Featured Articles

• Comparing Time Varying Data in GoldSim and Spreadsheets: I want to compare GoldSim model results to results of similar calculations done in a spreadsheet.
• Looking for examples of the Script element that was introduced in GoldSim 10.5? Look at Muskingum Channel Routing and Pumped Flow with Pump Curve. Learn how to use it by joining us in a Webinar. Post questions in the Forum to discuss how to take advantages of this new feature.
• GoldSim User Resources: GoldSim provides with a number of resources that can help you learn how to use GoldSim, develop further modeling skills and share knowledge about GoldSim, including this GoldSim Wiki, GoldSim Forum, Model Library, Knowledge Base and other resources. >>Read More
• How to model runoff in GoldSim: Runoff models vary in complexity. The simplest runoff model in GoldSim is a unit hydrograph convolution. In this calculation, a hydrograph response is specified in the form of a lookup table... >>Read More
• Shortcut keys supported in GoldSim: Did you know that GoldSim supports variety of shortcut keys so that you can edit and run the model without touching your mouse? >>Check out the list of all supported shortcut keys here.

>>Look at More Featured Articles

GoldSim Model Library

Featured Models

• Creating a Dashboard-Specified Discrete Distribution:This model illustrates how an arbitrary discrete distribution can be specified by entering values and probabilities in a dashboard. This cannot otherwise be done using a discrete distribution Stochastic Element
• Lake Biogeochemical Food Web Model: This is a nutrients, phytoplankton, and zooplankton model with dissolved oxygen dynamics for a vertically stratified lake system with river inputs.
• Muskingum Channel Routing: This model does Muskingum channel routing, as it is implemented in the Soil Water Assessment Tool model by Texas A& M. It is the simplest form of kinematic wave routing for streamflows.
• Pumped Flow with Pump Curve: This model demonstrates the calculation of flow rate through a pump given a pump operating curve and required head upstream of the pump. To solve this problem through iteration, a Script element is used to do a binary search to converge on the solution of pumped flow.
• Time Varying Water Demand: This model defines water usage patters and apply them to a base demand rate to simulate time-varying demands for a water system.
• Hydropower Revenue Optimization: This model demonstrates the optimization tool in GoldSim using a simple reservoir and hydropower model. The objective function is to maximize net revenues made from hydropower generation by modifying key components of the system.

>>Look at More Models

Icon and Image Library

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GoldSim Knowledge Base

Recently Added Article

• Simple Mixing Chemistry Equilibria: One of most common application of geochemical models is prediction of the effects of mixing solutions of different chemical compositions. This model is an example of how to incorporate PHREEQC geochemical calculations into a GoldSim model through the use of a "Lookup Table" element.
• Comparing Time Varying Data in GoldSim and Spreadsheets: This article first describes the differences between dynamic simulation tools (i.e., GoldSim) and spreadsheets. Following this introduction, it describes some problems people commonly encounter when comparing GoldSim results to spreadsheet results.
• Referencing External Documents in GoldSim: I need to create links in my GoldSim model to documents and webpages. Is there a way to reference several documents?
• Increase the Number of Realizations to Process Per Slave Transaction for DP Run: How can I reduce the simulation run time of a model with large number of realizations in Distributed Processing?

>>Read more Knowledge Base articles

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