CFD Companies 

A Computational Fluid Dynamics (CFD) Company

BroadTech Engineering is one of the Leading CFD Companies (Computational Fluid Dynamics) in Singapore.
Our goal is to help industrial organizations and Research partners to exploit the practical usefulness of CFD consulting and CFD simulation software analysis to solve real-world engineering challenges and to have a clearer insight into the dynamic fluid flow, Thermal heat transfer, and related flow processes that occur in industrial and environmental flow processes.

With this practical application of CFD simulation analysis via our CFD consulting services, it enables our clients and industry partners to enjoy advantages such as

1. More evolved engineering design concepts
2. Improved Engineering design solutions of prototypes and processes
3. Enhanced performance of engineering process and prototypes.

Featured Case Studies

Turbulence Study on Big Canopy

Turbulence Study on Building Canopy

The observatory telescope uses Adaptive Optics. This system feeds the post-processing of optical data with a factor to compensate for the effect that the turbulence over the dome has on the resolution of the image.
A CFD aerodynamic study was performed on the canopy design to:
• Dimension the forces that the engines of the gates needed to generate for all atmospheric conditions.
• Evaluate the level of turbulent energy created by the gates on the line of sight of the telescope mirror, post process CFD results and check if levels are within Adaptive Optics operational range.

Analysis of Oxygenation Tank Stirring

Analysis of Oxygenation Tank Stirring

The oxygenation process of the purifying plant needed to increase its absorption of organic gas in the mud pre-treatment tank.
Gas is supplied through a venturi device installed under a propeller in the tank that stirs the mud in suspension.
Propeller design was optimized to better use the available mechanical power and increase venturi effect. Absorption cone and customized stators were designed and installed.

About Us

BroadTech Engineering was founded by a group of engineers in partnership with Dr. Ng Chuan Lim Robert, a prominent Professional Engineer, and internationally recognized CFD expert
He has under him accumulated over 40 years of CFD related experience in the area of academic research as well as industrial consultancy. In addition, he has published over 200 research publications on the study of CFD to date.

He has over 20 years of research experience in CFD code development and has successfully completed over 200 industrial CFD consulting projects (with wide range of applications in the area of Maritime engineering, Aerospace engineering, Automotive design validation, Thermal cooling of electronics, HVAC, Fire & safety assessment, and Environmental airflow engineering)
His research interest includes numerical modeling of turbulence simulation and development of numerical discretization techniques for partial differential equations.

Overview

About Us

BroadTech Engineering is a Leading Engineering Simulation and Numerical Modelling Consultancy in Singapore.
We Help Our Clients Gain Valuable Insights to Optimize and Improve Product Performance, Reliability, and Efficiency.

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CFD Companies

1. Powerful CFD Simulation Software Tools

2. CFD Consultants with Extensive Research & Professional Experience

2. CFD Consultants with Extensive Research & Professional Experience

3. CFD projects Completed in a Timely and Cost-effective Manner

3. CFD projects Completed in a Timely and Cost-effective Manner

4. Proven Track Record

4. Proven Track Record

5. Affordable

5. Affordable

6. Full Knowledge Transfer

6. Full Knowledge Transfer

Comprehensive Range of Professional Finite Element Analysis (FEA) Consulting Services

1. Motion and Multiphysics Simulation

1. Motion and Multiphysics Simulation

ANSYS software tools are widely recognized in the CFD simulation arena as the industry-leading multiphysics simulation/numerical modeling software tool.
They enable for precise and robust linkage between the various physics CFD modeling tools.
These valuable tools allow BroadTech Engineering to model a wide variety of multiphysics and multidisciplinary simulation models in the course of performing our CFD services.

These various Examples of Multiphysics interactions can include

1. Tightly coupled flexible deformation of the solid bodies reacting to the spatial-dependent and time-varying fluid pressure forces and shear loading forces.
2. Varying fluid volume caused by rigid motion of solid bodies
3. Simple Coupling of solid body thermal temperatures for purpose of material pre-stressing

 

Related Ansys CFD software features & capabilities used:

● 3D Meshing Solver technologies, with features such as Mesh moving, Mesh geometry morphing, Re-meshing
● Rigid body motion simulation
● Thermal, Acoustic, and Structural coupling. Based upon both tightly coupled and decoupled numerical modeling Methodologies
● Detection of contact forces between bodies and condition-based events

Here you can create the content that will be used within the module.

