Can the set up files created for openfoam v4.0 (from .org) can be used for openfoam 1906 (from .com)?

I noticed that openfoam software is provided by two different organisations 1. ESI group 2. OpenFOAM foundation. My doubt is if the cases are set based on the version provided by openfoam...

31 December 2019 4,726 2 View

Is meshgems (add on module in salome) is good for hexmeshing of fluid domain to be run in openfoam?

Hi I'm currently using snappyhex mesh for meshing my fluid domain to run simulation in openfoam. I found salome is better free alternative to snappyhexmesh, but the time required by the mesh...

10 November 2019 1,568 1 View

Why the flow direction seems fixed along 'x' axis in OpenFOAM 6 (I apologise I found no issues with velocity compoent)?

I recently updated my OpenFOAM version 4.0 to 6. I'm facing an issue in the direction of flow. My flow is always pointing in x direction. Hence I tried to change the flow axis in a tutorial...

08 September 2019 5,629 1 View

Is just the pressure raise on closing the valve causes water hammering?

I recently saw this lecture from NPTEL on water hammering. I suppose example used for explaining the wave motion is widely used. (flow from a reservoir and valve...

07 August 2019 1,756 4 View

How to determine the suction pressure of multiple pumps operating in parallel?

Hi Im doing an analysis on total head developed by a pumping station that has 6 pumps. We have measurement reading for pressure on delivery side, but unfortunately volume flow rate is measured at...

09 October 2018 4,197 1 View

How to determine the head rise in vertical turbine pump?

Dear all, I'm looking to apply Bernoulli's principle to determine the head rise in the pump. Since most of the lectures are based on centrifugal pump, there is a suction pipe and delivery pipe,...

09 October 2018 10,047 0 View

What is the difference between freestream BC and inletoutlet BC?

08 September 2018 1,089 0 View

How to connect between Simulink 2014a and Code Composer Studio V5?

Hi I'm working on active noise cancellation using DS TMS320C6713. I have created the model in simulink but I'm not sure how to transfer the mdl file into CCS v5.

06 July 2018 6,210 0 View

Why the hydrostatic pressure at outlet is not chaning based on velocity and total pressure?

02 March 2018 3,670 3 View

How to set up domain for cfx non premixed combustion modelling?

Hi all I'm trying to remodel pool fire modelling based on this paper "LNG pool fire simulation for domino effect analysis"...

11 December 2017 954 2 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 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

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

What is the characteristic length to determine the Reynolds number for the scattered turbulent fluid flow?

Dear all, I just saw this example in FB on the difference between laminar flow and turbulent flow. The flow from a pipe hits the sink and scattered. The flow from the pipe is characterized as...

02 March 2021 1,999 5 View

Can we distinguish the type of free fluid inside the pelvic and abdominal cavities whether blood or serous fluid using the ultrasound?

during ultrasound examination of acute abdomen, sometimes we see free fluid , can we know the type of fluid ,whether blood or not , using ultrasound only? if yes , what are the sonographic...

01 March 2021 7,476 4 View