Computational Fluid Dynamics (CFD)

Computational Fluid Dynamics (CFD) is a powerful mean of accurately visualizing physical aspects during an incident. Where standard methods often merely make conservative assumptions, CFD enables high-precision analysis of the situation.

NRG and SAVE have joined forces in a partnership in the area of CFD simulations. When it comes to industrial (fire) safety, SAVE couples many years' experience with a continuous focus on the latest developments.
NRG operates in the nuclear market and boasts a highly advanced CFD team. Safety requirements are extremely stringent in this industry.

Heat radiation contours and pressure waves

Scenarios that provide a display of heat radiation contours are used in the event of a fire incident such as tank and tank pit fires, pool fires in process facilities, and jet fires. Explosions generate pressure waves with , depending on the environment, increasing or decreasing energy levels. Each wave is different in terms of size, shape, duration, and location of liquid or gas. CFD considers all these factors.

Specific substance properties and environmental circumstances are also factored in.


The highly visual nature of CFD makes it possible to assess a situation in a 3D rendering of the area. This 3D rendering shows the temperature of surrounding objects or the pressure accumulation within a certain area. Smart interlinking of simulation results and material properties subsequently enables creation of a profile of expected damage, which is crucial in deciding what measures to take.


When it comes to impact assessments, every company is subject to authorities. The required risk calculations are made using well-known software, such as PHAST. In certain specific cases, however, an alternative package such as CFD is better suited. Using CFD is permitted, provided it can be validated and justified. CFD gives companies a perfect means to justify less common safety measures.