Simulating spaces with vertically adjustable shades
Section 6.3.4 of Chapter 6 describes a Three-Phase Method simulation involving vertically adjustable shades. The core idea behind such a simulation is that the glazing aperture should be split into individual window groups that relate to the different height settings of the shading system.
Performing an F-Matrix simulation of with multiple window groups requires that the F-matrices be defined separately for each window group. As shown in Figure 74, individual F-Matrices will be created by assigning the fractional glazing aperture and F aperture as sending and receiving surfaces respectively. Aside from the steps required for generating the F-matrices the procedure for simulating vertically adjustable shading systems is the same for the Three-Phase Method and the F-Matrix Method. For example, the process for combining results from individual images shown in Figure 75 for the F-Matrix Method is same as that followed for the Three-Phase Method in Figure 42.
Figure 76 provides a side-by-side comparison between the results generated for the Three-Phase Method and F-Matrix Method for scenario with venetian blinds. The full set of commands for this F-Matrix simulation is provided in Section E.5 of Appendix E.
Figure 74. Sending and receiving surfaces for creating F matrices with rfluxmtx for a simulation involving multiple shading heights. As indicated by a single aperture surface, the images above pertain to the F1 approach. This image should be viewed in color.
Figure 75. The results from individual simulations for different window groups are combined to produce the final result. The images above, generated for the F1-type F-matrix simulation, are similar to the ones shown in Figure 42 for the Three-Phase simulation.
Figure 76. A comparison of an F-Matrix and Three-Phase Method simulation involving adjustable blinds. The blinds are retracted to 25% of the total height of the glazing aperture. The F-Matrix simulation also involves an overhang in the form of grates.