COMPUTATIONAL FLUID DYNAMICS

What is CFD?

The fluid problem complexity arises from the nature of it’s governing equation, the Navier-stokes equations, which are non-linear partial differential equations. These equations are super hard and even impossible to solve using the analytical method and mathematically not yet fully understood, the price of $1.000.000 is prepared for those who solve these equations “smoothly” (read millennium prize).

Unlike well-understood problems, Instead of solving it’s governing equations, engineers and scientists prefer to solve the fluid mechanic problems using experimental methods in the lab, or using a numerical method to “estimates” the solution. The later is called Computational Fluid Dynamics (CFD).

Using CFD method, engineers or scientists are able to solve or predict the fluid flow-related problems such as studying the basic flow characteristics, design optimation, design assessment, failure investigation, proofing novel ideas, design comparison, and many others tasks in more flexible, fast, economically and deeply compared to lab experimental study or risky field-test.

openFOAM software

OpenFOAM is the free, open-source CFD software developed primarily by OpenCFD Ltd since 2004. It has a large user base across most areas of engineering and science, from both commercial and academic organizations. OpenFOAM has an extensive range of features to solve anything from complex fluid flows involving chemical reactions, turbulence and heat transfer, to acoustics, solid mechanics and electromagnetics (openfoam.com).

free opensource CFD program openFOAM

Project Examples

AEROSPACE INDUSTRY

simulation of jet fighter aerodynamic performance

AUTOMOTIVE INDUSTRY

Evaluation of lift and drag coefficient of a racing car

HEATING, VENTILATION, AND AIR CONDITIONING (HVAC)

Church building external aerodynamics analysis
building ventilation airflow analysis

PIPING AND VALVE DESIGN

Design and optimation of valve design before mass production
Design of sand jet perforator flow and abrasion analysis

TURBOMACHINERIES

Evaluation of centrifugal pump performance

RENEWABLE ENERGY INDUSTRY

Design of wind turbine blade

FOOD INDUSTRY

shipping container temperature analysis

PROCESS ENGINEERING

combustion chamber chemical reaction (combustion) analysis
Cyclone separator separation efficiency analysis
Ejector simulation to analyze turbulent flow in the vicinity of nozzle and difuser

MEDICAL SCIENCE

Simulation to visualize the airflow and droplet particles during a sneeze
Reconstruction of virus spreading in a restaurant

GEOPHYSICS

Simulation of volcano plume using LES compressible flow

And sometimes we do CFD for some fun 😀

simulation of iron man suit aerodynamics

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By Caesar Wiratama

aeroengineering.co.id is an online platform that provides engineering consulting with various solutions, from CAD drafting, animation, CFD, or FEA simulation which is the primary brand of CV. Markom.