What's New in Ver. 2.1
Support for ArcGIS 10.7.x
Airflow Analyst now works with the latest ArcGIS Desktop 10.7 or 10.7.1.
New Grid Creation Mode
New methods for setting the calculation grid spacing has been added, and which enables us more flexible and efficient grid spacing.
a) Added Horizontal Grid Spacing Specification Method
In the previous grid setting, the grid of the calculation area was set by specifying the grid interval, number, and stretch ratio. In the new version, a new method has been added to specify the horizontal grid spacing by polygon features and their attributes. In this method, the required number of grids changes depending on the wind direction. Therefore, there is an option to dynamically change the required number of grids by specifying the size of the calculation area.
Arbitrary Spacing of Vertical Grid
The conventional vertical grid spacing was set so that the area near the ground surface was the finest and gradually increased toward the sky. A setting function has been newly added that allows you to specify the grid spacing arbitrarily in the vertical direction. This makes it possible to place a detailed grid at the height where you want to resolve flow phenomena, such as on the roof of a building.
Improved Grid Generation from Complex Shapes （Beta）
Previously, simulations using complex shapes required a completely solid model. Improvements have been made so that objects inside and outside can be judged even if there is an unnecessary surface inside the shape. This makes it possible to generate simulation grids from complex building data in Revit file. (ArcGIS Pro can convert Revit files to Shape file.) This reduces the effort to regenerate solid data for simulation from architectural design 3D data.
Numerical Specification Function of Inflow Wind Speed Profile
Previously, it was possible to set a profile using a power law or weather model prediction result file. This time, a profile setting function by specifying an arbitrary numerical value has been added. This makes it possible to simulate under the same inflow conditions as wind tunnel experiments and specific criteria.
Export of Grid Data (Mask Shape) to STL Format
The object shape (mask data) in the calculation grid can be output to STL format. STL is the de facto standard format for exchanging data of 3D models. It can be used to transfer shape data to other CG software and CFD software, and to output 3D models from 3D printers.
Roughness Blocks Generation
A roughness block for generating inflow turbulence can be placed on the windward side with parameter settings. It is no longer necessary to create an object shape as a polygon layer for each wind direction to create a roughness block.
KML Export of Visualization Result
Some visualization results such as shading trajectory can be exported to KML format. Using KML files, analysis results can be displayed and shared with 3D applications such as Google Earth.
Visualization of Oblique Section
Oblique cross sections can be expressed in shading, isolines, and vector visualization methods.
Improve Processing Speed
As a result of the multi-core CPU support, the process of converting calculation results to netCDF has been sped up.