What are some methods of making very thin grids?

I am working on gridded ion thrusters.Presently we are using 1mm thick and 100 mm dia disk for beam extraction which has around 1000 1-2mm holes in it. The manufacturing of the grids is a...

09 October 2018 6,928 11 View

How can I define a Plasma in SIMION8.0?

I wish to study the extraction of positive xenon Ions through grids at different voltages from a plasma chamber.How can I define a plasma of a particular temperature in SIMION as I think it can...

07 August 2018 1,646 0 View

I wish to extract data from TRIM about Ionisation recoil.How can I find the .txt file?

I am unable to locate the Ionisation recoil file after the simulation in TRIM. Can anyone help with the issue?

01 January 1970 7,696 0 View

Will water boil in my case where maximum temperature of surface is around 400Degree?

I have to extract heat from a surface by cooling pipes of 6mm diameter with water flow.I wish to know whether the water inside the pipes will boil and cause Nucleate boiling effect as in case of...

01 January 1970 3,046 7 View

How to carry transient analysis in ANSYS?

I have calculated the steady state heat analysis for the Faraday Cup Materiel (Copper) and the maximum temperature reached on the surface is around 400-450 Degree Celsius. Is it safe to operate it...

01 January 1970 7,967 0 View

How to decide how much coating should I keep on the surface of my detector?

01 January 1970 3,570 3 View

How can I manually calculate the water flow rate required to cool a cylindrical geometry(Copper) heated by a 10kW beam?

I wish to manually calculate the flow rate of water required to cool a cylindrical cup shaped object which is being heated by 10kW beam? Can anyone tell the equations or methods to calculate the...

01 January 1970 6,777 11 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

What is your perception on using visual analysis or quantitative approaches to evaluate data from single-case research designs (n of 1 trials)?

Results of single-case research designs (i.e., n-of-1 trials) are often evaluated by visually inspecting the time-series graph and computing quantitative indices. A question our research team is...

03 March 2021 687 1 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View