On March 2018, Mae-lab and AKL (Advanced Knowledge Laboratory- the developer of FlowDesigner,) organized a workshop about Parametric design & CFD. AKL Invited Assitant Prof. Tanighchi and Mr. Gao (aka Kumo san) as keynote speakers and panelists.

The first section was a tutorial on using the GH2FD, a tool that connects Grasshopper 3D to FlowDesigner. Mr. Gao, a Ph.D. student in Mae-lab and the developer of GH2FD gave a lecture about the basics of Grasshopper 3D and GH2FD. In the first part, basic ideas of the parametric design was introduced. Following the introduction, participators built a GH model of an office building, which was transferred into FlowDesigner. In the third part of the workshop, the outputs form FD were retrieved back and visualized in GH.

Comparing the various openings scenarios in the Grasshopper platform

The second session was a presentation by Mr. Yamato, from Maeda corporation. Mr. Yamato shared his practice expertise on using parametric analysis and simulations in projects. He concluded by raising the current obstacles as well as his prospect on the CFD-parametrization topic.

The Final parts was a paneling session with Q&A opened to the audiences. Mr. Taniguchi, Mr. Gao, and Mr. Yamato were on the panel. Participates inquiries reflected their curiosity on further understanding more about the panelists’ experiences with parametric design and simulations in real projects and in their ongoing research alike.

自分も審査委員をさせていただいている「第3回日本エコハウス大賞シンポジウム」が01/25にOZONEで開催されます。「楽せず楽しめ！ 温熱デザイン」がテーマです。ご興味のある方はぜひご参加ください。

第3回日本エコハウス大賞シンポジウム

快適な暮らしを考えるということで、住宅雑誌Replanに「いごこちの科学」を連載しています。今回、三木編集長のご厚意で、夏の過ごし方の回をネットに公開いただきました。ぜひご覧ください！

http://replan.ne.jp/content/igokochi1/

Caution: GH2FD ONLY works with FlowDesigner 2107 or latter.

注意：FlowDesigner 2017は必要になり、以前のバーションはGrasshopperにコネクトできません。

Plug-in

Download from Google Drive

Last update: 2018.1.15

• Slicer will output selected Data Branches, which were Data Paths in previous version.

Update: 2018.1.4

• Add ‘Normal vector displaying’ for ‘Perforated panel’ and ‘Fan panel’
• Add the icon of ‘FD_Extrusion’
• Fix the bugs in ‘FD_Extrusion’

Update: 2017.8.24

• The ‘Normal vector’ bug in FD_Extrusion has been fixed.

Update: 2017.7.6

• Outlet components updated.

Update: 2017.6.18

• A big bug, outlet components generate inlets, was fixed. The GHA file was renamed into ‘GH2FD’.

Update: 2017.6.11

• A component named FD_Extrusion was added
• Polygonal Meshes can be transported into FD as a whole.
• CN files can be exported for SloverExcuter.

Update: 2017.4.23

• The slicer output the GH_Path of selected elements rather than indices.
• Some components’ names were adjusted.

Manual

Last update: 2017.5.6

• Chapter.0
• Chapter.1

Download Link  https://www.dropbox.com/s/3pjvrn2mvem7f8g/GH2FD_Manual.zip?dl=0

Sample Files (New!!)

Last update: 2017.10.17

Download Link  https://www.dropbox.com/s/pm55b19t4gtkhdp/GH2FD%20Sample%20Files.zip?dl=0&m=

Introduction

Geometries

As Grasshopper3D is an excellent parametric modeling platform, this tool certainly features its geometry abilities. With this tool, you can convert the geometries (polygon & box) into objects in FlowDesigner (inlet, volume source, etc.) and set the properties. The modification you did in Grasshopper3D can be immediately reflected in FlowDesigner. The efficiency of modeling can be several times higher.

This video is a demonstration of the basic process. The number of inlets is controlled by two parameters.

Configurations

Many configurations of FlowDesigner can be set in Grasshopper3D, including analysis range, external wind and analysis mesh division.

CSV Results

This tool can make use of the CSV output functions in FlowDesigner. The results can be visualized in Rhinoceros. A component was designed to pick up the results in a certain section, just like in FlowDesigner.

Automatic Loop

A counter will be triggered when the calculation finishes, which can be used to change the parameters and trigger the simulation. Automatic looping can be realized.

Demonstration of the looping. Each time the simulation finishes, one more box will be added into FlowDesigner and the analysis range will expend. Then the simulation will run again. The loop will run 8 times.