How can you specify blending factor in 2CD: second-order central difference scheme with 1UD: first-order upwind difference scheme in fluent?

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Choi Williams Distribution gives the mirror image for real Data?

When I do Time-Frequency analysis using choi William's distribution for a Sine wave (using real data) I should get a single line indicating only one frequency should present over the entire time...

17 February 2023 789 2 View

I tried to synthesis nickel oxide nanoparticles from nickel nitrate and took xrd.Then I observed that the peaks of nitrate also appears in xrd.why?

Usually nio does not have a peak between 50 and 60 degrees.But my xrd shows a high intensity peak there.Can anybody please help me

24 January 2022 7,086 7 View

How to simulate melting and simulation in STAR-CCM?

Hi I am simulating phase change material in star - ccm. I am unable to define physics condition for PCM material. I have rectangular box with white petroleum gelly. It will absorb solar radiation...

28 November 2019 7,829 3 View

How can I get hourly solar insolation data in India ?

I am unable to get the hourly solar radiation data of my study area Mumbai, Maharashtra. How can I get hourly solar insolation data of Mumbai, India?

02 November 2018 4,451 10 View

How to draw helical coil in STAR CCM?

Hi Friends I am using star ccm. I need to draw helical pipe. Is it possible to draw helical structure in star ccm ? If yes , how?

15 February 2018 4,667 9 View

How to simulate injection of air bubble in water

Hi We are simulating injection of air bubble in flowing water (to reduce frictional resistance) by using STAR CCM. We are facing difficulties in formation of air bubble in simulation. It has...

07 August 2017 3,550 5 View

How to add moisture content in solid particle In Fluent DPM?

I am doing CFD analysis of waste heat recovery from flue gas to remove moisture content from coal particle. I think This is problem regarding Discrete Particle Method In fluent. But Hoe to add...

05 March 2017 10,079 2 View

How to resolve mesh error?

I am trying to simulate rotating spray dryer with water and air as multi phase. I got error in meshing The mesh file exporter failed during translation. Please send your data to your support...

25 May 2016 7,257 3 View

Can we split body in ansys?

In Ansys workbench we can split face using tool is it possible to split body in ansys workbench? If yes , how?

23 May 2016 8,289 10 View

What will be boundary condition is it temperature or heat flux?

I am simulating temperature distribution of water around condenser in two case. 1) condenser is filled with water vapor 2) condenser filled with ethanol vapor More amount of heat rejected in...

08 October 2015 7,224 3 View

How are iso-frequency contours plotted?

Let's say we have a standard, regular hexagonal honeycomb with a 3-arm primitive unit cell (something like the figure attached; the figure is only representative and not drawn to scale). The...

07 August 2024 1,937 1 View

Short Synthesis of Graphene Oxide from Natural Graphite Flakes?

I am in search of a modified Hummer's method, which can be used to synthesis graphene oxide within 6-8 hours. As I am a student it is not allowed for us to work after 5 in the laboratory. So I am...

01 August 2024 8,368 2 View

Has anyone looked into the stability of FEM methods on curved meshed?

Google scholar isn't giving me any results on this

27 July 2024 595 2 View

Problem with Two-phase simulation?

Hello; I am conducting a CFD study on two-phase flow in a separator, utilizing refrigerant as the working fluid. For this study, I have implemented pressure inlet and pressure outlet boundary...

25 July 2024 2,309 5 View

How can I decrease the error of Rietveld method for phase quantification?

Phase quantification in steel contain BCC and FCC

20 July 2024 8,150 7 View

Can someone help with the instrument configuration in Profex using Rietveld Refinement?

I am trying to configure the instrument in Profex but I can't get a chi-squared value below 9.65 for LaB6. This is the configuration of the equipment, which is a Bruker D8 Advance with a Linxeye...

14 July 2024 4,767 1 View

Anyone working in Model updating technique using FEM?

I am trying to model RCC beam with induced corrosion. How to model this beam using model updating technique.

14 July 2024 3,536 3 View

I came across oscillations in a pressure profile for a pipeline flow along the axis of a cylinder, how do I prove that these are not numerical err?

In terms of CFD, we often analyze the stability of the error using Von-Neumann analysis, especially for FDM based problems. Should we follow the same approach for a compressible fluid flow using FVM ?

13 July 2024 6,296 5 View

How to introduce on fluent the optical loss of the wall due to the reflection of the plate towards the environment ?

"When solar irradiation reaches a surface, some of it is absorbed while the rest is reflected. Part of the light absorbed by the surface transforms into heat and increases the module's...

13 July 2024 8,621 5 View

General Axisymmetric Solid Elements 272 & 273: what is their formulation?

Dear Researchers, Recently, my research group and I have been working on understanding the formulation of axisymmetric elements. We began by studying 4-node and 8-node Axisymmetric-Harmonic...

12 July 2024 6,755 2 View

David Rathnaraj Jebamani

High oreder schemes in CFX and fluent is robust and have less accuracy when using a specific blend of 1. It varies with different simulations

Somanath Nirali

@stefan Schmidt is it right

/solve/set> numerics

implicit body force treatment? [no] no

solve rotating frame problems using absolute velocities? [yes] yes

use physical velocity formulation for porous media? [no] no

disable high order Rhie-Chow flux? [no] no

disable high order terms for PRESTO! pressure scheme? [no] yes

1st-order to higher-order blending factor [min=0.0 - max=1.0]: [1] 0.9