Mesh Definition and 244 Threads

I have installed LS Prepost beta(3.0). I was trying to work on the ball impact tutorial. I used the old to new tab to get to the GUI interface. I could find the mesh tab and gave the dimensions. It asks to then click on mesh render. I did not find any tab like mesh render. I need to know know...

I'm using anysis to model a 3-d object. I'm using a series of beams. however, when i try to mesh the beams, it says that it's unable to do that. When I add a shell, anysis meshes the model. How do I create a mesh with only beam objects?

EDIT I mean nodal, not mesh analysis xD http://img205.imageshack.us/img205/5931/omgt.jpg http://img694.imageshack.us/img694/2570/omg2p.jpg Are my are my equations correct? Here is the solution according to wolfram...

http://picasaweb.google.com/lh/photo/F1hFT0SaSpFdLqSvFA-BHA?authkey=Gv1sRgCMGC37jJtMLiXQ&feat=directlink Image : [PLAIN][PLAIN]http://picasaweb.google.com/lh/photo/F1hFT0SaSpFdLqSvFA-BHA?authkey=Gv1sRgCMGC37jJtMLiXQ&feat=directlink How do i use mesh analysis to find the current of RL? can...

Homework Statement Given the following circuit using mesh's method to solve for the power of the dependent source. Using the same circuit and using the node voltage method solve for the power of the dependent source. Circuit: Homework Equations Noting that I have to implement a...

Homework Statement Determine the Voltage across Resistor R6. Homework Equations KVLThe Attempt at a Solution I called the bottom left Loop I1, the bottom right I2 and the top I3. All currents are flowing clockwise. From there I set up my KVL expressions for each loop: -12 + 5600(I1-I3) +...

Hello, I'm trying to figure out MESH Analysis but for the life of me I can't seem to get the Voltage polarities on the resistors right. I usually like to assign my loop currents clockwise so I can get in some sort of a routine(I know it makes no difference). Can someone please help me explain...

Homework Statement The problem, as given in the textbook is: http://www.mcschell.com/circuit.jpg Homework Equations KCL, KVL The Attempt at a Solution The issue I'm having with this problem is that I get two different values for Ix depending on how I set up the equations for this...

I understand everything up to the point which I've marked in red... Can anyone explain those few lines? I would greatly appreciate it! Thanks.

Homework Statement Hello can you tell me a story about mesh analysis in electronics.I had no knowledge in mesh analysis so can I have a minimum knowledge in this topic Homework Equations The Attempt at a Solution

Hey guys, new user here. I had a question about a project I am working on with a professor. Unfortunately he does not have much experience with fluent but is a very intelligent and experienced person when it comes to the theory. So I am basically trying to develop a chart of the power...

I want to put my data on a map with coastline but I don't know how to do it. my data has a value on each (lat, lon). I can draw the figure by surf command and indicate it's coordinate by using meshgrid. I want this figure contains coastline so I used hold on to keep the original figure and...

Hi Guys, I seem to have forgotten most of EM, but I was hoping for some help on estimating the capacitance of a wire mesh/grid parallel to a solid plane. I'm guessing that it will follow the form of a simple parallel plate (with the appropriate area factor) if the geometries are such that the...

COMSOL Rectangular mesh (VERY URGENT) I am trying to modify the mesh of a COMSOL simulation. I need to make my mesh rectangular instead of triangular that COMSOL defined already. Thanks. Engin

FEM -- mesh generator, transition elements Hello, I would like to implement 2D mesh generator. Mesh should consists of triangle and rectangle elements and those triangle elements will play a role of transition elements. The example of such mesh is here: http://pkow.pl/transition_element.jpg...

Hi. I want to make a mesh for a airfoil for i solute it with FLUENT. I must use the k-e turbulent model but i do not know how i make the mesh near the wall of airfoil. I have read that the Y plus of first cell must be within 30-300 for standard wall function. However, How can i compute the...

Homework Statement Determine I_1 I_2 I_3 When E = 15V R1 = 20k ohms R2 = 4.7k ohms R3 = 10k ohms Homework Equations KCL equation The Attempt at a Solution i tried to find using KCL.. is my equation right? Loop equation 1: EB + I3R3 + R1(I3 + I1) = 0 Loop...

Im doing mesh analysis on an AC circuit only problem is i don't know how to handle the dependant voltage source. My circuit: http://img139.imageshack.us/my.php?image=accircuitrx0.jpg I think I am supposed to just assign a value for Vo but I am not sure. Is it possible to work out what Vo...

These two methods seem like they can be applied to the same situations, and I don't really know when I should apply one over the other. I've only just learned the methods so I'm not very familiar with either though. I'd appreciate any help from general guidelines to specific examples.

Homework Statement Using mesh analysis work out the currents flow through each of the three meshes. From these current values calculate the voltage of node A, and node B with respect to the ground node. Find equivalents of sub circuits A-G, B-G, A-B by applying Thevenin's theory. Then...

Hello everybody on the physics forum, i was just looking for someone to point me in the right direction and tell me if my equations are right Homework Statement Determine the current though the resistance R2 by mesh analysis http://www.freeimagehosting.net/uploads/a77e95d378.jpg The...

hello, while doing the mesh analysis what do you substract to what to get the current that is in the middle of two loops what is the rule to get i1 - i2 or i2 - i1 it depends on what ? thanks in advance for the help :smile:

Hello! I'm trying to find some information about my problem but it doesn't seem very easy. 1 - I have a convex polyhedron defined as the intersection of several half-planes. 2- Now I would like to obtain a triangularization of the polyhedron surface in the best way. Can anyone indicate me...