2. Foundational CFD

2. Foundational CFD

Computational Fluid Dynamics (CFD) numerical models are built based on the capability to mathematically calculate the fluid flow using the input characteristics, such as variability in particle vector velocity and net pressure values of the fluid volume.
CFD analysis models have been extended over time to include more complex multi-dynamic physics like combustion processes, detailed flow turbulence (multiphase, Non-newtonian, Hypersonic), aeroacoustic, and coupling with a whole array of other physics solvers.
These original, highly validated CFD simulation models are still widely highly relevant today to answer a huge number of fluid problems when the more complex CFD models are not needed.

Related Ansys CFD software features & capabilities used:

● 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
● Laminar, transitional, and fully turbulent with scale resolving, time-averaged, and hybrid turbulence models
● Steady state and complex transient reacting flow simulations
● Complex accurate material models that can take into account Newtonian & Non-Newtonian viscosity, real gas compressibility, Single-phase & Multiphase effects and Subsonic & Hypersonic flow.
3. Optimization Simulation

3. Optimization Simulation

The verification of design changes is an advantage of CFD numerical simulation in general.
Once an initial numerical model is solved, subsequent resolving with new input parameters or geometry conditions simply involves updating the CFD simulation model and rerunning the CFD simulation process.
BroadTech Engineering has a whole suite of world-class simulation optimization tools (such as Non-parametric optimization tools) that can intelligently guide the optimization process.

Related Ansys CFD software features & capabilities used:

The use of parametric or non-parametric optimization to reliably increase the performance of an existing design

● Adjoint simulation non-parametric optimization
● Numerical Modelling & Evaluation of Design Sensitivity
● Response surface, direct, and hybrid parametric optimization
● Optimization of existing design to enhance Durability
4. Thermal (Heat Transfer) Simulation

4. Thermal (Heat Transfer) Simulation

CFD flow analysis models can be used to calculate the heat transmission through Solid and Fluid bodies through Conduction, Convection, and Radiation.
It is from this CFD fluid dynamic simulation models that the heat transfer coefficients for virtually any types of flow behaviors, such as Natural, Forced, and mixed convection flows can be calculated. More Advanced heat transfer effects like Viscous heating, compressibility, real material models, and Material phase transition (such as Evaporation, Flashing, Cavitation, and Boiling) can be also included in the CFD Thermal analysis

Related Ansys CFD analysis software features & capabilities used includes:

● Temperature-dependent material properties
● Full energy equation, including high-Mach number compressibility effects
● Modelling of Phase transition and material boiling models
● Thermal Conduction and Convection process through solids and fluid bodies (this includes Force and natural (buoyancy-driven) convection) – Radiation models including P1, surface-to-surface, and ray tracing
5. Rotating Machinery Simulation

5. Rotating Machinery Simulation

The rotating frame of reference formulation of the Navier-Stokes equations is used to include the rotating motion of components such as propeller rotors, impellers, and mechanical mixers.
This simulation methodology does not require a remeshing to accurately capture the motion coupling to the standard stationary formulation of the Navier-Stokes equations.
This fluid dynamic analysis process allows the powerful ANSYS CFD simulation tool to model the dynamic fluid motion precisely in a timely manner.
This allows for an accurate performance evaluation, of rotating machinery such as Mixing tanks, Pumps, fans, compressors, and turbines.

These analysis technologies include complex turbulent models, such as the mentor laminar-transitional SST turbulent flow numerical model, which have a long track record of proven usage in modeling rotating machinery.
The real gas properties of the fluid can be included along with multiphase physical effects such as Cavitation to accurately simulate on and off design performance.

Related Ansys CFD software features & capabilities used:

● Frozen rotor, mixing (stage), transient, time transformation, and Fourier transformation interfaces between rotating and stationary domains
● Fully turbulent, transitional and laminar flow models for all fluid turbulent conditions
● Meshing (TurboGrid) of Rotating machinery and Post simulation processing
● Complex & Dynamic material simulation models such as Real gas models and Multiphase flow models
6. Free Surface Simulation

6. Free Surface Simulation

Using the volume of fluid (VOF) simulation model, we have the capability to use ANSYS CFD simulation to predict the location of the free surface interface position and its interaction effects between two or multiple material phases.

