The objectives of performing CFD modelling and simulation of plume emission on an oil platform was to study how the plume affects helicopter take off and landing. Knowing this vital information allowed the landing platform to be located away from the plume

CFD analysis to determine the erosion rate inside a steel pipe due to particles entrained in the liquid medium. Our CFD analysis showed that erosion was most likely to occur around bends or around the region where the fluid has to change direction

CFD ceiling fans - Jimmy Lea P/L

Multiphysics CFD modelling and simulation study conducted on a multiphase mixing tank to determine the degree of homogeneity and whether there was any dead zones. This CFD study also aimed to reveal the flow profile inside this tank.

​[Click photo to see animation]

CFD particles study - Jimmy Lea P/L
CFD particles erosion study - Jimmy Lea P/L

CFD simulation was performed to calculate and predict the concentration of toxic carbon monoxide (CO) gas emitted by motor vehicles in car park. The objective was to determine the minimum air supply required to dilute the carbon monoxide such that it complies with government statutory requirements

In this project, we performed CFD simulations to capture the phenomenon associated with the accidental release of a highly flammable fluid stored in a major hazard facility (MHF).The results, as confirmed by our in-house chemical engineers, showed that the concentration of evaporated fluid was between LFL and UFL

CFD gas diffusers - Jimmy Lea P/L
CFD open channel flow - Jimmy Lea P/L

CFD simulation analysis, which also incorporated the perforated floor,  of a cleanroom. From the simulation results the vector plot shows the air flow profile around a wafer box and the table. Then, the next stage was to simulate particles behaviour around the wafer box

​[Click photo to see animation]

CFD analysis of sump pumps design configuration to ensure that air entrainment was minimised by eliminating the formation of vortex. This CFD simulation involved multiphase physics of air and water

CFD gas diffusers - Jimmy Lea P/L

Wind-driven rain modelling and simulation study which involved detailed study of several WDR-resistant louvre designs. The simulation results showed that the triple bank louvre, as shown, trapped most of the rain droplets whilst allowing wind to pass through it

CFD static mixer - Jimmy Lea P/L
CFD acoustic study - Jimmy Lea P/L
CFD acoustic study - Jimmy Lea P/L

In this project, macro and micro CFD simulation was employed to provide guidance to architects and engineers with respect to the design and construction of these highly effective naturally ventilated buildings that met the Singapore BCA Green Mark requirements

CFD impeller study - Jimmy Lea P/L
CFD UV reactor - Jimmy Lea P/L

The objectives of performing CFD modelling and simulation of cooling tower exhaust were to determine the extent of exhaust recirculation into the cooling towers and to establish the temperature profile around the vicinity of cooling towers

A ceiling fan effectively enhances evaporative cooling by disrupting the stagnant layer of air that surrounds the body, leading to heat loss reduction. Hence, the primary objective of this CFD modelling and simulation study was to characterise the ceiling fan-induced wind profile 

CFD gas diffusers - Jimmy Lea P/L
CFD offshore platform - Jimmy Lea P/L

This building housed data centres and the generators emitted much heat into the environment. The client engaged our CFD analysis consultants to show the heat dissipation profile from the generators and whether the heat was recirculated back into the building

CFD engineering was employed to verify and predict whether a water clarifier designed for a wastewater treatment plant will perform as intended by taking into considerations clarifier design configurations, desired flowrates, capacity and property of settling materials

Design verification using CFD technology was conducted to ensure that what the engineers design would work in the real world. This is a multiphase tank which involved solid, liquid and air. One of the objectives was to reduce the level of turbulence

The performance of this cyclone was predicted by CFD particulate simulation. From the initial simulation results, several design variants were designed and the simulation repeated for each design variant. The variant which demonstrated value for money and effective separation was selected for detailed design

In this CFD simulation, waves generated from the wind was created and these wave would pound on the support columns of the platform to determine the stress load on these columns. Knowing the stress loads would help structural engineers to size the columns appropriately.

CFD acoustic study - Jimmy Lea P/L
CFD gas diffusers - Jimmy Lea P/L

In this project, the pressure drop across HVAC ducts within a 4-storey building was modelled and simulated using CFD. From the results obtained, "what if" scenarios were simulated. Then, optimisation of the duct network was performed to improve its overall performance

Wind-driven rain (WDR) - Jimmy Lea P/L

CFD simulation was performed to calculate and predict wind effects from various directions, particulary wind loads on buildings. The values obtained from this CFD wind load study was employed to calculate and determine the structural resilience of these buildings.

