Fluid Dynamics Simulation

Fluid Dynamics simulation is an advanced Computational engineering simulation method which is based on the study of fluid mechanics formulation. It enables CFD consulting engineers and CFD companies in Singapore to accurately model, simulate, and analysis of the fluid flow (either Liquid or Gas) behaviors created by passing through or around specific object designs. Using highly efficient computer-based Fluid Dynamics Engineering CFD Simulation software tool, it has made it possible for our CFD services to quickly Model, Simulate and efficiently Analysis fluid flow and heat transfer performance within a mechanical, electronic, or electrical systems, without the need for any complex analysis and calculation.

Featured Fluid Dynamics Simulation Case Studies

Acoustic analysis

CFD Analysis of Acoustic Energy

Submarine air tanks are vented through-pressure ensure exhaust system composed of a valve and several ducts. The exhaust process generates high levels of sonic energy that may damage other components or present a risk for human health.
A CFD study was carried out to foresee the levels of acoustic energy generated by different designs and configurations. The information obtained was used to preselect the best designs, which were eventually tested on a test bench to confirm the conclusions met by the CAE analysis. The sonic level was eventually reduced from 400 to 100 dB.

Gas leakage explosion investigation

Investigation of Gas Leakage Explosion

Authorities suspected that a gas leakage was the cause of an explosion in a building. A CFD model was built to analyze different possible scenarios and the behavior of the gas under different leakage hypothesis.
The model included the whole building, elevator shaft, ventilation ducts, underground garage and part of the street underground and public sewers. Various dispersion times and propane concentrations were analyzed.

Overview 

Below is a workflow overview of our CFD consulting services at BroadTech Engineering.

1. CFD Modelling

Using 3D CAD modeling, a scale simulation model of the CFD modeling system or prototype design to be studied is created.

2. CFD Simulation

1. By applying the theory of fluid flow physics (eg. Navier-Stokes equations) and chemistry to this virtual prototype, the Computational Fluid Dynamics (CFD) simulation software will generate a prediction of the fluid dynamics and related physical phenomena via fluid dynamic analysis.
2. Through the CFD analysis of the results generated from the incorporation of the design and its details into the simulation model, one is able to determine the resultant 3D flow behavior of mass and energy, This includes scenarios such as
1. 3D Flow of Fluids (either Gases or Liquids)- this includes Unsteady and compressible flows
2. Heat temperature transfer during heat dissipation
3. Mass transfer during diffusion mixing between 2 fluid bodies
4. Moving bodies
5. multiphase physics
5. Chemical reaction
6. Fluid-structure interaction
7. Acoustics

 

3. CFD Analysis

Computational Fluid Dynamics (CFD) analysis gives engineers a means to gain deeper insights into the prototype design performance behavior.
Base on the CFD flow analysis results obtained from the CFD fluid dynamic simulation, it makes it possible to

1. Test & Validate New Design

CFD simulation enables the subjecting of the prototype design to various usage scenarios in a virtual simulation environment without the need for any actual prototype testing, physical test, or time-consuming cyclic endurance testing.

2. Identify Flow Concentration Hotspots

Analyze Airflow dynamics & thermal distribution, to identify and investigate any pressure hotspot areas via the use of CFD thermal analysis.
eg. Helps ESD consultants and Green Building consultants to optimize Building aerodynamics for natural wind ventilation.

3. Refine & Optimize Design without Physical Prototyping

Optimize prototype design to strike a balance between various opposing related parameters, such as
eg. equipment power requirements and Equipment safety
Through the testing and validation of various design iteration in a digital simulation environment, it allows engineers to refine their design to get their detailed designs right the 1st time even before the first actual prototype is being fabricated & tested physically.

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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Fluid Dynamics Simulation

1. Early Engineering Insights During Design Phase

2. Cost Savings in Engineering Development

2. Cost Savings in Engineering Development

3. Practical Industrial Benefits

3. Practical Industrial Benefits

Features & Benefits of Fluid Dynamics Simulation

1. Early Engineering Insights During Design Phase

Fluid Dynamics Simulation offers the benefit of removing the complexity out of fluid flow analysis by allowing you to easily calculate fluid forces and understand the impact of a design decision on product performance in a liquid or gas medium.

Engineering Simulation as A Replacement for Physical Testing

When the power of Fluid Dynamics is incorporated into a regular component of your engineering design workflow, it effectively eliminates the need for the actual fabrication and testing of physical prototypes.
This helps to save time and money and accelerate the rate of innovation.

2. Cost Savings in Engineering Development

As the engineering Simulation is incorporated early in the engineering design process, the computational fluid analysis makes it possible for engineers to identify and quickly rectify any potential design problems early in the development process.
This helps to prevent the design issues from discovered too late in the engineering development process, such as during pre-production, where any design change will involve serious project schedule delays and costly tooling re-work, which can easily cost thousands of dollars.
Overall Computational Fluid dynamics simulation helps to help our clients save precious project man-hours and development cost.

