How can I calculate the sum of the quantity of a variable along time steps in Comsol??

05 November 2017 0 5K Report

how can I calculate the sum of the quantities of a variable along all time steps? in every time step the variable has its quantity and i want to know the sum of its different quantities from first time step to the last calculated time step.

Badges
Science topic

More Arezou Eijadi's questions See All

What are thermal properties of Poly (p-toluene sulphonate) polydiacetylene PTS (PDA)?

Hello everyone, Could anyone tell me the values of themal conductivity, mas density and heat capacity of Poly (p-toluene sulphonate) polydiacetylene PTS? I need these parameters in my heat...

03 September 2023 2,297 0 View

Can I take total protein: pospho protein ratio for analysis the data of Western blot?

We usually use the pospho Protein: total protein ratio to evaluate the protein phosphorylation. But what does it mean if we take total protein: pospho protein ratio? Because when I take this ratio...

11 May 2023 7,858 3 View

Hall effect: How can I determine which metal contact is better for semiconductors in measuring Hall effect?

I wanna measure the mobility of semiconductors with Hall effect but I don't know which contact is properly work. I measured the hall effect of conductors such as Au and Ag without problem but Is...

10 April 2018 3,731 14 View

Is it possible to calculate enhancement factor(EF) in SERS for powder of Azo dye molecules and an aqueous solution of that?

I want to calculate EF in SERS spectra for powder of Azo-dye molecules and an aqueous solution of that. I know I must use that equation. but I don't know what is concentration of that...

11 January 2017 3,646 13 View

How gate voltage is applied on graphene?

Hi everybody, I saw in some articles, it is used parameter Vg (gate voltage) to change the fermi energy of graphene, But my question is how gate voltage is applied in monolayer graphene? In the...

29 November 2016 3,131 6 View

Which range of electromagnetic spectrum is better for observation of Anderson Localization?

Hi every one. Why observation of anderson localization, in the visible and infrared spectrum is difficult, whereas in the terahertz (due to higher dielectric contrast) it can be observe...

13 July 2016 3,772 1 View

Why is used definite n for some materials?

Read 5 answers by scientists to the question asked by Arezou Rashidi on Feb 2, 2016

01 February 2016 3,672 4 View

What is Gorter experession ?

Read 3 answers by scientists to the question asked by Arezou Rashidi on Jan 24, 2016

23 January 2016 5,156 3 View

Could we use n-hexane instead of tetra-decane for creating biphasic system (aqueous and organic) to simulate diesel oil ?

Could we use n-hexane instead of tetra-decane for creating biphasic system (aqueous and organic) to simulate diesel oil ??

09 October 2015 8,154 1 View

Problems about acousto-optic coupling in Comsol, how to check whether the moving mesh is correct?

I’m trying to reproduce the acousto-optic coupling simulation in the paper Frequency–angular resolving LiDAR using chip-scale acousto-optic beam steering. LNOI(lithium niobate on insulator) is...

13 August 2024 9,795 0 View

How to get LP fiber modes directly from Comsol?

Hi there, I'm new to modelling with comsol. I would like to ask if it is possible for comsol to output linearly polarized (LP) modes? I tried modelling a simple single mode fiber with an enlarged...

23 July 2024 4,019 3 View

Can anyone help with this comsol error? Pleaaaase I need help !!?

Undefined variable. - Variable: comp1.cNa - Géométrie: geom1 - Domaine: 1 Failed to evaluate expression. - Expression: comp1.cNa - Affichage: Graphique sur ligne 1

19 July 2024 1,938 2 View

Why electrical charge on the moving plate increase?

Hi, everyone This figure depicts a simulation of an electrostatic energy harvesting system in COMSOL Multiphysics software. My question is regarding the relationship between the changes in...

19 July 2024 4,694 4 View

Why does the error "The relative error (0.29) is greater than the relative tolerance" appear in Comsol Multiphysics?

Hello, My name is Radu Jubleanu, I am a PhD student at the Politehnica University of Bucharest. I work in the field of magnetic storage in superconductors. I want to carry out a numerical study of...

15 July 2024 6,025 1 View

How to use stress and displacement results from 1st stationary simulation as initial conditions for 2nd eigenfrequency simulation in COMSOL?

Dear All, I am trying to define the dispersion curves of a periodic unit cell in COMSOL Multiphysics with prescribed displacements. I am using two separate studies: - Study 1: Stationary, with...

13 July 2024 7,855 1 View

I have need a LPBF/SLM model on comsol multiphysics ?

In this model clearly understanding how to active one layer to another layer and how to add powder material properties step by step.

08 July 2024 6,147 0 View

Is it possible to define exothermic processes in finite element software like COMSOL? If yes, how can this be done?

We aim to study an exothermic process and evaluate its temporal changes. Could you recommend suitable software for this purpose and explain how to conduct this analysis? What specific data is...

30 June 2024 8,413 1 View

Has anyone simulated Argon plasma jet in Comsol?

Hello, Has anyone successfully modeled 2D argon plasma jet using the COMSOL? I would greatly appreciate any guidance on this matter.

30 June 2024 5,597 0 View

COMSOL simulation of transient wave optics propagation is not physical?

Hi guys, I am trying to simulate a 1 ps long plane wave propagating in a dispersive material, with the wave optics transient module. According to the drude-lorentz model, when the frequency of...

29 June 2024 486 1 View