The purpose of this model is to simulate the operations of a dam using multiple operating pools. Releases are made from the reservoir as the water level rises and falls into and out of each of the 4 pools defined: Inactive, Conservation, Flood, and Spillway. Water is released to provide water supply for a seasonal irrigation demand through an outlet works that is limited by hydraulic constraints and timing of the demands. In addition, the water level in the reservoir must be within the "Conservation" pool in order to deliver water to the irrigation demand. As the water level rises into the "Flood" pool, then extra flood releases are made through this same outlet facility. If the outlet facility is not able to provide enough capacity to maintain a safe water level below the spillway, then the water will rise above the spillway crest and begin to spill over the uncontrolled spillway. The input parameters of this model can be entered and also results viewed through a dashboard.
whre i can GetThis Program?
You get the software from our website and the model itself can be downloaded by clicking on the link at the bottom of the article.
Dear Mr. Jason,
Thank you for your nice work, I have downloaded the model it's great. I need a metric version of this model, if you can provide me, appreciate you.
Thanks for your feedback. I don't currently have a metric version but it would be pretty easy to convert. If you have GoldSim, you can simply open the model and temporarily unlink the dashboard controls. Below is a screen capture showing how the link is removed. Just double-click on the dashboard control then click the "X".
Once this is done, please just go to the element and change the unit to metric.
You will also want to change the units displayed in results but this is really easy. Just go to the Result properties page and change the unit:
GoldSim will take care of the rest for you! You won't have to change any of the equations except for Weir_Flow and Discharge_Capacity, which both rely on a empirical equations. These are simple textbook formulas for broad-crested weir flow and the energy equation. Please let me know if you have any questions when you start making changes.
Thank you, Dear Jason,
I am not able to make changes to this model, if you can convert the units to metric this model will be useful for all the users, appreciate you. and also in the model the demands for the hydropower generation is not included or how can add this?
I updated the model to be metric. Please have another look and let me know what you think.
Dear Mr. Jason,
Many thanks for your prompt consideration, I have downloaded the mode and it's great and improved. I only have the final question, how can I consider the water demand for power generation? and also the elevation area table and delivery throttle is not considered in the current model. Once again thank you.
I added the button to edit the elevation-area table as shown below. Please download the newer version above. Please note that I also changed the functionality of the water delivery by making it an on/off switch instead of throttling a valve slowly as the target is approached. This works the same way a thermostat controls a furnace in your house. You can read more about this concept here: https://support.goldsim.com/hc/en-us/articles/115012527547-Reservoir-Discharge-Controlled-by-Status
In regards to simulating power demand for hydroelectricity generation, I recommend looking into a different example like this one: https://support.goldsim.com/hc/en-us/articles/115012825368-Hydroelectric-Power-Revenue-Optimization or perhaps this: https://support.goldsim.com/hc/en-us/articles/360017861873-Run-of-River-Hydroelectric-Power-Generation
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