Simulation Definition and 899 Threads

I'm working on a simulation for ballistics, and I am in dire need of some help with elasticity. It is primarily to be used in bullet penetration. Given the impact velocity (v := m/s), impact energy (E := J), and cross-sectional area (A := m^{2}) of a bullet, and the strength(s) of the material...

[SOLVED] RK4 in solar system simulation (n-body problem) Hi, I'm making a simulation of the solar system and have so far been using euler's method to integrate my equations of motion - and i'd like to upgrade to a 4th order runge-kutta method. I'm having a lot of trouble understanding the...

Had a question about simulation :)

Hi, I'm making a car simulation game not just a simple one, one that closely matches the kinds of Gran Turismo, therefore, it has to be extremely precise and realistic and use real life physics. I have been searching around for information regarding this subject and was able to get some...

Anyone know some decent free software for simulating microwaves in full detail? Ideally I'd like to input autocad drawings to it, of metallic structures, and see the power distribution in 3D.

Hey all, I'm looking for some suggestions on topics concerning Molecular Simulation which I can research. I've been tasked with giving a talk and writing a report on one specific topic of this field but I'm unsure what to specialise in. Any and all advise and suggestions would be appreciated!

Similar to Interactive Physics 2005 but "better". I never said I would purchase/download an unlicensed copy so mods there is no need to delete this topic.

hi, srr if this isn't the wright place to post this... I'm working on engine (i'm a programer , c++) and I'm stuck at bouncing... I have an object (repressented by a sphere) at an unknow hight, with an unknow mass and I drop it, so gravity does it job and it starts to fall down now...

Hi! Does anybody here have experience with the FEMM simulation software? Its pretty popular in the engg community. I basically use it for simulating magnetostatic problems. If you do (and if this is the right forum, it is EE after all), could somebody tell me how I can do transient...

Let \bold{X} be a discrete random variable whose set of possible values is \bold{x}_j, \ j \geq 1 . Let the probability mass function of \bold{X} be given by P \{\bold{X} = \bold{x}_j \}, \ j \geq 1 , and suppose we are interested in calculating \theta = E[h(\bold{X})] =...

Caveat 1: I'm not sure if this message should be posted here, or in the Programming forum. Caveat 2: I have a BS in Physics, obtained more than a decade ago, but never actually worked in the field. So I'm a bit rusty. :redface: OK, more than a bit. I am writing a program to simulate the...

Hey everyone, I'm knocking my head against something and for some reason I can't get it to work out -- I'm running an N-body simulation which uses an internal gravitational constant of 1, meaning that the timestep used is a function of the units of mass, length, and velocity. But I don't know...

Let's assume we live in a simulation, but for whatever reason the physics of it are not modeled perfectly. Perhaps the computing power is insufficient to reproduce everything with 100% accuracy. Let's say that as you look at smaller and smaller things, the simulation begins to give...

List here all the free physics simulation programs. I am trying to find particle physics simulation programs, plasma and fusion physics simulation programs and magnetic and electric field simulation programs. What program should I use to simulate...

As in, alternatives to programs such as AutoCAD, Solidworks, etc.

Incompressible Fluid simulation - SPH doesn't work :( Hello all, I've been stuck in my project: Fluid Simulation using Smoothed Particle Hydrodynamics for a few days now. I do understand the core principle that fluid properties are calculated by integration on kernel W with range h. But...

Hi every body I really need to learn about panel methods in aerodynamics Can anyone help me on this ? Some guides and especially a simple code about this method can be very helpful for me I appreciate your time and consideration my E-mail is casy_sms@yahoo.com with regards

im currently looking for ping pong physics simulation in the web for my research.. i can't seem to find any which are useful.. im lookin for those that includes how the collision detection and modeling was handled, prog lang used, and graphics API for rendering(most i see are OpenGL), and the...

I have got this circuit. http://img225.imageshack.us/img225/4369/circuithf1.jpg Threshold voltage of the n-channel MOSFET is 2Volts. RVAR varies from 0.5k\Omega to 2k\Omega. When I simulate the circuit, I get: http://img132.imageshack.us/img132/2779/simulationuw4.jpg It should go into...

This might not be the best place to put this post but still i would like to know about some good softwares which are used to: 1.Simulate the flow in intake manifold. 2.Simulate the engine performance.

Hi, I've got a list of particles (where each particle has it's coordinates in space and velocity) these particles can interact with each-other (f=\frac{a}{r^4}-\frac{b}{r^8}) (i'll add 6 - 12 soon too) anyway, as it is now, the program has a complexity of O(\frac{n(n-1)}{2}) because every...

Simple gradient question.. I have a kernel function that determines the influence of each water droplet given a radius r: (10/pi*h^5)*(h-r)^3 The gradient of that is: (-30/pi*h^5)*(h-r)^2 But 'r' is not a vector, its a scalar, its just the distance to the point in question. So how do...

Hello, As with a lot of people, I have been excited and fascinated by the field equations Einstein described, revealing the curvature of spacetime. I would like to create a computer simulation which simulates the effects of the Einstein Field Equations, in other words, the curvature of...

I've written a couple of small physics simulations in the past (hey, everyone has to have a hobby) and now I'm trying to write something a little more complex so decided to attempt to write an program that simulates the motion of the planets and moons in our solar-system entirely procedurally -...

Hi My name is Pete and this is my first post. I'm a few months away from finishing a degree in mathematics. I'm planning to program a simulation of near light speed travel (not for school, just for personal interest). I'm looking to understand this topic better. I went to a seminar on...

