Backward facing step flow problem

08 August 2014 1 3K Report

How to find the reattchment Lenghtin backward facing step flow problem ANALYTICALLY and also in FLuent ??

Well in Fluent is just a matter of make a slice of your 3D results and measure the distance. Analytically you can use the negative intermittent velocity method described by Kadota and Nezu [1999].

Badges
Science topic

More Abhay Minachi's questions See All

Why is the constraint on the minimum size of the droplet size in engine combustion?

It is always said that, smaller the droplet size, better is the mixing efficiency, and hence more efficient is the combustion as well. But literature says, there is certain limit on the minimum...

07 August 2016 4,066 4 View

The concept of Hydraulic Diameter in Turbulent Boundary Conditions

We are selecting turbulent intensity and Hydraulic Diameter while giving Turbulent boundary conditions in FLUENT. How is it used to find the other variables like K (Kinetic Energy) and Epsilon...

03 April 2015 2,890 2 View

How does Fluent calculate the variables that are not mentioned in boundary conditions?

In Fluent, when pressure outlet boundary condition is mentioned, we are usually mentioning only the value of the pressure at that boundary, but it is also necessary that even velocity should be...

31 December 2014 737 3 View

Why is Spread Rate in laminar jets higher than that of the TurbuLent Jets?

It has been mentioned in the literature that the Jet spread Rate (Ku ,which gives the measure of the mixing or entrainement ) for laminar jet is more than that of the Turbulent Jets. But its a...

11 December 2014 3,367 5 View

Why doesn't the solution of the analysis change upon further optimization in grid size, but remains constant while doing a grid independent study?

06 July 2014 7,259 1 View

How does a coherent structure differ from an eddy?

See above

06 July 2014 2,128 7 View

How can I solve NS equations using SIMPLE?

While solving a fluid flow problem of an NS equation using the SIMPLE algorithm, why do we neglect the neighbouring terms for velocity grid point in velocity CORRECTION EQN? Does that assumption...

06 July 2014 778 5 View

Why did I receive the Error message ''Divergence detected in AMG solver: x-momentum'' in Ansys Fluent?

Im solving 2D axisymmetric problem in Ansys Fluent.

06 July 2014 7,235 12 View

How can I prepare virus for a TEM or SEM imaging?

I have virus (viral hemorrhagic septicemia virus) in suspension and the experiment will not involve cells. What level of TCID50 is preferred?

11 August 2024 3,115 1 View

Baseline drift in HPLC? What causes this?

Hello, Why do i see this baseline drift when i compare my blank (black) to the sample (blue)? Any suggestions as to why this happened? Thank you!

11 August 2024 3,770 4 View

Handling Missing Data and Building a Predictive Model with Incomplete Information ?

I am developing a predictive model for a water supply network that involves 20 influencing points. However, I only have historical data for 10 out of these 20 points. I would like to know how to...

10 August 2024 4,005 2 View

Is it possible to use the Fused Deposition Modeling (FDM) to additively manufacture interconnected porous structure generation of >100-200 micrometer?

Usually, additive manufacturing techniques like SEBM, SLS, and SLM are used for interconnected porous lattice structure generation with sizes of >100–200 micrometers. Can the Fused Deposition...

09 August 2024 7,892 0 View

How to define an anisotropic material with asymmetric elastic compliance/stiffness matrix in ANSYS APDL?

I need to model an anisotropic material in which the Poisson's ratio ν_12 ≠ ν_21 and so on. Therefore, the elastic compliance matrix wouldn't be a symmetric one. In ANSYS APDL, for TB,ANEL...

09 August 2024 5,048 2 View

How to calculate CCS for Sodiated adduct ions and Multiply Charged Ions?

I'm currently working on calculating the collision cross section (CCS) for various ions, and I'm facing challenges when dealing with sodiated and multiply charged ions. Most of the resources I’ve...

08 August 2024 8,329 0 View

How can I apply boundary conditions in an orthotropic steel deck numerical model using ABAQUS software?

I am trying to simulate vehicular loading on an orthotopic steel deck bridge section in ABAQUS software. The red arrow mark in the attached figure indicates the direction in which the vehicle will...

08 August 2024 719 0 View

Stability of the Solar System: Insights from Einstein’s Equations ?

The stability of the Solar System is a complex subject that blends the classical framework of Newtonian mechanics with the modern insights provided by General Relativity (GR). Understanding this...

07 August 2024 2,569 1 View

Can you suggest reliable sources defining "3D mesh" and "3D city models"?

Dear fellow researchers, I am currently working on a paper where I need to provide a reliable reference that defines and distinguishes between 3D mesh models and 3D city models. Although I am...

06 August 2024 9,986 2 View

How to determine positive-stained cells in FACS? Use isotype or unstained control?

To compare positive and negative cell populations in flow cytometry, should I compare unstained cells with antibody stained cells? Or with the isotype control? Most papers show comparison with...

06 August 2024 6,728 6 View