Exercise 1. 'Water
in bathtub' is the stock, measured as a volume of water, in L. The bath is initially empty. The bath receives water from the taps ('Variable inflow from tap', in
L/min) and loses water to the drain ('Constant outflow to drain', in
L/min). 'Twiddling the taps' automatically switches the inflow from 40
L/min to 20 L/min at 5 minute (300 second) intervals. The outflow
remains constant at 30 L/min.
Simple model of a bathtub, Exercise 1
A quick population rate model to help get acquainted to modular designs.
VariableBirthPopulation
This model fills a bathtub, while outflow occurs at a flow determined by the volume of water (or pressure at outlet) of the bathtub. It could just as well be a dam or lake that is modeled.
Filling a bathtub, with outflow...
first attempt at an Insight model
simple population growth model
This is an introductory conceptual model that introduces key concepts in the management of lakes subject to nutrient inputs from human activity.
Simple model of lake dynamics
A quick population rate model to help get acquainted to modular designs.
Clone of Clone of Clone of VariableBirthPopulation
Exercise 2. 'Water
in bathtub' is the stock, measured as a volume of water, in L. The bath initally holds 100 L of water. The bath receives water from the taps ('Variable inflow
from tap', in
L/min) and loses water to the drain ('Constant outflow to drain', in
L/min). 'Twiddling the taps' gradually ramps the inflow between a minumum of 0
L/min and a maximum of 60 L/min within each 5 minute (300 second) intervals. The outflow
remains constant at 30 L/min.
Simple model of a bathtub, Exercise 2
A quick population rate model to help get acquainted to modular designs.
Population Rate
Simple demo of inflow and drain of a resource.
Flow Drain Model, additional steps
This is an introductory model that presents key concepts in the management of lakes subject to nutrient inputs from human activity.
Model of lake dynamics
This model fills a bathtub, while outflow occurs at a flow determined by the volume of water (or pressure at outlet) of the bathtub. It could just as well be a dam or lake that is modeled.
Clone of Filling a bathtub, with outflow...
This model fills a bathtub, while outflow occurs at a flow determined by the volume of water (or pressure at outlet) of the bathtub. It could just as well be a dam or lake that is modeled.
Clone of Filling a bathtub, with outflow...
This model fills a bathtub, while outflow occurs at a flow determined by the volume of water (or pressure at outlet) of the bathtub. It could just as well be a dam or lake that is modeled.
Clone of Filling a bathtub, with outflow...
This model fills a bathtub, while outflow occurs at a flow determined by the volume of water (or pressure at outlet) of the bathtub. It could just as well be a dam or lake that is modeled.
Clone of Clone of Filling a bathtub, with outflow...
A toy model to see what happens to employment when people must move through various states to get to certain jobs
Basic Employment Model
This model fills a bathtub, while outflow occurs at a flow determined by the volume of water (or pressure at outlet) of the bathtub. It could just as well be a dam or lake that is modeled.
Clone of Filling a bathtub, with outflow...
This model fills a bathtub, while outflow occurs at a flow determined by the volume of water (or pressure at outlet) of the bathtub. It could just as well be a dam or lake that is modeled.
Clone of Filling a bathtub, with outflow...
Exercise 2. The bath initially holds 100 L of water. Water flows in through the tap at a variable rate (L/min) and flows out through the drain at a constant rate (30 L/min). Control of the tap is pre-set.
Clone of Simple model of a bathtub, Exercise 2
A quick population rate model to help get acquainted to modular designs.
BirthDeathPopulation
A quick population rate model to help get acquainted to modular designs.
Clone of Clone of VariableBirthPopulation
This model fills a bathtub, while outflow occurs at a flow determined by the volume of water (or pressure at outlet) of the bathtub. It could just as well be a dam or lake that is modeled.
Clone of Filling a bathtub, with outflow...
This model fills a bathtub, while outflow occurs at a flow determined by the volume of water (or pressure at outlet) of the bathtub. It could just as well be a dam or lake that is modeled.
Clone of Filling a bathtub, with outflow...
This model fills a bathtub, while outflow occurs at a flow determined by the volume of water (or pressure at outlet) of the bathtub. It could just as well be a dam or lake that is modeled.
Clone of Clone of Clone of Filling a bathtub, with outflow...
This is an introductory conceptual model that introduces key concepts in the management of lakes subject to nutrient inputs from human activity.
Clone of Simple model of lake dynamics