3. Practical Industrial Benefits

The use of Computational Fluid Dynamics (CFD) simulation can virtually benefit all Engineering companies in a broad range of industries, such as Aerospace engineering, Automotive manufacturer, Bio life science, Defense Technology and Industrial Machinery.

Broad Range of Simulation Capabilities

At BroadTech engineering, we are able to accurately simulate a wide range of physics models so you can obtain in-depth engineering insight into heat transfer and fluid flow behavior that is critical to your design success covering a broad range of applications:

● Simulation of Heat transfer in solids
● External and internal fluid flow Simulation
● Time-dependent flow Simulation
● Analysis of Laminar, turbulent, and transitional flows
● Analysis of Liquid and gas flow with heat transfer
● Analysis of Subsonic, transonic, and supersonic regimes
● Simulation of Gas mixture, liquid mixture
● Analysis of Water vapor (steam)
● Analysis Conjugate heat transfer
● Simulation of  Real Gases
● Simulation of  Non-Newtonian liquids (to simulate blood, honey, molten plastics)
● Analysis of Incompressible and compressible liquid
● Analysis Compressible gas

Call Us for a Free Consultation

Discover more about what Fluid Dynamics Simulation 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 representative will be happy to assist and share to you in details the benefits & features of Fluid Dynamics Simulation in your companies engineering product development.

Alternatively, for quote request, simply email us your technical specifications & requirements to info@broadtechengineering.com

Other Featured Fluid Dynamics Simulation Case Studies

Large Eddy Simulation of a Reduced Scale Swirl-Stabilized Burner

1. To investigate the effect of spatial and temporal non-uniformity of mixture on polluting emission
2. Solving the Favre filtered Navier-Stokes equations for conservation of mass, momentum, and energy with CH4, O2 and N2 as species and without species source terms.
3. LES results were used to explain the mechanism of flame stabilization and pollutant emission of premixed and stratified flame configurations of the experiments

LED of flame TSF-A-r of the Darmstadt Lean/Lean Stratified Burner

1. To introduce an accelerated computation of combustion with finite-rate chemistry using LES and an open source library for In-Situ-Adaptive Tabulation
2. Solving the Favre filtered Navier-Stokes equations for conservation of mass, momentum, and energy with 19 reacting species
3. The performance of LES-FRC with a partially stirred reactor combustion model, utilizing a relatively complex skeletal mechanism and ISAT-CK7-Cantera was evaluated.

Separation Control on Low-Pressure Turbine by Passive Techniques 

Project Objective: The main objective of this project was to visualize the flow using Gamma-Theta Model and control the separation of a low-pressure turbine on the suction side.
Methodology: Mesh and time independence studies were carried out to validate the experimental data. Geometry modifications were made to control separation, i.e. bumps, dimple, and backward step.
Outcome:
It was found that backward step and dimple geometries reduce the loss coefficient to 12%, but at the different axial location. The results of this project are published in 5 international conferences.

CFD Simulation Analysis of Steady, Turbulent Pipe Fluid flow through a Flow Restrictor 

CFD validation of steady, turbulent flow in straight pipe fitted with flow restrictor (used in internal ducting in aircraft).
Project Objective: Objective of the project was to study the effect of the flow restrictor and validate
the results with experimental data.
Challenges:
– Use the surface wrapper technology to prepare CFD model.
– Performing the grid independence analysis to achieve the optimum mesh for
different mesher.
– Performing the turbulence sensitivity study.

Large Eddy Simulation of a Swirl-Stabilized Pilot Combustor from Conventional to Flameless Mode

1. To investigate flame and flow structure of a swirl-stabilized pilot combustor in conventional, high temperature, and flameless modes
2. Finite rate chemistry combustion model with one step tuned mechanism and large eddy simulation is used to numerically simulate six cases in these modes.
3. Results show that moving towards high-temperature mode by increasing the preheating level, the combustor is prone to formation of thermal with higher risks of flashback.

CFD Analysis of Leakage Detection system for Residential Application 

 

The objective of this project was to detect the leakage in a piping system installed underground or any unseen location using CFD. As per the design, to detect the leakage in the main pipeline, an additional pipe with venturi (having long throat) was branched-out and branched-in to the main pipe.

 

Using CFD analysis, pressure change in the main pipe, secondary pipe and throat region were analyzed for different flow rate and throat size to find out best throat design for minimum flow rate. DesignModeler and ANSYS Meshing were used for Model cleanup, fluid volume extraction, and Meshing, respectively. CFD analysis was carried out by using the ANSYS Fluent.

CFD Simulation of Fluid Flow through 90 degrees Bend Pipe

CFD study of steady, turbulent flow through 90-degree bend pipe (used in internal ducting in aircraft).
Project Objective: Objective of the project was to study the fluid flow behavior and validate the
results with experimental data.
Challenges:
– Modeling the geometry
– Generating mesh and performing grid independence study which satisfies
most of the turbulence models (of course not all), which can be used as
reference for similar works in future.
– Performing turbulence sensitivity study.
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