6. DAKOTA-OpenFOAM optimization loop | Derivative-free optimization

Description:

The blunt body shape optimization case - Part 4. 🤠 Derivative-free optimization 👍 CFD optimization and automation. 👏 Engineering design optimization loop. 🤖 DAKOTA optimization toolbox In this demo case, we use the following tools: - Geometry generation: Salome. - Mesh generation: Salome. - Balck box solver: OpenFOAM 11. - Automatic post-processing: bash scripting and Python. - Plotting: Python. - Optimization and orchestrating tool: DAKOTA 6.19.0 00:00 Introduction - Preliminaries 02:32 Choosing an optimization method. General guidelines and decision matrix. 04:40 An excellent book on optimization by Vanderplaats 06:15 DAKOTA's input file - Some derivative-free methods 07:30 Efficient global optimization EGO - One of my favorite methods in DAKOTA 12:05 Let's launch an optimization study using the EGO method 15:25 Let's take a look at the outcome of the EGO method 18:15 What a beautiful test case 20:31 Mesh adaptive search method MADS 23:15 Let's launch an optimization study using the MADS method - I selected the wrong method 25:33 Let's launch an optimization study using the MADS method - The right method this time 26:53 Let's take a look at the outcome of the MADS method 31:35 DAKOTA's input file - Some derivative-free methods 32:20 Single objective genetic algorithm SOGA 34:11 Fine tunning the methods' parameter 37:00 Let's launch an optimization study using the SOGA method 39:32 Let's take a look at the outcome of the SOGA method 41:39 SOGA method - Where is the best solution? 44:30 Warning: do not use biased data to construct meta-models. 46:31 SOGA method - What iteration corresponds to the best solution? 48:58 Pattern search method or asynch_pattern_search in DAKOTA 49:58 Let's launch an optimization study using the asynch_pattern_search method 51:00 Let's take a look at the outcome of the asynch_pattern_search method 52:30 Final remarks - Main takeaways Compressed tutorial: - Blunt body shape optimization case Deck of slides: - Blunt body shape optimization Related videos: Blunt body shape optimization | Case presentation Related playlists: - Transitioning to OpenFOAM 11 from OpenFOAM 10/9, - DAKOTA optimization toolbox | Explore and predict with confidence | Installation and getting started, Software links: - - - - - - - - - - Additional links: - Excellent reference for optimization methods, 👍 CFD optimization and automation. 👏 Engineering design optimization loop. ********************************************************************************** Wolʇ Dynamics, your reliable partner for CAE solutions, CAD and solid modeling → Meshing → Simulations → Automation and optimization → Post-processing → Data analytics and ML → Reporting Why Wolʇ Dynamics? Simply look at our banner - notice how the F appears backwards. Wolʇ Dynamics ↔ Flow Dynamics 😯+💣=🤯 **************************************************************************** 👉 Subscribe and hit the bell to see new videos or we will go back to OpenFOAM 3: 🖖 Join our channel to help us create more content. By joining our channel, you can also get access to perks: Follow us: Twitter → twitter.com/WolfDynamics LinkedIn → linkedin.com/company/wolf-dynamics **************************************************************************** Wolf Dynamics makes no warranty, express or implied, about the completeness, accuracy, reliability, suitability, or usefulness of the information disclosed in this training material. This training material is intended to provide general information only. Any reliance the final user place on this training material is therefore strictly at his/her own risk. Under no circumstances and under no legal theory shall Wolf Dynamics be liable for any loss, damage or injury, arising directly or indirectly from the use or misuse of the information contained in this training material. **************************************************************************** #optimization #CFD #CAE #aerospace #WSL #linux #dakotaopt #snappyhexmesh #openfoam #computationalfluiddynamics