using the advanced multiple frame of reference (MFR) models in ANSYS CFX to improve the pump's performance. (Oil & Gas)
  • Industrial Fan - Evaluated the effectiveness of different geometric fan design changes for a turbulent compressible application. (Industrial Products)
  • Pharmaceutical Mixing Tank - Calculated the species transportation and mixing time for a transient turbulent impeller-stirred bioreactor tank with different injection scenarios. (Biomedical)
  • Underwater Turbine - Predicted the underwater turbine performance and the impact of the transient vortex shedding on the structural support. (Power Generation)
  • Blood pump modeling - Predicted the hydraulic performance, flow residence time, and relative hemolysis levels for a centrifugal blood pump over intended range of use; incorporated Cross Non-Newtonian blood viscosity and Eulerian-based hemolysis generation models. (Biomedical)

Related ANSYS CFD Software capabilities include:
  • Fully turbulent, transitional and laminar flow models for all fluid turbulent conditions
  • Complex material models including real gas models and multiphase models
  • Frozen rotor, mixing (stage), transient, time transformation, and Fourier transformation interfaces between rotating and stationary domains
  • Rotating machinery meshing (TurboGrid) and post processing

Reacting Flow Analysis, Chemistry Analysis, and Combustion Analysis

ANSYS CFD capabilities include calculating the advective and diffusive transportation of different chemical species and the resulting mixing of species. ANSYS can also model detailed complete chemical reactions with its Reaction Design CHEMKIN chemistry solver.

Coupling the detailed flow field and chemistry, complex real world reactions/combustion problems can be solved, even up to thousands of chemical reactions, allowing the prediction of even minor chemical species in complex real geometries.

Contact us to discuss your project: (800) 566-9190, or use our contact form.

Inline Acid Mixing
Inline acid mixing.
Gas Combustion Chamber
Combustion in natural gas combustion chamber.
Coal Particle Combustion
Coal particle combustion.
Chemical vapor deposition on a stationary wafer.
Recent CFD CONSULTING Projects:
  • Combustion Chamber - Modeled the combustion process in a mixing rate limited transient multiphase reaction chamber to calculate the heat production of the chamber. (Industrial Products)
  • Chemical Vapor Deposition (CVD) - Modeled the detailed chemistry of the CVD process which included the detailed surface chemistry. The resulting deposition rate and uniformity was predicted for a given chemical vapor deposition chamber. (Electronics)
  • Rotary Fiberizer - Predicted the temperature and velocity profiles at the exit of the combustion chamber for a rotary fiberizer process. The model used the fast chemistry model and solver to include all the required chemical mechanisms. (Industrial Products)
  • Multistage Reactor - Modeled the multispecies thermal flow of supercritical water and cold hydrocarbons through a series of mixing tees, reactors, and heat exchangers. (Oil & Gas)
  • Rocket Engine Combustion Chamber - Performed thrust and flow analysis of a space shuttle rocket engine combustion chamber with steering from eccentric rod application. (Aerospace)

Related ANSYS CFD Software capabilities include:
  • Advanced turbulence models, including scale resolving models, to accurately capture mixing rates
  • Temperature, species, pressure, and multiphase dependent material properties
  • Volumetric and surface chemical reactions
  • Finite rate chemistry solvers with acceleration technology
  • Numerous combustion models

Motion Analysis and Multiphysics Analysis

ANSYS tools are widely recognized as the industry-leading multiphysics toolset. They allow for accurate and robust coupling between the different physics modeling tools. These tools allow SimuTech Group to model a wide variety of multiphysics and multidisciplinary models.

These multiphysics interactions can be as simple as coupling of solid body temperatures for prestressing, to changing fluid volume due to rigid motion of solid bodies, to tightly coupled flexible deformation of the solid bodies reacting to the spatially and time-varying fluid pressure and shear forces.

Contact us to discuss your project: (800) 566-9190, or use our contact form.

