Simulation Definition and 816 Threads

Hello! I need to build an electromagnet for my DIY project. But I have a problem with choosing right configuration. But I have not found any open-source or student-license software for this goal... It would be great if someone could post some links to that kind of software.

Homework Statement 1. The first part of the problem was to find a transfer function. Output is the displacement of the mass (mass of pinion is negligible) 2.The next thing to do was find the poles, which I believe means set the denominator=0 and solve for s. 3. The next thing to do was find...

What am I trying to do? I'm trying to implement a simulation of a chaotic billiard system, following the algorithm in this excerpt. How am I trying it? Using numpy and matplotlib, I implemented the following code What is the problem? When calculating phi_new, the equation has two solutions...

Hi all, I have to estimate a photocurrent produced in the following simulation setup. Photodiode (detector) and LED (spaced 2cm) lie on one axis, oriented toward a wall (radiometer film) which is parallel to the axis and at a distance of about 10cm from the axis. How much photocurrent would an...

Hi all! I would be interested in paints that show very high absorptivity/emissivity and that can withstand high temperatures (ideally above 1000°C) and used in vacuum. Do you have any commercial suggestions? Thank you!

Homework Statement I'm trying to create a simple excel simulation for runaway electrons using a given energy-loss per unit distance equation (Bethe formula). I'm stepping through time (pico-seconds) and giving the the electric field some initial value at a distance of 1mm and from there...

Is it possible,at least theoretically, to take digitised DNA and produce a computer simulation of the organism that it came from?

Homework Statement I'm setting up an experiment for a simulation. I'm not sure how to formulate the hypothesis. The model used in the simulation is the first iteration, so I'm just using 2 attributes, 1 independent (A) and 1 dependent (B). As a result, I need to state explicitly that this model...

Is there any simulation software for Balsa Bridge ?

Some of the social sciences suffer from "physics envy". This malady causes educators to inject an unnecssary amount of mathematics into the curriculum as a way of gaining scientific letgitimacy. Sadly for most undergrads, the math actually gets in the way. I wrote a paper in which I describe the...

I have a question regarding LQC that I can't find anywhere, and since most of the relevant answers to similar questions are here I may as well ask, here... For a simple background, when I was introduced to the big rip and combined that with the big bang, I immediately thought the two co-existed...

Hi guys, I am very interested in modelling and simulation as a part of a bachelor physics course. So I am searching for a physics course, as a part of 1st year bachelor study, where you do very much modelling and simulation. Can you name me some universities or universities of applied sciences...

hello every one i want too simulate a coil with with Maxwell and transient solution type: this coil is in a paper and i want to simulate it i attach the coil properties. in this paper the dimension of coil is given such: [FONT=Times New Roman]diameret:12cm; length=84cm; moment=30a-m^2...

Hello. This is not homework, so I am posting this here because I feel this is the right place to do so. How do I find charges Q1, Q2 and Q3? The answers are given as follow: Q1 = Q3 (This is due to the symmetrical arrangement) = 6.97 x 10^-11 [C] Q2 = 1.44 x 10^-11 [C] I really...

Hi all, can anyone recommend a good software to help in design and simulation of PCB traces, matching circuits, and microstrip lines. Thank you.

http://www.falstad.com/qm1d/ is a really good way of getting a feel for the dynamics of a single particle in a variety of potential wells. Does anyone know of an equivalent (hopefully free) program for multi-particle systems? Dustin Soodak

What is the best simulation software that allows for user input of variables and covers the widest range of physics topics. I.e. from introductory mechanics all the way to particle physics. If there is even any such software out there. Thank you!

is there a numerical method to determine whether two bodies will stay bounded forever in an n body simulation? i know if the energy of a particle orbitting the origin is negative, then it is bounded, where -∫(force)dr+(dr/dt)2/2=energy. but I am curious about a genereral case, where there are...

Hello everyone, I would like to get ~200 MeV quasi-monoenergetic electron beam by doing 2D Particle-In-Cell simulation in bubble regime. The moving window dimension is 50x50 μm for x and y, the simulation mesh size is set 0.04x0.4 μm, each mesh includes 10 particles, laser wavelength is 800 nm...

hey all! I have just finished processing the data of an n-body simulation (RAMSES code was used to do the simulation and AMIGA halo finder found our halos) ,so I have chosen a specific halo and it contains a massive galaxy (and of course satellite galaxies around it) and the code was run from...

I am doing "Schlieren imaging" visualization of a gas flow from the nozzle. could anyone please recommend a software to simulate a gas flow from the nozzle. in addition please recommend a software to simulate optics, like the propagation of a light beam through the optics and image...

I have to write, with two friends, a simulation based physics paper at school. The problem is, that will I am quite familiar with the concepts of calculus and algebra, my friends aren't. So, we could find a good topic. The task is, to write a paper about a physical topic, with the use of a...

Hello guys i want to compose a code (in C++) for Ns3 to simulate the fuctionality of sliding window , maybe can help me somebody!

Do you think we will ever be able to create a simplified computer simulation of the universe using the cosmic microwave background as the initial state that would generate the true locations of galaxies or at least galaxy clusters, and then be able to find our own galaxy or galaxy cluster within...

The article can be found here: http://www.washington.edu/news/2012/12/10/do-we-live-in-a-computer-simulation-uw-researchers-say-idea-can-be-tested/ Here is the actual paper: http://arxiv.org/abs/1210.1847 My question is not about the validity of his premises - because I actually don't...