To enables the concurrent modeling of numerous multiphase flow conditions, additional simulation input parameters such as Inter-phase transference of mass (phase change), Species, Energy, Momentum, and Surface tension, can also be added into the CFD simulation.

Related Ansys CFD software features & capabilities used:

● Turbulent flow damping at free surface interface
● Volume of Fluid (VOF) multiphase numerical modeling of Level Set coupled surface tension
● Open-channel flow wave and options for simulating numerical beach boundary condition
7. Reacting Flow, Chemistry, and Combustion Simulation

7. Reacting Flow, Chemistry, and Combustion Simulation

ANSYS CFD capabilities include calculating the advective and diffusive transportation of different chemical species and the resultant mixing of species.
We can also utilize ANSYS CFD software tools to simulate in minute detail complete chemical reactions with our Chemistry Reaction Design solver.
Coupling the detailed flow field and chemistry, even complicated real-world chemical combustion problems can be investigated.
We are even able to accurately model up to thousands of chemical reactions, to make it possible to predict of even minor chemical compounds in advanced real-world geometries.

Related Ansys CFD software features & capabilities used:

● Complex turbulent flow modeling, including scale resolving models, to accurately model mixing rate of mixing
● Simulation of Material properties that is dependent on Temperature, species, pressure, and multiphase flow conditions
● Volumetric and surface-based Chemistry reactions
● Finite rate chemical reaction solvers with acceleration computation technology
● Concurrent combustion numerical models
8. Particle Tracking Simulation

8. Particle Tracking Simulation

The addition of Multiphase flow numerical simulation models allows the calculation of various complex Multiphase flow geometry behaviors including

● Granular Flow
● Liquid-gas Flow
● Liquid-liquid Flow
● Dispersed Flow
● Separated Flow

Even more complex physics can be added in the Simulation, such as inter Phase change, reactions, Breaking up of the dispersed phase, and variation in Flow regime.

Related Ansys CFD software features & capabilities used:

● Single and Multiphase flow conditions characterized by Porous media flow
● Tracking of Particle and numerous advanced physics. This includes physics such as Breakup, Collision, Contact, Coalescence, Phase change, and Combustion reactions
● Multiphase phase transition simulation models, such as Cavitation, Boiling, Condensation, Wall boiling, Flashing, and  Species transfer.
● Multiphase flow conditions with High-density liquid-liquid, liquid-gas, and granular flow
9. Aeroacoustics

9. Aeroacoustics

The noise created from turbulent fluid flow can be simulated and modeled with ANSYS CFD software.
This enables the prediction and reduction of the noise arising from the turbulence.

Case Studies of Project Accomplished

Below is a selection of some CFD consulting projects that we have successfully accomplished for our customers.
Due to the sensitive nature of the consultancy work involved, we strive to not preserve details concerning our client’s identity.
In the case studies section of past CFD consulting projects that we were engaged in, you’ll soon realize our expert work as consultants is universally applied to a broad range of projects.

Fire Safety Assessment

Evaluation of Smoke Suppression Systems

● Simulate and Validate Performance of Smoke Control Engineering System Design in relation to Fire Safety Regulatory Requirements of the building Occupants.
● Base on the Building design, taking into account available exhaust vents & prevailing environmental wind speed, we are able to model Smoke plume generated by a fire outbreak in, to get a precise assessment of the smoke movement into the external environment.

 

Analysis of Complex Airflow Behavior During Fire Outbreak

● We have the capability to accurately Model and Predict complicated dynamic Airflow Behavior, Temperature contour distribution & Smoke Movement (Visibility Level) under different Fire outbreak Scenarios & Operating Conditions.

Base on CFD numerical models, we are able to accurately evaluate and predict stratification of smoke (layering) which is caused due to a loss of smoke buoyancy at the building ceiling.