Positive Displacement Pump
Positive Displacement Pump (GeRotor Pump).
FSI Thermal
Thermal mapping to form a CFD solution to FEA stress model.
computational fluid dynamics consulting services
Remeshing and prediction of a body falling with fluid forces acting on it.
Vortex Shedding
Transient forces acting on a structure due to vortex shedding.
Recent CFD CONSULTING Projects:
  • High-Pressure Pump - Investigated the fluid failure mechanism and redesign of a high-pressure reciprocating pump used to inject water into the reservoir in the fracking process. The model captured the transient multiphase flow as the pump piston and valve rigidly moved. (Oil & Gas)
  • Ball Gate Valve - Performed a root cause analysis of the Ball gate valve, which was having vibration lifecycle problems. The analysis of the structural motion reacting to the turbulent fluid identified the problem, and with a small change to the design, fixed the lifecycle problems. (Automotive)
  • Industrial Duct - Analyzed the turbulent vortex shedding and the potential fluid-structural interaction caused by the fluid vortices that could be shed of the internal duct structure. (Industrial Products)
  • Reciprocating Engine - Calculated the spatial and time-varying solid body temperature using conjugate heat transfer model in a transient, compressible fluid system. The fluid model was used with a corresponding structural model to identify areas of high stress due to thermal loading. (Power Generation)
  • Reciprocating Compressor - Modeled the transient effects within a reciprocating compressor with compressible methane gas utilizing ANSYS Fluent’s moving mesh capabilities. (Oil & Gas)

Related ANSYS CFD Software capabilities include:
  • Rigid body motion
  • Contact detection and condition-based events
  • Mesh moving, mesh morphing, remeshing, and mesh adaption technologies
  • Thermal, acoustic, and structural coupling, both tightly coupled and decoupled methodologies

Free Surface Analysis

Using the volume of fluid (VOF) model, ANSYS CFD is capable of predicting the location of the free surface interface location and its effects between two or more phases. Interphase transfer of mass (phase change), species, energy, and momentum, including surface tension, can also be included, allowing the modeling of numerous multiphase flow conditions.

Contact us to discuss your project: (800) 566-9190, or use our contact form.

Atomization of water due to primary and secondary breakup of the stream and the resulting droplets.
CFD Consulting
Prediction of the drag, trim, and heal of a jet boat moving forward on a free surface.
Recent CFD CONSULTING Projects:
  • Biomedical Device - Analyzed the atomization of a liquid stream into droplets before automated sorting, which captured the laminar surface tension-driven breakup at the free surface. (Biomedical)
  • Large Ocean Vessel - Calculated the transient pressure and shear loading on a large ocean-going vessel while moving through different sea states. (Marine)
  • Spin-coating - Calculated the film distribution and thickness during the spin coating process at various rotational speeds and therefore high g-force loaded films for various viscous liquids. (Electronics)
  • Mixing Tank - Calculated the height deformation of a free surface with its vortex calculation from added momentum of a high-speed impeller in a biomedical mixing tank. (Biomedical)
  • Water Storage Tanks - Predicted diurnal flow patterns to ensure effective water replacement in a waste water storage tank. (Water & Waste)

Related ANSYS CFD software capabilities include:
  • Volume of Fluid (VOF) multiphase model
  • Volume of Fluid – Level Set coupled surface tension model
  • Open-channel flow wave and numerical beach boundary condition options
  • Turbulent damping at free surface interface

Multiphase Flow Analysis / Particle Tracking Analysis

The flow of multiphase conditions including liquid-gas, liquid-liquid, granular, separated, and dispersed in complex geometries can be calculated by including additional multiphase models. Even more complicated physics can be included, such as phase change, chemistry/reactions, dispersed phase breakup, and flow regime variation.

Contact us to discuss your project: (800) 566-9190, or use our contact form.