I'm having trouble finding a suitable material to keep critters from nesting under our solar panels. Galvanized steel mesh oxidizes quickly because being attached to the solar modules, and plastic mesh just isn't strong enough and looks unsightly. I need a steel or metal mesh that will not...

I have a question for the enlightened minds. In physics class we found our debrouille (sp?) wavelength, we found that an average human gives a ridiculously small wavelength. H/p. Now what happens when you do this to an electric current in an exposed wire? (6.626E(-34) m2 kg /...

[SOLVED] Mesh Analysis Homework Statement I am having trouble solving this circuit for its currents. I have also tried nodal analysis, and haven't been able to come up with anything http://img90.imageshack.us/img90/4240/circuitfp2.th.jpg Homework Equations The Attempt at a...

Homework Statement Use mesh analysis to find the current through the 4 Ohm resistor. Homework Equations The Attempt at a Solution From this circuit I managed to work out the three mesh equations using mesh analysis. Mesh 1 = 7I1 + 4I2 = 67 Mesh 2 = -4I1 + 15I2 - 6I3 = 152...

Homework Statement For the following circuit determine: I, Vab, Vac, Vbd, Vcd See attachment for circuit diagram. Homework Equations Mesh Analysis method The Attempt at a Solution Using mesh analysis: -7V + I1 - I2 + 6V + 2I1 -2I3 = 3I1 - I2 -2I3 ------------------mesh 1...

Homework Statement Find the mesh currents i1, i2 and i3 Homework Equations The Attempt at a Solution I did it this way KVL at i1: 12 + 1i2 + 1i1 - 1I2 + 10 = 0 KVL at i2: 10 + 1i2 - 1i1 + 1i2 + 1i2 - 1i3 = 0 KVL at i3: 1i3 - 1i2 + 1i3 + 12 = 0 I was wondering...

Homework Statement An element mesh is based on the following 3-node and 4-node elements (0,0) (0.5,0.5) (0,1) (1.5,0) (1.5,0.5). The approximation for the 4-node elements is T = a1 +a2x +a3y +a4xy, while the approximation for the 3-node element is T = b1 +b2x +b3y. Is the converegence...

My circuit analysis professor showed us a method of nodal/mesh analysis today that allows us to write the matrix equations for either nodal/mesh analysis just by inspection of the circuit. Is anyone familiar with this method or ever heard of it? The circuits that he used this technique...

I'm quite confused by mesh analysis. I understand that the idea is basically to apply KVL to each mesh. For example, if you have a loop that contains, say, a 3ohm and 2ohm resistor, and that's it, what is the correct KVL equation? Is it simply 0=3I+2I? As another example, check out this...

Hello , I am a 4th year ME ,I have as an Final year project to do a dynamic mesh analysis for the blades of a wind turbine ! unfortunately , i don't know how to start since it is the first time I work with the Dynamic mesh . I practiced ont he Fluent softwares when I took the CFd course, so i...

Homework Statement http://img266.imageshack.us/img266/7097/screenshot01sm8.jpg If I use mesh analysis, can I assume that Ix in the lower right mesh will be my mesh defined current (the only current through that mesh)?

Mesh Analysis -- (4 meshes) Homework Statement http://img185.imageshack.us/img185/1541/screenshot01ly9.jpg Homework Equations V=IR KVL The Attempt at a Solution Loop 1 is the top left loop. Loop 2 is the top right loop. Loop 3 is the bottom right loop. Loop 4 is the bottom left loop...

Hi I need to find Vab in the following circuit using Mesh Currents...Ive tried this a million times, I understand the method...but I am definitely doing something wrong. Whould I Simplify the top loop?...if its possible. I've been doing it as 3 loops, but i don't know what to use as a voltage...

Are there any practitioners here who could recommend something along the lines of openfoam for doing moving mesh? I've had no joy in using it but then this probably serves to illustrate my limitations more than anything

So here is what the problem states: Use both nodal analysis and mesh analysis to find Vo in the circuit below. http://synthdriven.com/images/deletable/EEN201-05.jpg My confusion: I'm okay with the nodal analysis, I'm just a bit confused with the mesh analysis... I'm confused as to...

I'm trying to get the equations for this exercise but they're giving me some troubles...I think this could also be done with node voltage,but I've tried with the mesh method.Those are my equations: Eq.1: -13 + 4xI1 + 6xI1 + 2.5xI2 + 7.5xI2=0 Eq. 2: 2.5xI2 + 7.5xI2 + 2xI3 + 8xI3 + 0.8vo=0...

This is a question from a review for our midterm coming up soon. I don't understand what I am doing wrong and need some guidance. It would be rather tedious for you (the reader) to view an ASCII circuit, so here is a http://static.flickr.com/46/118451767_63645eb724_b.jpg"of my work...

Hi Guys! well! i have made my all efforts in solving this circuit please help me. WHat technique should i use? Super mesh? or what? Plz help me

I need help with the following mesh problem. Doing the source conversion screws me up. I really need to get this problem correct and would like to check my answer with somebody who is more competant than myself at mesh analysis. Please help asap Thanks in advance

AN ADVICE: "If you are not familiarized with mesh generation, don't keep on reading, you will not understand nothing and I will not make you to waste your time." Sorry if it is not the appropiate forum for posting my problem. I'm currently programming an elliptic mesh generator in Matlab...

Not sure if this is the proper place fir this but here goes: I'm trying to figure out a way to computationally construct a lattice such that each lattice point is the center of the faces of a truncated octahedron which is tesselated through out space. The main problem is that I need to be...