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Basic model of Newton's mechanics applied to fall with air friction (e.g. a paper cone)
Fall of a paper cone in air
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Perceptual Control Theory Model of Balancing an Inverted Pendulum. See Kennaway's slides on Robotics. as well as PCT example WIP notes. Compare with IM-1831 from Z209 from Hartmut Bossel's System Zoo 1 p112-118

Balancing an Inverted Pendulum PCT Model
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Electron in a one-dimensional square well potential

W1=-9.70751 eV W2=-8.83403 eV  W3=-7.393 eV
Electron in square well
last month
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Rocket Modeling Project-Ariana
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Spring-Mass model used in IACS physics class
Royston Spring Mass Model
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Um corpo é atirado verticalmente para cima, a partir do solo, com uma velocidade de 20 m/s. Considerando a aceleração gravitacional 9,8 m/s² e desprezando a resistência do ar, a altura máxima, em metros, alcançada pelo corpo é? 

Fonte: (RAMALHO, NICOLAU E TOLEDO; Fundamentos da Física, Volume 1, 8ª edição, pp. 12 – 169, 2003).

Clique aqui para ver uma descrição do que é Movimento Vertical no Vácuo.

Lançamento Vertical no Vácuo
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Just a basic example of heat flow between two reservoirs at 100 degrees and 0 degrees.
Simple Heat Flow between two idential layers
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Spring-Mass model used in IACS physics class
Clone of Spring-Mass Model
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Grant McEnaney Rocket Model 2015
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Model with friction force only, e.g. white bus (toy car), related to the "Introduction to STELLA", NSUK 2017
Motion with friction force only
12 months ago
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How gravity and air drag interact to create terminal velocity.
Terminal velocity
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Cette simulation est une version optimisée de l'eaurdinateur, dans laquelle on a utilisé l'influence d'un flux sur un autre pour économiser les réservoirs utilisés pour diviser par deux les flux de sortie des portes AND.

Nous n'avons malheureusement pas réussi à changer la couleur de l'état en fonction de sa valeur. Celle-ci peut être changée dans le panneau de configuration, afin de tester des valeurs différentes.

On notera que pour obtenir un résultat correct, deux conditions sont nécessaires:
1°) Il faut attendre que les flux dans les portes se stabilisent, ce qui prend pas moins de 10 secondes (et qui reflète le délai de latence inhérent à tout circuit, qui correspond environ au nombre maximum de portes logiques traversées entre l'entrée et la sortie du circuit.
2°) Il faut utiliser la méthode de simulation basée sur une approximation de Runge-Kutta, sous peine de voir apparaître des oscillations parasites dans certaines portes qui rendent le résultat instable.


L'eaurdinateur (version optimisée)
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Basic model for motion with several forces, related to the "Introduction to STELLA", NSUK 2017
Nucleus for motion with forces
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Após uma enchente, um grupo de pessoas ficou ilhado numa região. Um avião de salvamento, voando horizontalmente a uma altura de 720 m e mantendo uma velocidade de v = 50m/s, aproxima-se do local para que um pacote com medicamentos e alimentos seja lançado para as pessoas isoladas. A que distância, na direção horizontal, o pacote deve ser abandonado para que caia junto às pessoas? Despreze a resistência do ar e adote um g = 10m/s².

Fonte: (RAMALHO, NICOLAU E TOLEDO;Fundamentos da Física, Volume 1, 8ª edição, pp. 12 – 169, 2003).

Clique aqui para ver uma descrição do que é Lançamento Horizontal no vácuo.

Lançamento Horizontal no vácuo
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Rocket Wind Resistance Model
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Z207 from Hartmut Bossel System Zoo 1 p103-107


After running the default settings Bossel describes A=0.2, B=0.2, Initial Values X=0 Y=2 and Z=0 and varying C=2,3,4,5 shows period doubling and transition to chaotic behavior
Rossler Chaotic Attractor
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Clone of Ariana Rocket Modeling
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Fall with weight force, air friction force (e.g. an air balloon) and buoyancy force of the balloon in air
Fall of balloon in air with buoyancy force
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Clone of Clone of Pendulum
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​S-Curve + Delay for Bell Curve Showing Erlang Distribution

Generation of Bell Curve from Initial Market through Delay in Pickup of Customers

This provides the beginning of an Erlang distribution model

The Erlang distribution is a two parameter family of continuous probability distributions with support . The two parameters are:

  • a positive integer 'shape' 
  • a positive real 'rate' ; sometimes the scale , the inverse of the rate is used.

Clone of S-Curve + Delay for Bell Curve by Guy Lakeman
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Clone of Nik Vieira's Rocket Model
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​S-Curve + Delay for Bell Curve Showing Erlang Distribution

Generation of Bell Curve from Initial Market through Delay in Pickup of Customers

This provides the beginning of an Erlang distribution model

The Erlang distribution is a two parameter family of continuous probability distributions with support . The two parameters are:

  • a positive integer 'shape' 
  • a positive real 'rate' ; sometimes the scale , the inverse of the rate is used.

Clone of S-Curve + Delay for Bell Curve by Guy Lakeman
Insight diagram

Um veículo parte do repouso em movimento retilíneo e acelera com aceleração escalar constante e igual a 2,0 m/s2. Pode-se dizer que sua velocidade escalar e a distância percorrida após 3,0 segundos, valem, respectivamente:

Fonte: FUVEST -2004

Clique aqui para ver uma descrição do que é Movimento Uniformemente Variado

Clone of Movimento Uniformemente Variado
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NOT YET FUNCTIONAL

This is a simple energy balance model of radiation through the atmosphere. It's a simple single layer model.

Version 2 of Greenhouse Effect in the Atmsophere