Simulation

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A simulation is an approximate imitation of the operation of a process or system; the act of simulating first requires a model is developed.wikipedia
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Scientific modelling

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Simulation is also used with scientific modelling of natural systems or human systems to gain insight into their functioning, as in economics.
Scientific modelling is a scientific activity, the aim of which is to make a particular part or feature of the world easier to understand, define, quantify, visualize, or simulate by referencing it to existing and usually commonly accepted knowledge.

Dynamical simulation

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Physical simulation refers to simulation in which physical objects are substituted for the real thing (some circles use the term for computer simulations modelling selected laws of physics, but this article does not).
Dynamical simulation, in computational physics, is the simulation of systems of objects that are free to move, usually in three dimensions according to Newton's laws of dynamics, or approximations thereof.

Maritime simulator

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Interactive simulation is a special kind of physical simulation, often referred to as a human in the loop simulation, in which physical simulations include human operators, such as in a flight simulator, sailing simulator, or a driving simulator.
A maritime simulator or ship simulator is a system that simulates ships and maritime environments for training, research and other purposes.

Discrete event simulation

discrete eventdiscrete-eventDiscrete Event Simulation; DES Software
Discrete Event Simulation is a simulation where time evolves along events that represent critical moments, while the values of the variables are not relevant between two of them or result trivial to be computed in case of necessity
Between consecutive events, no change in the system is assumed to occur; thus the simulation can directly jump in time from one event to the next.

Network traffic simulation

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A good example of the usefulness of using computers to simulate can be found in the field of network traffic simulation.
Simulation is an approach which can be used to model large, complex stochastic systems for forecasting or performance measurement purposes.

Instructional simulation

There is a distinction, though, between simulations used for training and Instructional simulation.
An instructional simulation, also called an educational simulation, is a simulation of some type of reality (system or environment) but which also includes instructional elements that help a learner explore, navigate or obtain more information about that system or environment that cannot generally be acquired from mere experimentation.

Monte Carlo method

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Stochastic Simulation is a simulation where some variable or process is regulated by stochastic factors and estimated based on Monte Carlo techniques using pseudo-random numbers, so replicated runs from same boundary conditions are expected to produce different results within a specific confidence band Several software packages exist for running computer-based simulation modeling (e.g. Monte Carlo simulation, stochastic modeling, multimethod modeling) that makes all the modeling almost effortless.
Monte Carlo methods were central to the simulations required for the Manhattan Project, though severely limited by the computational tools at the time.

Symbolic simulation

Symbolic simulation uses variables to stand for unknown values.
In computer science, a simulation is a computation of the execution of some appropriately modelled state-transition system.

Training simulation

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Training simulations typically come in one of three categories:
The word simulation implies an imitation of a real-life process, usually via a computer or other technological device, in order to provide a lifelike experience.

Virtuix Omni

Omni
Omnidirectional treadmills such as the Wizdish RoVR, Virtuix Omni & Cyberith Virtualizer can be used to capture the users locomotion as they walk or run.
The Virtuix Omni is an omnidirectional treadmill simulator for virtual reality games and other applications.

Training

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Simulation is used in many contexts, such as simulation of technology for performance optimization, safety engineering, testing, training, education, and video games.
Simulation based training is another method which uses technology to assist in trainee development.

Computer science

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In computer science, simulation has some specialized meanings: Alan Turing used the term "simulation" to refer to what happens when a universal machine executes a state transition table (in modern terminology, a computer runs a program) that describes the state transitions, inputs and outputs of a subject discrete-state machine.
Simulation of various processes, including computational fluid dynamics, physical, electrical, and electronic systems and circuits, as well as societies and social situations (notably war games) along with their habitats, among many others. Modern computers enable optimization of such designs as complete aircraft. Notable in electrical and electronic circuit design are SPICE, as well as software for physical realization of new (or modified) designs. The latter includes essential design software for integrated circuits.

Physics

physicistphysicalphysicists
Physical simulation refers to simulation in which physical objects are substituted for the real thing (some circles use the term for computer simulations modelling selected laws of physics, but this article does not). Computer simulation has become a useful part of modeling many natural systems in physics, chemistry and biology, and human systems in economics and social science (e.g., computational sociology) as well as in engineering to gain insight into the operation of those systems.
From those results, precise or estimated solutions are obtained, quantitative results from which new predictions can be made and experimentally confirmed or negated.

Emulator

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In computer architecture, a type of simulator, typically called an emulator, is often used to execute a program that has to run on some inconvenient type of computer (for example, a newly designed computer that has not yet been built or an obsolete computer that is no longer available), or in a tightly controlled testing environment (see Computer architecture simulator and Platform virtualization).
Developers of software for embedded systems or video game consoles often design their software on especially accurate emulators called simulators before trying it on the real hardware.

Stochastic

stochastic musicstochasticsstochasticity
Several software packages exist for running computer-based simulation modeling (e.g. Monte Carlo simulation, stochastic modeling, multimethod modeling) that makes all the modeling almost effortless.
Monte Carlo methods were central to the simulations required for the Manhattan Project, though were severely limited by the computational tools at the time.

Serious game

serious gamesSerious Game Developmentserious" game
Simulation in entertainment encompasses many large and popular industries such as film, television, video games (including serious games) and rides in theme parks.
The idea shares aspects with simulation generally, including flight simulation and medical simulation, but explicitly emphasizes the added pedagogical value of fun and competition.

Haptic technology

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Haptic display: These displays provide a sense of touch to the user (haptic technology).
Haptic simulators are used in medical simulators and flight simulators for pilot training.

Cybernetics

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Historically, simulations used in different fields developed largely independently, but 20th-century studies of systems theory and cybernetics combined with spreading use of computers across all those fields have led to some unification and a more systematic view of the concept.
Simulation

Engineering

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Computer simulation has become a useful part of modeling many natural systems in physics, chemistry and biology, and human systems in economics and social science (e.g., computational sociology) as well as in engineering to gain insight into the operation of those systems.
They use, among other things: prototypes, scale models, simulations, destructive tests, nondestructive tests, and stress tests.

Global Challenge Award

As another example, the Global Challenge Award online STEM learning web site uses microworld simulations to teach science concepts related to global warming and the future of energy.
The program is an online educational environment that uses game based learning, simulation and Web-based science resources in a global competition.

AnyLogic

AnyLogic Cloud
AnyLogic is an example of modern, large-scale urban simulators designed for use by urban planners.
AnyLogic is a multimethod simulation modeling tool developed by The AnyLogic Company (former XJ Technologies).

Simulation in manufacturing systems

Another important goal of Simulation in Manufacturing Systems is to quantify system performance.
Simulation can be used to predict the performance of an existing or planned system and to compare alternative solutions for a particular design problem.

Microcode

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For example, simulators have been used to debug a microprogram or sometimes commercial application programs, before the program is downloaded to the target machine.
A simulator program is intended to execute the bits in the same way as the electronics, and allows much more freedom to debug the microprogram.

UrbanSim

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UrbanSim and LEAM are examples of large-scale urban simulation models that are used by metropolitan planning agencies and military bases for land use and transportation planning.
UrbanSim is an open source urban simulation system designed by Paul Waddell of the University of California, Berkeley and developed with numerous collaborators to support metropolitan land use, transportation, and environmental planning.

Lifelike experience

In such situations they will spend time learning valuable lessons in a "safe" virtual environment yet living a lifelike experience (or at least it is the goal).
Simulation