# Bathtub Models

These models and simulations have been tagged “Bathtub”.

Use a bathtub model to investigate the manner in which inflows and outflows govern the quantity of a stock. Extend the structure to create and investigate the relationships of a goal seeking balancing loop.

First challenge in learning system dynamics.

Use a bathtub model to investigate the manner in which inflows and outflows govern the quantity of a stock. Extend the structure to create and investigate the relationships of a goal seeking balancing loop.

Use a bathtub model to investigate the manner in which inflows and outflows govern the quantity of a stock. Extend the structure to create and investigate the relathionships of a goal seeking balancing loop.

Explore a more operational way to model the shutting down of the faucet.  I think there are some problems in the way this model is developed and explained in the "Units" video.

Use a bathtub model to investigate the manner in which inflows and outflows govern the quantity of a stock. Extend the structure to create and investigate the relathionships of a goal seeking balancing loop.

Use a bathtub model to investigate the manner in which inflows and outflows govern the quantity of a stock. Extend the structure to create and investigate the relationships of a goal seeking balancing loop.

Bathtub SFD

Simple bathtub model after Sterman 2002

Illustration of stock response to varying inflow and constant outflow

Use a bathtub model to investigate the manner in which inflows and outflows govern the quantity of a stock. Extend the structure to create and investigate the relathionships of a goal seeking balancing loop.

Use a bathtub model to investigate the manner in which inflows and outflows govern the quantity of a stock. Extend the structure to create and investigate the relathionships of a goal seeking balancing loop.

Use a bathtub model to investigate the manner in which inflows and outflows govern the quantity of a stock. Extend the structure to create and investigate the relathionships of a goal seeking balancing loop.

Simple bucket model using converters for the inflows and outflows
Example Bathtub Model

Simple bathtub model after Sterman 2002

Illustration of stock response to varying inflow and constant outflow

This model simulates water level in a bathtub.
for training
Example Bathtub Model

Bathtub SFD

Bathtub SFD

A bathtub model to investigate the manner in which inflows and outflows govern the quantity of a stock. Used to create and investigate the relationships of a goal seeking balancing loop.