WELCOMETO

OUR PRESENTATION

INTRODUCING MY GROUP MEMBERS

Md. Ilias Bappi

ID: 131-15-2266

Ferdous Ahamad

ID:131-15-2408

Md.Kawsar Hamid

ID:131-15-2223

Md. Jahirul Shahed

ID: 131-15-2479

Saiful Islam

ID:131-15-2516

OUR PRESENTATIONTOPIC’S

SIMULATION, MODELING,

IT’S APPLICATION,

ADVANTAGE

&

DISADVANTAGE

DEFINITION OF SIMULATION

• Simulation is the execution of a model that is represented by

a computer program that given information about the system

being investigation.

• Simulation is the set of assumption.

HISTORICAL BACKGROUND OF SIMULATION

• In October 1961 IBM presented the "Gordon simulator" to norden SDC (systems design

company). In December 1961 Geoffrey gorden presented his paper at the fall joint computer

conference on a general purpose systems simulator (GPSS)

• In 1969 third conference on the application of simulation was held in December in los angeles.

Two common fears of simulation in early 80s were :

• Simulation is extremely complicated, so only experts can use it.

• Simulation takes forever because of programming and debugging.

• Computer simulation developed hand-in-hand with the rapid growth of the computer.

GROWTH RATE OF SIMULATION APP

EXAMPLE

Circuit Designing

Real world system

Computer Model

• EWB

• Proteus

• MULTISIM

Experiments Output

PROCESS OF SIMULATING A SYSTEM

System

Definition

Model

Formulation

Input Data

Collection

Model

Translation

Verification

Experimentation Documentation

APPLICATIONS

Architecture

Weather

Forecasting

AeronauticsDesigning

Military

FERDOUS AHMED 131-15-2408

Applications on drug development

Slide 11

EXAMPLES OF APPLICATION

• Models of an intel 8086 CPU and DSP processors (voip).

• Simple digital systems (vending machine, alarm clock, plant controller, robot path finder). Interpreter of VHDL and nvhdl

• Simple military systems: radar, unmanned vehicles, cc-130 loads monitoring system, static target seeker, mine seeker.

• Computer communication: routing protocols for lans, ip6, client/server models, simple protocols.

• Physical: excitable media, particle collision, flow injection.

• Geographical/ecological : fire spread, plant growth, watershed formation, erosion, ant foraging.

• Biosystems: mythocondria, heart tissue, bacteria spread.

APPLICATIONSDesigning and analyzing manufacturing systemsEvaluating H/W and S/W requirements for a computer systemEvaluating a new military weapons system or tacticsDetermining ordering policies for an inventory systemDesigning communications systems and message protocols for them

Designing and operating transportation facilities such as freeways, airports, subways, or ports

Evaluating designs for service organizations such as hospitals, post offices, or fast-food restaurants

Analyzing financial or economic systems

Manufacturing facility

Bank operation

Airport operations (passengers, security, planes, crews, baggage

Transportation/logistics/distribution operation

Hospital facilities (emergency room, operating room, admissions)

Computer network

Business process (insurance office)

Criminal justice system

Emergency-response system

Slide 13

a-1 simulated computer

Slide 14

PHYSICAL SYSTEMS

Heat Spread Surface Tension

Binary solidification

Slide 15

FIRE SPREAD MODELING

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

t (ti, Ta)

active

Tf = 333 K Tig = 573 K

T (K)

unburned burned burning

Slide 16

Initial After 1.5 hr After 4 hrs

Temperature

Bacteria concentration

Vibrio Parahaemolyticus bacteria

Slide 17

Sources of food

Ants seeking food

Ants returning to nest

Ants found pheromone path

Ants following pheromone paths

t=1 t=2 t=3 t=4

WEATHER FORECASTING

18

• Computer simulation of weather forecasting can be used to predict storms

• The wind, rain pattern and temperatures e.T.C for the whole planet are simulated

using very powerful computers.

SIMULATION OF A STORM

A 48 hours simulation of storm by weather and research model.

19

SIMULATION OF SHIP DESIGN

20

ARCHITECTURE

21

• Design stability of buildings are checked by simulation of earth quake through

simulation software

• Bridges are also simulated to check how much load they can resist, and what

improvement can be made

Application of Computer Simulation

SIMULATION OF CAR CRASH TO STUDY SAFER DESIGN

22

EARTH QUAKE SIMULATION TO CHECK BUILDING STABILITY

23

BRIDGE SIMULATION

24

AERONAUTICS

25

• Trainee pilots have many hours of lesson in flight simulators before being

allowed to fly an airplanes.

• These simulators provide realistic flying situation like storms, engine failure…

• This experience help them to tackle such situation in real, as they have gained a

bit experience.

Application of Computer Simulation

FLIGHT SIMULATION SOFTWARE

26

CREATING THE VIRTUAL WORLD

•Game engine--a software system within which games can be

created

•Following functionality provided by tools of a game engine:

• A rendering engine for graphics

• A physics engine to provide a collision detection

system and dynamics simulation

• A sound-generating component

27

Slide 28

A WATERSHED MODEL

Surface vegetation

Rain

Water

l(t)

Effective water

le(t)

Acumulated water

Ac(t)

Excedent water

flowing

to neighbor

lands

lvs(t)

Land absortion

water

f(t)

Water received

by

from the

neighbors

lve( t)

WSHED - Topology - Time 0 95-100

90-95

85-90

80-85

75-80

70-75

65-70

60-65

55-60

50-55

45-50

40-45

35-40

30-35

25-30

20-25

WSHED - Quantum Hys 1.0 - After 10' 95-100

90-95

85-90

80-85

75-80

70-75

65-70

60-65

55-60

50-55

45-50

40-45

35-40

30-35

25-30

20-25

Slide 29

DEFINING A CITY SECTION IN MAPS

Slide 30

VISUALIZING OUTPUTS

Slide 31

INTERNETWORKING ROUTING

• 3D CELL-DEVS MODEL

• PLANE 1: WIRELESS NETWORK, PLANE 2: WIRED.

OPERATION PROCEDURES

• New polices, operating procedures, decision rules,

information flows, organizational procedures, and so on can

be explored without disrupting ongoing operations of the real

system.

HARDWARE DESIGNS

• New hardware designs, physical

layouts, transportation systems,

and so on, can be tested without

committing resources for their

acquisition.

ADVANTAGES OF SIMULATION

INTERNAL TEST

• Insight can be obtained about the interaction of variables.

• Can be used to study complex systems that would

otherwise be difficult to investigate.

ADVANTAGES OF SIMULATION

INVESTIGATING

Can be used to compress a time frame, a simulation model run

on a computer system can be used to investigate quickly the

effects of a change in a real life situation that take place over

several years.

Can be used in engineering and product design to investigate

the effect of changes without producing a physical prototype.

ADVANTAGES OF SIMULATION

MAIN DISADVANTAGES OF SIMULATION

EXPENSIVE TO BUILD A SIMULATION MODEL.

EXPENSIVE TO CONDUCT SIMULATION.

SOMETIMES IT IS DIFFICULT TO INTERPRET THE SIMULATION

RESULTS.

MODEL

•What is model?

Model is the representation of a system .A

model is the body of an information system.

MODEL TYPES

Two type of model:

1. Mathematical model

2. Physical model.

Mathematical model: mathematical model uses

mathematical notation and mathematical equation.

Static and dynamic model

Static: Monte carlo represents a

system snapshort at a particular

point in time.

Dynamic: represents systems as they

change over time.

PHYSICAL MODEL

Physical model: Physical model represented by a

system measurement.

Example:

V=IR

THANK YOU