https://akenji3.github.io/en/tags/karman-vortex/ Recent content in Karman Vortex on akenji's lab Hugo en Fri, 24 Jan 2025 00:00:00 +0000 https://akenji3.github.io/en/post/20250124_karmanvortex/ Fri, 24 Jan 2025 00:00:00 +0000 https://akenji3.github.io/en/post/20250124_karmanvortex/ <h2 id="motivation">Motivation</h2> <p>Since the end of last year, I have been studying PINNs, learning models using the PINNs method for 2-dimensional fluids, and using those models to make inferences. It was not easy to show the results of the paper I referred to, and I had some difficulties. As I wrote in the “Summary” section of <a href="https://akenji3.github.io/en/post/20250111_laminarflow/">this post</a>, I was thinking of trying to predict the Karman&rsquo;s vortex street using the PINNs method.</p> <p>In the course of my research, I learned from <a href="https://arxiv.org/abs/2306.00230">this paper</a> that “data-free PINNs are unable to predict vortex shedding”. If that is the case, I decided to try simulating the Karman&rsquo;s vortex in OpenFOAM first.</p> <p>This post is a summary of my simulation of the Karman&rsquo;s vortex in OpenFOAM.</p>