Search found 3 matches
- Thu Mar 05, 2020 7:04 am
- Forum: Vensim
- Topic: Requesting help to develop a SD model
- Replies: 0
- Views: 3455
Requesting help to develop a SD model
Hi, I need to draw a Stock-flow diagram to see the effect of used materials on different types of cost. I compare the used material cost with the new material cost. I assume the demand for aggregates increases yearly, but supply for aggregates reduces over the time regularly after a certain period (...
- Fri Feb 28, 2020 2:53 am
- Forum: Vensim
- Topic: Defining a variable
- Replies: 2
- Views: 1647
Defining a variable
Hi, I need to define a variable (the use rate). I assumed the use rate slowly increases to a peak and then gradually decreases. How can I define this type of variable in a stock-flow diagram?
Please help me
Please help me
- Mon Feb 24, 2020 4:44 am
- Forum: System Dynamics Discussion
- Topic: Looking for a help for stock-flow diagram
- Replies: 1
- Views: 8482
Looking for a help for stock-flow diagram
Hi.. I am using Vensim to draw a simple stock-flow diagram. The purpose of the model is to measure the effect of changes in one decision variable on the total cost over 20 years. I am not sure about the model I created. Is there any way to get feedback for the developed models? My mind is always arg...