CFD simulation to characterise gas diffusers with respect to diffuser hole diameter sizes, locations of holes, number of holes and length of diffuser tube. After the characterisation stage, this diffuser was optimised to enhance mass transfer rate whilst minimising gas flowrate

This CFD simulation study was performed to determine the optimum mixing tank design configuration. The variables investigated were the number baffles, width of baffles, number of impellers, diameter of impellers, number blades, angle of blades and width of blades

CFD mixing tank - Jimmy Lea P/L

We provided this CFD analysis services to our client based in Singapore because the client wanted to optmise the HVAC design in the form of enhancing the thermal comfort for the building occupants but at the same time reducing the energy consumption of the building

This CFD analysis conducted inside a globe valve to determine the erosion rate, flow profile, level of turbulence inside this valve. The information revealed by our CFD study enabled the valve designer to optimise its design

CFD ventilation study - Jimmy Lea P/L
CFD generator heat dissipation - Jimmy Lea
CFD cooling tower exhaust study - Jimmy Lea P/L
CFD thermal comfort study - Jimmy Lea P/L

CFD modelling and simulation of a transformer room. Transient simulation results show the time taken to reach steady-state room temperature. All available heat sources and heat sinks were considered including heat  conduction/flux through the immediate walls

Transient CFD simulation study to predict the duration it takes to fill up the entire manufacturing facility if a fire Q=700kW was to breakout. This CFD study also determined the concentration of the smoke at various locations and how much time did it take for the smoke to be evacuated

A thermal comfort CFD analysis was performed on the entire airport facility to analyse the impact of changes, answered 'what if' scenarios and optimise the design such that this facility would provide excellent thermal comfort to the users whilst minimised its total energy usage

Blast Effects Analysis - Jimmy Lea P/L

CFD simulation of a data centre with a view to visualising the airflow, determining the presence of hot spots, minimising energy consumption by optimising the design via relocating the server racks, tile diffusers and the location of computer room air conditioners (CRACs)

​​[Click photo to see animation]

On one hand, transient CFD simulations were conducted to determine the drag coefficient of a boat's hull. On the other hand, the same CFD simulation also determined the thrust generated by all the propellers. From these two results, the boat's maximum speed was predicted.

CFD sump pump - Jimmy Lea P/L
CFD gas diffusers - Jimmy Lea P/L

This multiphysics computational fluid dynamics (CFD) analysis was conducted to optimise the design of a UV reactor. This simulation involved studying the irradiation exposure of UV, flow profile, turbulence, number of UV tubes, location of inlet and outlets

CFD gas diffusers - Jimmy Lea P/L
CFD natural ventilation study - Jimmy Lea P/L

This project involved natural ventilation studies using CFD simulations to justify alterations to the building internal partitions. CFD results showed that the addition of additional corridors would improve the natural ventilation, hence justifying the cost of building modifications

CFD smoke carpark fire - Jimmy Lea P/L

CFD aeroacoustic simulation study was performed to predict the noise level emanating from a marine propeller. Then, design improvement measures were proposed to the client to reduce the noise signature of this propeller. Result shows that the max noise emitted was 85dB


In this project, we were engaged to perform detailed CFD study to determine the effectiveness of an existing separator that separates sedimentation from water. Then, we proposed strategies to rectify the existing issues, optimise the performance of this separator and to improve the water quality

CFD modelling and simulation of wind driven rain impacting on a train station platform. The results determined whether the station's weather protection was effective in preventing rain water from entering the MRT station interior without compromising its natural and smoke ventilation abilities

The purpose of this CFD simulation study was to verify that the static mixer will work effectively. The study also aimed to determine the residence time distribution and to eventually optimise the design of this static mixer

Performance characterisation of an open channel flow showing water flowing over a weir. The results enabled engineers to design and optimise the geometry of weir so as to meet desired flowrate in order to prevent flooding

The main objective of this CFD modelling and simulation heat transfer study was to identify the heating medium minimum flowrate that would avoid flow mal‐distribution in the manifold (header) and with flow variation not exceeding 5% in each of the tube

CFD offshore platform - Jimmy Lea P/L
CFD splitter tank - Jimmy Lea P/L
CFD pipe erosion prediction - Jimmy Lea P/L
CFD pollution analysis - Jimmy Lea