Building Aerodynamics & Wind Engineering

Analysis of Building Aerodynamics

● Simulation, Analysis, and Optimization of Natural Wind Movement Around High rise Buildings & Effects on Nearby Built Environment
● Modelling and Optimization of Surface pressure contours on buildings & terrain due to External Wind loading forces

 

Design of Natural Building Indoor Ventilation

● Harness Wind Resource as a form of Renewable and Sustainable Energy for Natural Ventilation in Living Areas

This involves the Simulation, Analysis, and Optimization of wind Velocity vectors distribution in the Residential apartment when due to pre-existing Wind conditions available.

Optimization of Industrial Ventilation, Heating & Cooling in HVAC Systems

Mitigation of Heat Stacking Effect in HVAC system

● Mitigation of Heat Stacking Effect due to Recirculation of Hot Exhaust Air Discharged from Air-Conditioning Condenser Units.

Through CFD analysis, we are able to provide you design innovations which can help to Enhance Operational Efficiency & prolong the useful Life of air conditioning equipment

 

● Base on the distribution patterns of Particles trajectories of the exhaust air emitted from air conditioning condenser units, we are able to verify if whether there is an entrapment of hot exhaust air back into condenser units.
A recirculation of exhaust air can result in exponentially higher exhaust air temperature & temperature within air well.

 

Assessment of Air Conditioning Performance

● Investigate dynamic Airflow patterns & Heat Transfer Behavior in Large indoor Spaces for purpose of Evaluating Efficiency of proposed Air Conditioning System Design
● This involves simulating and studying the Temperature distribution contours on specific cross-sectional planes in the building which accounts for various heat sources such as building internal occupant, and environmental heat loads from the sun.

Air Pollution Health Risk Assessment

Indoor Air Pollution Control

● Through accurate CFD simulation, we are able to precisely predict Particles trajectory Distribution of exhaust air discharged from building plume fans located at the building roof area.
● Base on this numerical modeling, we can evaluate whether there is an ingestion of airborne pollutants from upwind Exhausts ducts by building ventilation air intakes, which is indicative of a re-entrainment of airborne contaminant back into building roof area.

 

Downstream Air Pollution Control

Using CFD analysis tools, we are also able to accurately model the Dispersion movement of air pollutant plume discharged from building exhaust ducts.
The distribution movement of the contaminant Particles trajectories is an accurate indicator of contaminant dispersion downstream into neighboring residential Buildings.

Electronics Cooling & Thermal Management

● Thermal Structure Design for efficient Cooling of Advanced Electronic component packages

 

● Optimization of Surface temperature exchange of Die & Lead Frame in Metric Quad Flat Pack (MQFP) due to natural convection cooling in JEDEC enclosure.

Naval Architecture & Marine Engineering

● Minimization of Hull Resistance. This is for Suppression of Detection Signatures in Naval Surface Ships & Submarines

 

● Ensure Free laminar surface flow around submarine indicating wave breaking at bow, formation of near-field bow wave & trailing wake

Offshore & Marine Engineering

● Optimization of Anti-Wave Baffle Design for Skimmer Pre-Deoiler Naval Vessel, to Stabilise Fluid Movement and to Reduce undesirable Mixing of Oil & Water in Vessel for Increased Oil/Water Separation Effectiveness

 

● Transient free boundary surface of water output in Skimmer Pre-Deoiler Naval Vessel, installed on Floating Production Unit, subjected to varying motions & accelerations of open sea wave motion (6DoF)

Features & Benefits of FEA Consulting

An actual physical engineering test can reveal you of an occurrence of a failure in a product or structure, however, this inefficient testing and development process is often Costly, takes up precious product development time and in many cases, does not really reveal the real cause of the failure.
With our FEA consulting services, we can help you to answer to several questions that a real-world test simply can’t.
This includes

1. Identification of Areas with Excess Material to save on unnecessary material and weight.
Having an iterative and intelligent FEA analysis process which helps engineers to push the boundaries to optimize engineering designs that maximize strength and minimize cost
2. Determination of the product structure’s current Margin of safety

1. Powerful ANSYS FEA Simulation Software Tools

Our FEA engineering consultants engineers employ some of the industry’s most advanced analysis tools which are widely recognized as the best-in-class in the engineering simulation industry.
This includes ANSYS finite element analysis FEA software Tools such as

– ANSYS Mechanical
– ANSYS Multiphysics
– ANSYS nCode DesignLife
– ANSYS LS-DYNA

2. FEA Consultants with Extensive Research & Professional Experience

Our team of FEA consulting engineers consultants you will be working with has advanced degrees and deep expertise across a wide range of industries such as Automotive machinery, Biomedical, Aerospace engineering, Building & Construction, chemical equipment, Power Generation, Oil and gas, and Consumer Electronics.

