
The purpose of this model is to demonstrate time shifting historic data in a Time Series element. This type of model makes it easy to show summary statistics like exceedance probability of annual peak flow rate or mean annual flow rate.

This model simulates a Markov process that randomly switches between a wet state and a dry state to simulate rainfall given some key historic statistics.

This simple model shows one method for allocating competing demands on a Reservoir.

The GoldSim 11.0 implementation of AWBM for calculating runoff from rainfall on a watershed. This model is used for water yield and water management studies.

Calculate future, monthly water demands based on current usage and an annual projection

Simulate the feedback loop between water sales revenues and funding a conservation program.

This model uses a submodel to estimate a possible shortfall for the coming year in order to set a supply curtailment if needed.

This is a GoldSim impleneation of the NRCS WinSRM model for calculating runoff from a snowmelt driven watershed.

Operating rules control outflows from a reservoir that contains operating zones divided into surcharge, flood control, conservation, and dead pool zones.

Use GoldSim's scenarios functionality to create a decision support framework for your next project.

The purpose of this model is to demonstrate the use of GoldSim elements to represent a flow network of multiple storage elements that distribute water for water use. Water enters the system via "Inflow_Data".

Simulate the operation of a simple reservoir with an overflow spillway.

This simple example simulates the flow between and the levels of a twotank system using Bernoulli's theorem.

Check that inflows, outflows, and changes in storage within your flow model balance.

Simple model of calculating production losses through a set of three parallel pumps each with failures and repairs

Water balance model illustrating a negative feedback loop and of the use of scenarios with a dashboard

This model illustrates how several methods for calculating a reservoir discharge can be combined into a single model. The methods includes calculations based on fluid physics, lookup tables and volumetrically under lowlevel conditions.

Simple but realistic water balance model for a mine

Example model providing demonstration of two different priority implementations in an allocator element

Example of integrating equilibrium chemical processes into GoldSim to represent water treatment for acid mine drainage

Reusable model providing a modified Muskingum hydrologic routing formulation

This model explores 3 different methods of controlling discharge from a reservoir. The difference between these methods is important to understand for models that contain multiple reservoirs where discharge from one is being sent to another.

Commonly used Muskingum hydrologic routing is implemented in GoldSim with Reservoir elements

This model demonstrates the use of a Status element to control discharges from a reservoir.

Forecast water demand for multiple entities based on assumed starting conditions and projected rates of change such as population, water prices, and seasonal use adjustments.

Illustration of a simple mass balance calculation for a flow network for an inert constituent.

This model demonstrates a simple continuous stream diversion and and a diversion operating for a fixed amount of time each week.

This model provides simulation of nonpoint source pollutant buildup and washoff with automated calibration.

This model illustrates the simulation of transport and mixing of two contaminants sourced from a spoils heap.

A script element is used to solve for pumping flow as a function of the total dynamic head on the pump due to headloss.

Use the Reliability Module of GoldSim to calculate the failure modes of various components of a pumping station and water delivery system.

Simulates filling, operations, and cleaning of septic impoundments after the material is allowed to dry out followed by final disposal at a landfill.

Exactly the same implementation as the original AWBM except this has added capability to incorporate multiple subcatchments using GoldSim's array label sets.

Simulates the inflow and outflow from a pond that controls discharge using a simple orifice in a riser outlet works

Simulate runoff from multiple subbasins in a watershed using AWBM in GoldSim