Several important parameters are explained here. For example, you can set a rule on your own that 1m length corresponds to 800 pixels in the paint images.
However, it is a good habit to use more or less similar aspect ratio between images and domain dimensions. The paint image pixel sizes can be irrelevant to actual physical domain dimensions. Each of these parts is constructed using the rule of "(a) Model with a uniform 2D cross-section". In this simulation, we will specify (1) wind tunnel walls with preset BLACK color, (2) an inflow boundary condition with preset BLUE color, and (3) the airfoil with NON-preset color. General rule of constructing 3D boundary conditions is explained in here. The arrow denotes the direction of the mean flow. Schematic of the Flowsquare+ wind tunnel. You do not need to use any preset boundary configuration for this case (as all input files are prepared for you), but using it could reduce paint images you need to prepare. Walls are situated on four sides, and there is an inflow boundary on the left and an outflow boundary on the right along the X-direction. Our virtual wind tunnel looks something like below images. Input filesĪ typical computational time of this case is approximately 3 minutes per 1000 time steps with a typical Core i7 PC with the maximum parallelism setting (parallel in parameter setting).
PC AIRFOILS HOW TO
This tutorial explains how to set up an airfoil in your wind tunnel to visualize flows and calculate various hydrodynamic forces (lift, drag, etc.).Īll the required input files for this test case can be downloaded below.
Using Flowsquare+, you can computationally perform wind tunnel experiments on your PC. Flowsquare+ Wind Tunnel A virtual wind tunnel you can experiment on your PC 1.
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