CFD Consultants Archives -

Case Study: Aerodynamic Optimisation of Arion8 High-Speed Bike

August 8, 2025August 8, 2025 By jameslinfield@hotmail.com Comment Closed

Competitive Aerodynamics for One of the Fastest Hand-Cycles Ever Built Client: University of Liverpool Velocipede (ULV) Team Sector: Aerodynamics / Sports Engineering Challenge The University of Liverpool Velocipede Team (ULV) embarked on Arion8, a next-generation hand-powered racing bike targeting new world records at the World Human Powered Speed Challenge (WHPSC) 2025. ULV has a proven pedigree in this category, holding the current male and female hand-cycle world speed records of 51.58 mph (83.02 km/h) and 46.54 mph (74.88 km/h) respectively, set in 2018 with their Arion4 vehicle. The project was constrained by a tightly defined external envelope to meet rider ergonomic needs, safety rules, and critical transport limitations. Given the limited time and geometry freedoms, much of the vehicle was effectively locked down by early design requirements and keep-out zones (similar to those in motorsport). The rear tail section stood out as the best remaining opportunity to reduce overall aerodynamic drag before finalising the design. Solution As both a technical sponsor and aerodynamic partner, Navier supported...

Case Study: Aerodynamic Development of Vertical Axis Wind Turbine

June 16, 2025August 8, 2025 By jameslinfield@hotmail.com Comment Closed

Solving Urban Wind Energy Challenges with Validated VAWT Blade Design Client: Alpha 311 Sector: Renewable Energy / Wind Technology Challenge Alpha 311 tasked Navier with aerodynamic development of a new vertical-axis wind turbine (VAWT) for their emerging product line. The goal was to maximise power output while ensuring the design remained compact, lightweight, and easy to retrofit onto existing infrastructure like lighting columns or bridges in urban environments. Key objectives included: Strong performance at low and turbulence-rich wind speeds Minimised blade size and material cost, without sacrificing output Suitable for roadside, rail-edge, and rooftop installations Alpha 311 needed a turbine that could fit almost anywhere and generate power where it’s needed most. Solution Navier led a blank-page aerodynamic development of custom blade profiles, focusing on a hybrid drag- and lift-based aerofoil concept. The process included: Parametric 2D and 3D blade modelling using CFD Iterative optimisation targeting torque output across expected wind scenarios Comparative simulations against conventional Savonius and Darrieus VAWT forms The result was a compact, high-performance blade design that achieved the power goals with a...

Case Study: Lab Stack Pollutant Dispersion Assessment

June 14, 2025June 16, 2025 By jameslinfield@hotmail.com Comment Closed

CFD-Based Stack Height and Pollutant Dispersion Assessment for Design and Compliance Client: University of Derby Sector: Atmospheric Pollutant Dispersion Challenge As part of planned laboratory upgrades, the University of Derby required an assessment of the proposed fume stack configuration for B-Block. The upgrades included a significant increase in ventilation flow due to additional fume cupboards, raising concerns about whether the existing stack height would provide adequate dispersion of airborne pollutants. Key priorities included: Preventing re-ingestion of exhaust gases at nearby air intakes and windows Managing exposure risk for building users and pedestrians Demonstrating compliance with UK health-based exposure standards Solution Navier carried out a computational fluid dynamics (CFD) based atmospheric dispersion study to evaluate plume behaviour under a range of wind conditions. The simulation accounted for: Local building wake effects and site topography Buoyancy-driven dispersion and atmospheric boundary layer behaviour A range of wind directions informed by site-specific wind rose data To benchmark pollutant risk, a chemical survey was undertaken covering over 150 substances used within the laboratory. Based on hazard codes and evaporation...

Navier presents CFD for contact tanks to water utilities at WRc forum

January 26, 2021January 26, 2021 By Guest Admin Comment Closed

CFD analysis for Chlorine Contact Tanks Navier was delighted to receive an invitation from the Water Research Company (WRc) to present at one of their quarterly Disinfection Forums. The forum engages several water utilities based around the UK to address common issues and share best practices. Navier was asked to give a presentation on the use of Computational Fluid Dynamics (CFD) to model chlorine contact tanks (CCT’s). Generally, CFD modelling has become the preferred method for verifying the performance of new-build contact tanks. When applied correctly CFD has shown excellent agreement with both lab scale and on-site tracer studies. Example of poorly performing asset But CFD can also provide benefits in improving existing assets and de-risking tank 'change of use' activities. Example of contact tank retrofit modifications Some of these benefits include: Evaluating hydraulic & mixing efficiency of potential retrofits;Characterising performance over complete operating envelope accounting for seasonal water supply variations;Assessing energy efficiency (OPEX) of proposed modifications. The importance of assessing the energy efficiency of a proposed modification was...

Navier Named in List of Top 40 CFD Companies Worldwide

October 1, 2019October 20, 2019 By Guest Admin Comment Closed

Navier Named in List of Top 40 CFD Companies Worldwide Finding the right CFD consultant for your project can be very challenging. Luckily, our friends at Resolved Analytics have kindly compiled a list of the top 40 CFD companies worldwide, for everyone's use in determining what CFD service provider is the best fit for their unique application or problem. The list includes the companies name, location, and a link to their websites. The companies are very diverse and we appreciate that trying to qualify the right consultancy for your application can be overwhelming. Click here to check out the full post....