MEMS+ Results Visualization forms an important bridge in the communication of simulation results to the MEMS specialist. It is important to visualize and understand this mechanical motion during MEMS design, since MEMS devices are fundamentally mechanical structures. MEMS simulations involve spatial displacements and/or rotations of mechanical structures, which can not be easily inferred from a waveform analysis. These viewers are designed to display electrical circuit results, such as voltage and current changes over time, or frequency on individual wires. Additional time-series can be added to the plot by clicking on the time-series result in the Watershed Explorer and dragging/dropping the time-series onto the plot's x or y axis.Mechanical motion of a MEMS device can be difficult to visualize when looking at design results in a standard EDA waveform viewer. The example shows a way to compare time-series results from two separate simulation runs. The gage weights approach uses user defined gage weights, and the inverse distance method automatically computes the gage weights using the distance from the gage to a user defined node (subbasin centroid). The differences in the computed basin average precipitation is due to the different methods for computing basin average precipitation. Basin average precipitation hyetographs from the Specified Wt (solid line) and Inverse Dist (dashed line) simulation runs are shown simultaneously below.Press Control + Click on the Precipitation result for the Punxsutawney subbasin in the Inverse Dist simulation run.Click on the Precipitation result for the Puxsutwaney subbasin in the Specified Wt simulation run.The summary tables of both simulation runs are shown simultaneously below.Click on the Summary Table of the Inverse Dist simulation run and move the table to the side and under the first table.Click on the Summary Table of the Specified Wt simulation run and move the table to the side.The graphs of both simulation runs are shown simultaneously below.Click on the subbasin (Punxsutawney) Graph from the Inverse Dist simulation run and move the plot to the side and under the first plot.Click on the subbasin (Punxsutawney) Graph from the Specified Wt simulation run and move the plot to the side.Click on the Results tab and expand the results for the Punxsutawney subbasin as shown below.Compute the Specified Wt simulation run.Compute the Inverse Dist simulation run.Click on the Open button and the Rainfall Workshop will be loaded.Choose the Open… menu option and select the Rainfall Workshop item in the list of existing projects. Open HEC-HMS and select the File menu.
Meteorologic Model: Inverse Distance Wt.
The first simulation run uses the Gage Weights precipitation method and the second simulation run uses the Inverse Distance precipitation method. Components of both simulation runs are shown below. Both simulation runs use the same basin model and control specifications. In this tutorial, you will compute two simulation runs and compare results from the two meteorologic models.
HEC-HMS version 4.8 was used to update the project files provided here - Rainfall_Workshop.zip.