CFD modelling and simulation study to determine particles erosion using the Lagrangian discrete phase model in ANSYS Fluent which follows the Euler-Lagrange approach. CFD results recommended the most effective design to minimise erosion and contain the particles


CFD analysis services is one of our core simulation services. Our CFD consultants use ANSYS Fluent which is the most-powerful CFD simulation software tool available, empowering our clients to go further and faster as we optimise their system's performance. Fluent includes well-validated physical modelling capabilities to deliver fast, accurate results across the widest range of CFD and multiphysics applications. The projects our CFD specialists undertake are related to aerodynamic studies, single-phase, multiphase phenomena, multispecies, multiphysics, reaction chemistry, sliding mesh, combustion, energy and solidification-melting processes. 

As one of the specialised CFD consultancy firms providing services to clients based in Sydney, Melbourne, Brisbane, Perth, Canberra, Adelaide, Darwin, Hobart, Singapore, Jakarta, and other major cities within the Asia Pacific region, we have successfully delivered over 100 projects to clients in the  building & environment, chemical & petrochemical, defence & security, food & beverage, marine and offshore, mining, oil & gas, pharmaceutical, renewable energy, semiconductor and water industries. With a combined CFD experience of over 50 years, Jimmy Lea P/L is considered as the leading engineering and simulation firm within Asia Pacific region.

CFD acoustic study - Jimmy Lea P/L
CFD transformer room - Jimmy Lea P/L

This transient multiphase CFD study involved creating waves which would continually pound on the concrete matting used to line a lagoon embankment. One of the main objectives of this study was to predict with high accuracy the concrete erosion rate due to waves energy and particles impact

We provided this CFD analysis services to our Singapore-based client to determine the most effective and efficient locations for the aircon diffusers so as to maximise thermal comfort whilst reducing energy consumption. The study includes temperature, relative humidity and air velocity

CFD HVAC ducts - Jimmy Lea P/L
CFD data centre - Jimmy Lea P/L
CFD of chemical reactors - Jimmy Lea P/L

The key objectives of conducting this performance-based fire safety design using CFD technology were to characterise the behaviour of fire, smoke and ultimately determine with high confidence the robustness of the proposed fire safety design

CFD modelling and simulation of a shell-and-tube heat exchanger to optimise the internal layout with respect to the number of tubes, location of baffles, detection of dead zones and calculating the level of turbulence so as to maximise the heat transfer rate

CFD modelling and simulation study to determine how much sand particles would fly out of a truck carrying a pile of sand and how far did the sand fly. Our CFD study also determined which residential areas were severely affected by this sand transport process

CFD gas diffusers - Jimmy Lea P/L
CFD acoustic study - Jimmy Lea P/L
CFD acoustic study - Jimmy Lea P/L

CFD simulation analysis showing a 25mm projectile travelling at Mach 3 fired from an advanced fighter jet. These results enabled engineers to successfully reduce the drag coefficient by modifying the geometry of this projectile. This led to an improvement in the projectile's performance

CFD globe valve - Jimmy Lea P/L
CFD aircondition - Jimmy Lea P/L
CFD projectile drag coefficient - Jimmy Lea P/L

CFD simulation using discrete phase model (DPM) of a hot water tea leafs blancher to determine whether the existing turbulence generated, assisted by water circulation and air bubbles, was sufficient in order to maintain a turbulence circulation. 

CFD gas diffusers - Jimmy Lea P/L
CFD wastewater clarifier - Jimmy Lea P/L

Detailed blast effects analysis was performed to determine the peak overpressure due to an explosive detonating in a busy CBD. The results showed the number and location of buildings inside the radius of impact and the degree of damage sustained by the affected buildings

​[Click photo to see animation]

This multiphase computational fluid dynamics (CFD) analysis study was conducted on a 2-phase oil and water separator during the design stage, prior to fabrication, to predict whether it will work effectively. The study also aimed to optimise the design of this separator

CFD multiphase separators - Jimmy Lea P/L
Engineering & Simulation Consultants
CFD shell-and-tube heat exhanger - Jimmy Lea P/L

CFD model showing equipment located on a building roof top. Simulation result shows air flow profile exiting from cooling towers and high plume fans. CFD results also determined the extent of short-circuiting of discharges and the impact of (plume) on nearby buildings