Divergence detected in AMG solver for temperature and species , DEFINE_VR_RATE, Fluent ?

In 2D Model, Reaction in porous Zone, Error occurs on hooking UDF , DEFINE_VR_RATE in Fluent, .The error spikes just after running calculation after 1st iteration. Divergence detected in AMG...

16 November 2020 9,053 3 View

How to create a surface plot and contour? If i have an excel file with X, Y ,Z values of the surface ( Periphery of a tube) and Q (heat flux) value.?

Need to create 3d surface plot. Data I have X, Y ,Z coordinate of the pipe surface and the corresponding Q (heat flux) values at that point. Nearly 222440 data points of a 2m length pipe. Thank you

07 October 2020 9,854 7 View

Initialization in Fluent? Hybrid initialization or Standard initialization ?

Looking towards an incompressible flow (with K-e, turbulence model), with mass flow/velocity inlet and Pressure outlet boundary condition. Which initialization method preferred? How far it can...

05 October 2020 4,742 5 View

Can anyone suggest good research topics for engineering management?

I am doing masters in engineering management.I need to find good topics to give a research proposal for this course

22 September 2018 5,356 3 View

How the critical heat flux vary with channel size for the same mass flux? Is there a general definition such that CHF increases with channel size?

If we take same square channel of different sizes, and allowing same mass fluxes through both, the small one or the bigger one can withstand the early dry out. I conclude the bigger one since...

04 September 2018 8,038 1 View

Best way to do speckle reduction in ultrasound imaging?

Dear All, I am trying to perform ultrasound image (linear array probe) smoothing using speckle reduction filters. Please suggest an easy to use and open access filter? It would be awesome to have...

21 August 2018 7,827 10 View

Why the Nyquist plot getting reverse and straight line for LSCF cathodes?

Dear Experts, I have recorded a typical nyquist plot for ( La0.6Sr0.4Co0.2Fe0.8O3) LSCF - Doped ceria nanocomposite which is a mixed ionic Electronic conductor. The sample has taken in the form...

13 November 2017 4,237 2 View

Is there any scientific basis for the early blossoming of "Cassia fistula" of Kerala and regional climate change?

24 February 2016 5,925 6 View

Can someone give me a brief explanation regarding the kinds of bacteria and the processes happening in aerobic and anaerobic bacteria?

Aerobic and anaerobic bacteria, methanogenesis, fermentations, factors affecting bacterial film growth, etc.

19 August 2014 9,862 5 View

Can anybody suggest a supplier for Chicken LH primary antibody for ELISA?

Chicken LH ELISA

28 August 2013 9,130 2 View

How to separate water from glycerol solvent in a solvent recovery vacuum distillation column?

I am currently doing my third year design project. I have been assigned to design a glycerol recovery column in vinyl acetate monomer production. The process unit before the recovery column is an...

01 March 2021 9,525 4 View

Multi effect distillation modeling in EES?

Dear colleagues If anyone has a model of multi-effect distillation in EES or MATLAB software, please send it to me.

24 February 2021 7,282 1 View

What is the best etching method for Mg-Ca alloy?

I have used Picral etchant (4.2 g Picric acid, 10 mL Acetic acid, 70 mL Ethanol, 10 mL distilled water) but it didn't work. Is there any alternative?

21 February 2021 2,558 5 View

How to dilute Toxin-DMSO solution?

I have a concentrated solution of a toxin(50 micromolar) in DMSO 100%. I need to dilute it inorder to dilute both the toxin and DMSO wich can be toxic to cells. Which would you guys recommend to...

19 February 2021 7,447 2 View

How to dissolve lyophilized silk fibroin?

Dear members of the community, I am trying to concentrate silk fibroin to 25 % (w/v). Nevertheless, i am struggling with the concentration step. I successfully achieve concentrations of 5-6 % of...

16 February 2021 1,808 1 View

I have some problems with the mass transfer part of the CFD simulation of membrane distillation.Can anyone help me?

I am working on modeling of Direct Contact Membrane Distillation system with COMSOL Multiphysics software. I have some problems with the mass transfer part of the simulation because I don't know...

14 February 2021 379 2 View

What are effective methods for removal of iron from organic acids?

I am seeking methods to remove trace iron from organic acids, including acetic acid, propionic acid, and formic acid. Distillation works, but is expensive. I'm looking for alternatives to...

31 January 2021 984 3 View

Why do the absorbance values of different concentrations of ascorbic acid solutions mixed with DPPH free radicals stay constant?

26 January 2021 458 14 View

Why degradation of pesticides is maximum at specific pH by using nanoparticles and nanocomposite?

actually, I am degrading pesticides by using inorganic composites the pH of the pesticide in distilled water is neutral the pH of nanocomposite is also neutral then why maximum degradation takes...

23 January 2021 8,775 3 View

In order to simulate a DWC in steady state, how to put the unit operations in the flowsheet of any process simulator?

14 January 2021 3,938 6 View