Hello, I have modell in Ansoft Maxwell sumulate and need to transfer (import) it in Workbench ANSYS for the next step (Thermal analysis). How can i import it? Thank.

hi there, i'm trying a to simulate a savonius rotor in simulink. below is brief summary of how much i have done:- 1. derived the equations for torque. 2. MATLAB code done. 3. in simulink the equation I'm using to get the angular velocity and angular position is T...

Hi Cthugha In my previous thread which has now been closed, you mentioned the Hong-Ou-Mandel effect. I have attempted to simulate it in an Excel spreadsheet but I have not managed to obtain the correct-looking results. I have attached a Jpeg of the spreadsheet and would be very grateful if...

Hello all, I have been working on an NPT monte carlo simulation. I would like to know how I can measure the instantaneous pressure of the system at each monte carlo step?

Hello, I am using MATLAB to simulate a Fraunhofer diffraction pattern for a given aperture, but I have a little question. Hope someone can help. Sorry I am just a high school student and does not completely understand all mathematic deductions about Fraunhofer Diffraction on Wikipedia. I...

Hallo, I Need to know how is possible to simulate in OrCad Pspice this mathemathical equation. This will be my reference waveform and later I will design my own electrical circuit to be as Close as is possible mathemathical equation. I have Problem how to design time dependant current Output...

i am a complete nooby in statistics, therefore the question i am about to ask may sound very unprofessional warning :) so, we have a task to simulate a G/G/1 queueing system for particular parameters (Erlang distribution is assumed). I have been able (hopefully) to find out what mean and number...

Hey everybody! I wanted to simulate an antenna in Low Frequency, but I don't know any suitable software for this purpose. I'll appreciate if anybody could help me out... Thanks

The picture shows the potential due to ring charge. Please show the full steps of deriving the equation of electrical potential. I don't know how to start at all. NOTE: The electric potential of the revolving symmetrical ring electric charge related to the axis z as depicted in the diagram...

I am writing a MATLAB script that generates a dynamic simulation of a piston being driven by compressed air. My starting values for pressure and volume are as follows: P0 = 14000000; %nm-2 or 140 Bar V0 = 0.005; %m3 or 500cc The simulation needs to be quite detailed and must take into account...

1. In a crash simulation, a car traveling at x m/s can stop at a distance d m with a maximum deceleration. If the car is traveling at 2x m/s: A. Stopping time is doubled B. Stopping distance is doubled C. Stopping distance is quadrupled D. Both A and C Ok, so I thought this was a...

I am trying to simulate a Gaussian beam through an optical waveguide having a circular cross-section in matlab. I am familiar with the theory of modes in an optical fiber and can analytically calculate the evolution of the beam by breaking down the beam into a sum of infinite modes. However, I...

The solution's form for the ODE $$\frac{d\vec{r}(t)}{dt\;\;\;\;} = k\;\vec{r}(t)$$ can be generalized like in this diagram: https://upload.wikimedia.org/wikipedia/commons/3/35/Phase_plane_nodes.svg Exist some program or some way of adjust some program of math for study the behavior of the...

Hi,does exist any simulation of Sun and Earth circulation with data of lasting of day and night in different places on Earth during seasons? Thanks a lot

Good morning/afternoon/evening to all, I have a question for those more familiar with simulation software. Allow me to elaborate on my situation: My professor and I have nearly completed our journal submission on space photonic laser thrusters, and we have built upon recent ideas brought...

I want to simulate the absorption spectra of gold octahedra when irradiated by a light source, according to the information I have gathered I can use discrete dipole approximation technique because octahedra is not spherical (in contrast to Mie Theory which is applicable to spherical particles)...

Hello, 1. Does anybody know which book that gives a good explanation about monte carlo simulation? I've read many tutorials, it mentions about its error, accuracy, variance. But, many of them don't actually show, how to perform monte carlo simulation. Questions 2. Is it actually the same...

i am trying to simulate on "overload alert for a transformer using voice circuit"- i am using a current transformer as current sensor which is connected to controller PIC16F72 in the hardware design for constant checking of current of a transformer and a voice circuit is used. Now while doing...

Hey all, This may be a bit of a stupid question, but I'll ask it anyway... For the past weeks I've been running some DEM (discrete element method) simulations, and each simulations produces a couple output files and has different input variables/commands stored in a separate file. Already I...

hi all. i have an assignment to design a gear system. so, anyone can suggest me a software that i can make a simulation about a gear? prefer simple software that got a lot of function. thank~~ Edit: i tried this software http://gears-simulator.software.informer.com/3.0/ but i need a function to...

Hi Im busy creating an application to simulation a rocket in orbit. I am having trouble as the results I am getting are incorrect. Could someone please check if I am using the correct method as stated below. Everything works on a 2d plane, and has a x and y coordinate and a x and y...

Hello, I need to make a simple model of human hand with a vein that has the same pressure of a real vein 10 to 30 mmHg ,basically I want to use it with my iv infusion pump design ,please could you tell me what is the best way to do that?

Hi, I have a problem with my simulation (Multisim). I don't find the error. Voltage and current increase very high in a short time. It's only 3 selfs with coefficient at 0.9 for L1/L2 and for L2/L3. K is at 0 for L1/L3. I give image for the circuit and the result of simulation. The problem...

1. Homework Statement ----------------------------------------------------------------------------------------- CONTEXT: I'm writing an AI simulation for am upcoming assessment in my computer programming course, and I'm having some trouble with the physics and calculations. The simulation...

The Monte Carlo simulation is a very important tool in particle physics specially to tune in the preciseness of the real time experiment. In particle physics, I had an opportunity to work on the data analysis of neutrino flux produced from the g4numi (the Neutrino beam from main injector, in...