Panagiotis Dimakopoulos

8 Questions 12 Answers 0 Followers

Questions related from Panagiotis Dimakopoulos

How does the rifling phenomenon affect the loss of the high of a gun bullet during a shoot?

I would like to know the relation between rifling phenomenon, loss of High due to its weight, and the range of a shot. Thank you in advance!

26 March 2017 5,110 2 View

At which environment temperatures the viscosity of the resin starts to change significantly?

I carry out a Resin Infusion Procedure using a Curing Agents for Epoxy Resin. I work in Standard conditions for temperature and the duration of the process is 4 min. I want to know if the resin...

27 October 2016 2,125 2 View

How can I know all the node coordinates where pressure is calculated as also the corresponding node ID using COMSOL?

Hi,I have the square 5x5 geometry of the attached Figure. I solve a pressure distribution problem where pressure changes its values along the x-axis. I would like to know all the node coordinates...

14 September 2016 7,055 6 View

How can I perform 3D_curve_points projection on a 2D plane using COMSOL?

I calculate the pressure in some discrete points along a complicated geometry curve. The combination of the following tools brings me the pressure values.1) Edge_3D (which is selected from the...

12 September 2016 3,172 5 View

Can I increase an additional counter inside the genetic algorithm optimization loop (using the ga optimtool MATLAB tool)?

I use the optimtool MATLAB tool. Specifically I run a genetic algorithm (ga) for simulation purposes. There are some variables which change their values inside the loop of ga. Two of them are...

25 May 2016 4,972 3 View

Is it possible to minimize an array of values (not just a simple function), using the genetic algorithm optimtool of Matlab?

I am conducting simulations for Genetic Algorithm using optimtool('ga') of Matlab. I would like to minimize the difference of two arrays so that I can fix the valueof a parameter which is the...

10 May 2016 5,076 4 View

How can I find the pressure over time for every point from where the flow front will pass using COMSOL?

Hi,Ι need some advice about COMSOL Multiphysics. I have a simulation set-up. Specifically, Ι'm studying the transmission of a medium flow through a orthogonal parallelogram. I solved the problem,...

04 March 2016 451 3 View

Is the software COMSOL Multiphysics appropriate for getting velocity and pressure outputs per time (graphically)?

Hi, I use the software COMSOL Multiphysics.I would like to get the solution outputs of the mathematical problem that I run. Specificaly I would like to get pressure and velocity (according to...

13 December 2015 4,551 6 View