Finite

While conducting CFD analysis through Ansys Fluent, I realized my lack of theoretical knowledge in fluid dynamics. Therefore, I plan to study fluid mechanics theoretically. Since I haven't studied the theoretical aspects of fluid mechanics since my undergraduate courses, there might be inaccuracies, but I intend to write based on my understanding. The first is the Reynold's Transport Theorem. Th..

At the beginning of this blog, I calculated the teoretical Eigenfrequency and compared the theoretical solution with the analysis results obtained through modal analysis in COMSOL and Optistruct(7_Modal analysis and 8_Modal analysis(2)). Today, I will conduct a Modal analysis with the same material properties and boundary conditions using Ansys. The geometry to be used for the problem is as foll..

I have conducted structural analysis using Optistruct and COMSOL, and my experience with Ansys has been limited to CFD analysis and electromagnetic analysis, which I have not yet uploaded. While working on CFD analysis, I became interested in trying structural analysis with Ansys as well. Therefore, I preoceeded with a simple example and plan to compare the results with those from a previous pos..

Today, we will follow an example provided by Ansys Fluent to learn about CFD analysis. This case is a partially premixed combustion scenario, featuring inflows that reflect both mixed and non-mixed conditions. The fuel, a methane and air mixture, has an equivalence ratio of 0.8 and is injected at a temperature of 300K with an axian velocity of 50m/s and a swirl velocity of 30m/s. Air is injected..

In this post, we will perform a CFD simulation of three-dimensional transonic turbulence. Transonic refers to speeds that exceed the speed of sound, meaning velocities between Mach 0.8 and 1.2. First, the geometry to be used in the analysis is as follows. The description of geometry creation and meshing will be omitted. In the setup stage, select double precision in the launcher settings. Single..

In this post, although I haven't dealt with it during my graduate studies, I aim to study fluid dynamics, which seemed interesing and I wanted to learn more about. Instead of focusing on the theoretical aspects, I plan to concentrate on using commercial software for simulations, specifically using Ansys Fluent for the simulations. I'm lacking in many areas and need to learn more, so I plan to fo..

In the last post(76_Topology Optimization using Optistruct), I attempted a compliance minimization topology optimization problem in Optistruct. I wanted to compare it with Sigmund's paper, so I tried a simple setup, but it was difficult to make an accurate comparision, and more importantly, the results were not sarisfactory to me. The biggest advantage of using commercial software for optimizati..

In the last post(75_A 99 line topology optimization code written in Matlab), I wrote a review about paper on topolgy optimization using MATLAB. Today, I will proceed with topology optimization in Optistruct, setting the boundary conditions and constraints identically to those presented in the MATLAB code from that paper. The code feature in the paper is commonly referred to as the "99line". In t..

Sigmund, Ole. "A 99 line topology optimization code written in Matlab." Structural and multidisciplinary optimization 21 (2001): 120-127. Before explaining the paper, I would like to start with some basic information about optimization. Optimization, simply put, is the process of finding a solution that minimizes or maximizes an objective function while satisfying a set of constraints. Structura..

In a previous post, we saw that the forward encoder model is defined as a sequence of Gaussian conditional distributions, and today, we'll write about additional content. Inverting the encoder model becomes a challenging distribution to handle because it requires intergrating over all possible starting vector values ${\text{x}}$ for the unknown data distribution $p({\text{x}})$ we aim to model. ..