How to predict the velocity distribution of a sprayed powder from a nozzle?

Hello everyone, I am searching if it exists any formula used for predicting a velocity distribution of injected solid particles in my case I used flour and the type of injection is through a...

05 June 2019 9,174 3 View

How to calculate the mean thermal speed of ions ?

Hello everyone, Could someone of you please give me a formula about how to estimate the mean thermal speed of ions generated by corona discharge in the air and this ions are accelerated by an...

07 August 2018 4,300 0 View

Which flow should I choose in the case of two parallel plates ?

Hello everyone, I am a little confused into choosing the right flow's nature wether it is Laminar or Turbulent and in my case I have the Fluid flow and particles are moving through two parallel...

01 February 2018 8,641 8 View

Should I take into account the Lift Force when simulating a Fluid Flow ?

Hello everyone,I am simulating an air flow with fine particles using for this the software Comsol Multiphysics and I wanted to know in addition to the drag force that is exerted on the particles...

07 August 2017 4,647 6 View

The influence of the drag froce on the particle's trajectory ?

Hello everyone ! I would like somebody who could help me in the comprehension of the trajectory of a particle in air flow with and without the presence of the Drag Force how the trajecotry is...

06 July 2017 5,823 7 View

Could I use two physics in only one study in COMSOL Multiphysics ?

Hello everyone, I have some problems when using of two physics which are both used in the stationary study and I would like to know their influences on another physics that uses the temporal mode...

03 April 2017 953 7 View

Does the term of Dynamic Viscosity exist for solid materials?

Hi there everyone ^^, I need some help for my study in the field of Fluid flow, I use COMSOL Multiphysics for this and When I add some solid materials like copper or aluminium for the geometries...

11 December 2016 5,738 15 View

Which boundary conditions should I use for a woodenboard transpierced by high voltage wires ?

Hello everyone, I use COMSOL Multiphysics 5.0 in my study and I want to know what must I put as a limiting condition for a plank crossed by wires placed in high voltage ^^ I used "Dielectric...

09 October 2016 1,754 7 View

How to simulate Laminar Flow 2D between two horizontal infinite parallel plates ?

07 August 2016 8,879 13 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

Sutter electrode holder leaking after applying positive pressure. How to fix?

I am using a Sutter electrode holder for my patch clamp experiments, but I'm having trouble keeping positive pressure inside my electrode due to a leak out of the back of the holder. I have added...

02 March 2021 5,829 1 View

What thickness need for ITO to use as conductive layer?

I want to do RF sputtering of ITO on glass substrate using magnetron sputtering. what thickness do i need to make it good conductive layer to use it for PSC. Moreover, whats about thickness of...

01 March 2021 395 3 View

Why is my platinum counter electrode getting dirty during electrodeposition?

I am conducting anodic electrodeposition of MnO2 onto a stainless steel substrate, using a platinum strip as a counter electrode. This is done galvanostatically, with the current held between 5...

27 February 2021 1,829 3 View

Can impedance of antenna be less than 50 ohms?

I am simulating helix antenna in hfss, right now, giving excitation with 50 ohms port. When I see the results of Z parameter (real). It shows lower than 50 ohms. Do not understand, if it can be...

27 February 2021 4,218 7 View

Should we reduce the standard unit of length to 0.31951540592 meter ?

The reasoning behind this question is to align the ratios of the proton potential in energy per charge to the speed of light in distance per time. As these two dimensions appear to be related,...

27 February 2021 947 7 View

How does charge on working electrode changes with rising potential?

During performing CV of a GCE or modified GCE, we rise the potential in the first half of the cycle and reduce it in reverse half. During the first half, what is the nature of charge on GCE or...

25 February 2021 7,994 3 View

Is is possible to pole with corona poling pellets of the sample material instead of thin films?

As it is highly probable that pellets will have a higher degree of air gaps and voids than thin films, is it possible to pole the samples with corona poling nevertheless? Or is there the...

24 February 2021 1,349 1 View

How to troubleshoot Electrochromic Films and Electrochromic Devices?

I am trying to characterize an electrochromic system. The system uses ITO electrodes on glass, WO3 as the electrochromic film, and NiO as the ion storage layer. When I deposit NiO and WO3 and...

23 February 2021 9,592 2 View

How does elongation affect the resistance of an electrode?

What are the testing rate for electrodes recommended by ASTM for cochlear implants. I am currently doing the 15mm/min elongatio testing.

22 February 2021 1,515 1 View