3. FEA projects Completed in a Timely and Cost-effective Manner

Throughout the entire life of the FEA consulting project, our FEA consulting engineers will work closely with you to understand your analysis requirements to ensure that the right finite element analysis approach is adopted.

4. Proven Track Record

For several years, our FEA consulting services have been relied upon to provide answers to some of the most challenging Structural and Thermal Analysis projects.
From basic part component analysis to total end-to-end FEA analysis processes, we are able to deliver reliable insights solutions that help you to solve real-world challenges.

5. Affordable

Our Finite Element Analysis (FEA) consultancy services offer you an engineering analysis solution that is accurate, timely and cost-effective
Our affordable analysis services allow smaller-scale companies to enjoy the benefit of a professional Finite Element Analysis solution without incurring a heavy cost of employing a full-time in-house FEA engineer.

6. Full Knowledge Transfer

Our FEA consulting services does not just end with the results. To ensure that there is a complete knowledge transfer at the end of the analysis, we conduct comprehensive training to ensure there is no doubt on the understanding of the Finite Element results.

Call Us for a Free Consultation

Discover what our FEA consulting services can do for your company today by calling us today at +6581822236 for a no obligation discussion of your needs. If you have any questions or queries, our knowledgeable and friendly technical staff will be happy to answer any of your queries and assist to understand more about your needs and requirements Alternatively, for quote request, simply email us your technical specifications & detailed requirements to info@broadtechengineering.com

Other Featured CFD Case Studies

CFD Simulations and Validation from the ‘Lab Data’ for the performance of the ‘DAMA’ and the ‘Ambiator’

Simulation Objective: the entire project was to design, analyze, experimentation and validation of a fully functional HVAC lab
Methodology: the biggest size of ‘Ambiator’ (an IDEC based air cooler) was taken into consideration. The heat load was calculated and the required size of heating, cooling and humidification apparatus was determined.
Later CAD model was created using Creo-Parametric 2.0, meshing was done partially using ‘Salome’, ‘next-gen’ and later a complete mesh was created using ICEMCFD. CFD analysis was done using OpenFOAM.
From the flow analysis, the mixing of different steam of air was analyzed at the inlet and respective performance of DAMA (a patented heat exchanger) at various inlet conditions (as determined by ISHRAE and ASHRAE) are simulated.
Results and Conclusion: CFD simulation were showing the proper mixing of various streams of air at the inlet. Based on the CFD results the lab was constructed in the new unit of ‘HMX’ in Bangalore.
The CFD results were closely agreeing with the lab results
Specific water consumption, heat and mass balance was balanced within error range of +/- 5%

Centrifugal Blower (radial blades) design, Customization, manufacturing, Balancing, and Testing 

 Simulation Objective: The static pressure of Axial fans was not enough to overcome the entire resistance, hence two-fans were required. The objective was to replace the entire fans by a single centrifugal fan without increasing the cost.
Methodology: Firstly the working, design, and handling of the centrifugal fans were studied from the ‘centrifugal fans handbook’. After a literature review, it is learned that radial blades are self-cleaning blades and can handle dirty (dusty) air as well. Hence, no maintenance is required.
As per the theoretical calculations, centrifugal fans were designed for 4″ water gauge pressure. Creo-Parametric 3.0 was used for CAD, ICEMCFD was used for meshing, OpenFOAM and Ansys-Fluent was used for analysis
Later, manufacturing was done using Laser-Cutting and Sheet metal operations. Traditional methods were using for balancing the rotor
Outcome and Conclusion:
1. Flow losses were analyzed at various bends and heat-exchangers.
2. it was learned that, if ‘static pressure’ is converted to ‘velocity pressure’ there are no / negligible losses, while for vice-versa, nearly 50% of the energy is lost in turbulence.
3. overall machine design is improved, while, using ‘Laser Cutting’ and ‘sheet metal operations’ the overall cost maintained within 10% of the original cost (with axial fans) without compromising the quality
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