Bubble Motion
Bubble motion in an air sparged impeller-driven mixing tank.
Spray Drying
Spray drying of particles calculating the particle motion and phase change.
Erosion Rate
Article tracking with erosion rate of particle impacting on the wall surface.
Steam Flashing
Prediction of phase change due to steam flashing.
Recent CFD CONSULTING Projects:
  • Spray Quench Tower - Calculated the cooling, corrosion, and erosion effects of water spray using particle tracking and phase change models to capture the complex multiphase interactions on the internal surfaces of the quench tower. (Industrial Products)
  • Oil and Gas Pipeline (Flow Assurance) - Calculated the resulting turbulent fluid motion resulting from the mixing of black oil/natural gas and water in unusual operating conditions for undersea pipelines. (Oil & Gas)
  • Flow Control Devices (FCD) and SAGD Liners - Predicted pressure drops and erosion in "Steam Assisted Gravity Drainage" bitumen recovery systems and production. This required modeling the multiphase bitumen-water emulsion flow through various flow control devices at downhole conditions, including the flashing effect for the SAGD extraction process. (Oil & Gas)
  • Diesel Spray Injector - Modeled the spray injector to predict the cavitation location and rate. This was used to look at the implications on the resulting spray during the cyclic transient injection of a diesel injector. (Automotive)
  • Choke Valve - Calculated the multiphase flow rate across a choke valve at various pressures, corresponding gas oil ratios (GOR), and valve positions. (Oil & Gas)

Related ANSYS CFD Software capabilities include:
  • Particle tracking with numerous advanced physics, including breakup, collision, contact, coalescence, phase change, and combustion
  • Dense multiphase liquid-liquid, liquid-gas, and granular flow
  • Porous media flow for both single and multiphase flow conditions
  • Multiphase phase change models, including cavitation, boiling, wall boiling, condensation, species transfer, and flashing


The evaluation of design changes is a strength of simulation in general. Once an initial model is solved, resolving with new conditions and/or geometry can be as simple as updating the model and rerunning it. SimuTech Group has a number of optimization tools, including non-parametric optimization tools that intelligently guide the optimization process.

Contact us to discuss your project: (800) 566-9190, or use our contact form.

CFD consulting
The reduction of variation in flow distribution in a manifold.
Recent CFD CONSULTING Projects:
  • After-Treatment Device - Modeled direct shape optimization of after-treatment devices for an automobile. This method used non-parametric optimization to produce a unique design with performance superior to the original design. (Automotive)
  • Industrial Manifold - Optimized the fluid flow distribution across manifold design used in the polymer extrusion industry. The simulation required modeling a high-viscosity Non-Newtonian fluid and then evaluating of the effect on the distribution to changes in the manifold shape. (Industrial Products)
  • Membrane Product - Simulated the flow patterns that are used to stabilize membranes used in an industrial process, with the goal of optimizing an industrial sensor's membrane measurement capability. (Industrial Products)
  • Cleaning Tank for Solar Tubes - Calculated and then optimized the fluid shear forces acting as a cleaning process on a cleaning tank which was generated by transient turbulent wave. Once the initial model was created, the process was optimized to reduce the residence time the tubes were in the tank. (Power Generation)
  • Static Mixer - The turbulent mixing characteristics inside an oil storage-tank and resulting tank fluid velocities were predicted and then used to optimize the mixing process, reducing the mixing time of the mixer. (Oil & Gas)

Related ANSYS CFD Software capabilities include:
  • The use of parametric and/or non-parametric optimization to accurately increase a given design's performance
  • Sensitivity analysis
  • Adjoint solver/ non-parametric optimization
  • Response surface, direct, and hybrid parametric optimization
  • Robust design optimization

Aeroacoustics Analysis

The noise generated from flowing fluids can be calculated with ANSYS software. This allows for the prediction and reduction of the noise associated with turbulence.

Contact us to discuss your project: (800) 566-9190, or use our contact form.

Sound Pressure Waves
Sound pressure waves produced in a supersonic jet exhaust.
Automobile Sound Generation
Sound generation sources around an automobile body.

Related ANSYS CFD Software capabilities include:
  • Direct acoustic pressure wave calculation
  • Acoustic analogy methods (based on Lighthill’s analogy)
  • Broadband noise models
  • Coupling with ANSYS FEA acoustic models