2017年3月13日 · CFD (computational fluid dynamics) includes any numerical method used to solve fluid flow problems. FEA (finite element analysis) is one numerical method for solving partial differential equations, independent of what the equations are modelling. It is true that FEA is the most popular method for solving computational mechanics problems.

2023年12月18日 · What I read: Computational Fluid Dynamics (CFD) refers to the use of the numerical techniques to solve fluid dynamical problems. When I say 'numerical techniques', I am referring to a very broad range of techniques, including, but not limited to, Finite Difference Methods, Finite Element Methods, Finite Volume Methods, Polynomial Fitting ...

2021年8月28日 · $\begingroup$ @Jim Clark , thank you , actually i even need to show the chip formation a nd screw thread formation on the surface of workpiece, there will also be a lot of relative motion between gears and shafts... it will it be very good if you can tell me more about the software , i have 0 idea or knowledge about graphics and software $\endgroup$

2025年3月9日 · I have entered information to ChatGPT-4.0 about efficiency of an energy producing device. ChatGPT-4.0 has giving it a 2500 % efficiency gain and tested against all of its abilities of different software providers simulations for CFD including Real SIMULATIONS runs. What is most cost effective method to verify its findings from reputable source ?

2019年2月21日 · Because it typically does not make sense to solve CFD equations from the point of view of individual particles, an Eulerian FVM approach is often used. In contrast, Lagrangian methods are essential for solids because we typically need to know where each point in a structure moves to under the action of loads.

2023年7月10日 · First image is model setup. Clasp is rigidly constrained at top surface. Rectangular beam is affixed to clasp at clasp faces (locally constrained), by way of adhesive pads (second and third images).

2019年4月23日 · Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

2019年3月24日 · I think the full answer is a little of both. When choosing to use CFD for any analysis there is always a trade-off between accuracy vs. cost. Let's take the rocket nozzle for example. The real physics of the problem include effects such as unsteadiness, turbulence which is inherently 3D, combustion, reacting chemicals for the combustion ...

2018年6月27日 · Quoting from one paper related to FEA, The output of a mesh generator consists of a set of nodes, and a set of elements (which represents the mesh topology). [...] The nodes are created first, and they are then connected to form triangular or quadrilateral elements. This can be divided into two subcases.

2015年7月24日 · I'm running an FEA on a vessel that has a "splashing water" effect with vibrations. The problem I'm really coming up against is what kind of Young's Modulus and Poisson's ratio to use for the fluids? - air and water. I have been successful in using the bulk Modulus, and treat it as uncompressible - i.e. Poisson's ratio of 0.5, but I never used ...