Hi, I'm having a problem while running a simulation of a Bridge Rectifier on PSpice. This is my circuit schematic: http://img521.imageshack.us/img521/276/q1tasks2schematicsxp3.jpg Vs is at 15sin(100*pi*t). And this is the input and output waveforms plotted by PSpice...

http://www.math.columbia.edu/~woit/wordpress/?p=586 Maybe it's well-known that a group in Holland (at the Utrecht Institute for Theoretical Physics) have been running simplicial-model Monte Carlo simulations of the universe. So far they have generated literally millions of different...

hey i was wondering, if there happened to be a North Korean - French conflict that there would be no economic sanctions on both countries that all other countries stay neutral who would have the advantage ? i know France has a small army, but modern 1 aircraft carrier (2 in 2015), nuclear...

Has anyone seen a traffic flow simulator, or used a program similar to this? I would like to simulate the effects of slowing traffic speed limit in a major city, and see what effect it would have on the motorways, maybe the software is all ready in use some where?

I am looking for a free Electron diffraction simulation software/program (Windows-based software). Please let me know where to download! Thanks! :!)

Hello, my colleague has a problem. He has a Monte Carlo simulation written in C. But his program gives different outputs in case he compile it using g++ or icc. He has nothing changed in his source. He is using standard random number generator drand() with initialization srand((unsigned) time...

I need to do a rifle recoil simulation to some weapon sights. I have two of them. One weighs 2.2 lbs and the other 2.6 lbs. I need them to be going 2.2 meters a second when the hit the ground. How high do I have to drop each one?

Of all our learning of the natural world we have come up with many universal constants. How things interact and such. Whos to say we couldn't make a computer program with these laws in a space and let it go. Disregarding the fact that the memory and computation speed of the computer would be...

Hi, It is my first encouter with Pspice program. I want to simulate a RCL circuit to see how it react at different frequencies. I made the circuit and create a netlist. The circuit has no errors( when I look at the output file) but I don't know what to do to produce a curve. please can...

Homework Statement Simple Pendulum using Forces (Computer Simulation) Max theata = PI / 6 Force Of Gravity is { 0, 10 } Force_Tension.x = - 10 * sin(balls.theata); Force_Tension.y = - 10 * cos(balls.theata); Homework Equations accelleration = Force_Tension -...

hi there, i am currently developing a vehilce simulation model using MATLAB simulink. The simulation requires a vehilce to be simulated traveling around a simple race track. the vehilce model itslef has already been created and have all necessary vehicle input data for the simulation. the...

I want to simulate a permanet magnets separator. I need to know the attraction force betwen the magnets and some materials like iron. I don´t know what software i have to use. Thank you for any help.

Hello all, for the past few weeks my friend and me have been working on a project involving simulation of orbital objects interaction. For example, one could see how everything looks if he/she entered all the details about the objects (that is: mass, position and velocity vector). The...

Hi.. I am trying to create a car crash simulation. what i want to do is to simulate two cars crashing and calculate the damage that was induced on both cars with the given speed, mass etc. part 2 of that simulation is an enhancement on car A. I would put beams on the doors of the cars to lessen...

Nuclear Simulation- Beta Decay ?? Hi, I'm a high school sophomore, I'm having trouble finding a suitable trigger for beta decay in my nuclear simulation (for fun) :confused: :cry: :confused: . I have the strong force and electromagnetic forces all set but I've run into the problem of atoms...

I need some help with some statistics stuff. Right now I need it to understand one particular discussion in a poker forum, but I also think that this is a good opportunity for me to learn these things better. That's why I'm posting my questions here instead of in the poker forum. Someone...

I am trying to simulate the performance of a web booking/scheduling system and although there are many features of this problem that intrigue me the one currently giving me fits is demonstrated below. Assume that a dentist has 8 appointments per day and that each appointment time is equally...

[PLAIN]www.sodaplay.com[/URL] www.strandbeest.com Sure u guys saw these .. my question .. is there any software available to simulate stuff like this with the view to make a real, working model? Thanks guys ..

Can anyone help me with some video simulations on vibrations in single degree of freedom system like the one in the link below...

I am using hspice right now and I have to say that it is not the most intuitive thing in the world. What other softwares like spice are out there? Which ones do you guys use for simulating a circuit that you made?

I need some help designing a Digital elevator simulation using multi media logics. I need some help and guidelines as to how I should get the thruth diagrams, kmaps and the circuit going. I am required to design a digital circuit which has applications in elevator style controls. My circuit...

Magnetic Field Simulation Software ? -- Updated I'd like to run some simulations of AC magnetic fields and several ferrite geometries. I can write the simulations myself, but would much prefer to save the time and just use a canned program if it will let me do what I want. Has anybody had...

I'm trying to simulate this ciruit on microsim schematics: http://i75.photobucket.com/albums/i281/esmeco/amplifier.jpg This's what I've got so far: http://i75.photobucket.com/albums/i281/esmeco/Microsimcircuit.jpg What I want to see is the final graph with the values of V0,V1,V2.V1...

Does anyone know of a good reference regarding solving the Tolman-Oppenheimer-Volkov equations for neutron stars? Most things I find are either too elementary and others skip multiple steps. I think the EoS to use should be that of a Fermi gas model, but I am not sure.

Hi, I am working with a juggling simulation to better my understanding of projectile motion. However, I encountered a slight problem. To my understanding, an initial y velocity and an initial x velocity are independent of each other. A y-velocity affects the height of how high the ball...