Author's Latest Posts

Understand The Physics Of Re-Entry Vehicles Using Numerical Modeling And Simulation

In the early years of space exploration, scientists and engineers dreamed of sending vehicles to Mars that could land on the planet's surface and explore its terrain. However, one of their biggest challenges was safely reentering the Martian atmosphere. Many early attempts at Mars missions failed because the vehicles either burned up during re-entry or crashed onto the surface. However, as tech... » read more

Cleaning Marine Geometries Has Never Been Easier

Ship designers and naval architects increasingly use computational fluid dynamics (CFD) tools for more accurate solutions, detailed physics, and quicker results. Marine ship design studies in the past relied mainly on scaled-down models in towing tanks for insights into ship resistance, seakeeping, propulsion, and maneuvering. However, these models had discrepancies in their Reynolds and Fro... » read more

Boost Your CFD Workflow Productivity With An API: Part 1

If you're in the field of computational fluid dynamics testing or studies, you already know how much time and effort it takes to complete the tasks involved. Hours upon hours are spent on geometry clean-up, meshing, and post-processing. Furthermore, when you're dealing with similar models that have new constraints or dimensions, the work can feel tedious. But don't worry! There’s a way to sim... » read more

Reduce Aquaculture Biological Footprint With Fluid-Structure Interaction Simulations

Aquaculture, which has existed since 1000 BCE, is gaining widespread recognition for its potential to provide sustainable fish products. This form of farming, also known as captive breeding, is the go-to method for fish farmers to satisfy the growing demand for seafood and freshwater fish. In aquaculture farming, choosing the right location is substantial for healthy breeding, such as having co... » read more

High-Fidelity CFD Mesh Generation With Voronoi Diagram

We are attuned to the fact that the law of nature, or nature’s rule, drives various scientific phenomena. Humans often replicate naturally occurring phenomena to achieve a desirable outcome, similar to how scientists mimic photosynthesis to generate energy. Comparable is the case with Voronoi geometries. These geometries are widely seen in beehives, the structure of sponges, rock fragmentati... » read more

Predicting Hull Resistance Curve Using Marine CFD

In this user case, Marintek uses Fidelity Fine/Marine and Hexpress for resistance curve prediction of a planning hull and its validation against the model test cases. Team involved End User: Eloïse Croonenborghs, Research Scientist at MARINTEK, Maritime division, Trondheim, Norway Team Expert: Sverre Anders Alterskjær, Research Scientist at MARINTEK, Maritime division, Trondheim, Norway... » read more

Easing The CFD Engineer’s Life With Automated Meshing

Mesh generation is where the user’s expertise and ingenuity can influence the convergence and accuracy of a computational fluid dynamics (CFD) solution by selecting mesh type, topology, and cell quality. But with the rush to automate mesh generation, will the control be ripped out of the user’s hand, or will a valuable engineering skill be lost? The extent to which meshing can be automated... » read more

Structured Grids Are Here For An Eternity

With unstructured meshes delivering promising results in resolving boundary layers, wakes, and other flow features for complex geometries, one might arrive at the conclusion that structured grids will soon be out of the markets because of their reputation for taking a long time for generation. On the contrary, structured grids give you two things that unstructured meshes may lack, i.e., quality... » read more

Simulate Rotor Hub Vortex Shedding In Helicopters

Although helicopter aerodynamics involves the same forces that arise in airplane aerodynamics, these forces occur differently due to fluid flow dynamics across the aircraft. Helicopters take advantage of the free stream flow along a rotor blade to produce lift and thrust. In rotating systems, the rotor hub clasps the blades and connects them to the main shaft of the system. The rotor in a h... » read more

The Era Of Fluid Simulations In Hollywood

With the magnificent real images of water pouring from the sky and the after-fire fumes from a car, there is no escaping from the laws of physics in movies either! Fluid simulation in the '50s and '60s was modeled mathematically before the computer graphics industry made its appearance. In the early ’90s, computer graphics (CG) in movies such as Waterworld and Titanic were restricted to wi... » read more

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