How to choose the proper relaxation parameters in the case of flow past a circular cylinder with MRT-LBM?

19 April 2024 0 953 Report

I want to know if there any proper method available for choosing of non-conserved relaxation parameters in MRT-LBM? Any literature suggestion would be helpful in that case.

Badges
Science topic

More Shuvranil Sanyal's questions See All

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

If modulus of elasticity is divided by any inertial or dynamic pressure (1/2rhov^2), is there any dimensionless number present to represent it?

While deriving for a momentum equation with elastic stress effects, I am planning to put a ratio between elastic modulus (in Pa) and dynamic pressure (in Pa) in a simplified form. I am not...

23 June 2024 8,059 1 View

Can someone recommend a software (preferably free) that can help me enter and assed positional scan data to obtain inter-individual distances?

I have scan data of multiple individuals over a while and their positional photographs were taken at certain fixed instances during focal sampling. I want to obtain the inter-individual distances...

26 May 2024 2,597 2 View

Is there an approach to draw interview questions from pre-validated standardised scales?

Hi! My thesis is primarily quantitative in nature. I would be using pre-validated scales for measuring my variableness. I would like to add a qualitative component to it. My query is if there is a...

30 May 2023 7,894 4 View

Is the Entropic LBM useful for simulations of highly viscous flows through microchannel?

Let us consider a case where we need to simulate a moving cylinder in a microchannel where the Reynolds number is order of 10^(-3). Is the Entropic LBM useful in that case?

28 May 2023 3,712 0 View

In LBM for non-Newtonian fluids, Why we need to calculate the deviatoric stress component using non-equilibirium distribution functions?

For calculating the stress tensor for a non-Newtonian fluid, the factor D_{alpha}{beta} is written in terms of distribution functions. Why does one need to calculate using non-equilibrium...

17 April 2023 8,551 0 View

Why am I not getting significant nucleosome peaks after performing ATAC-seq in ProB cell line?

Hello Everyone! I am optimizing the ATAC-seq protocol currently with ProB cell lines following the Kaestner Lab protocol which is a modified version of the Buenrostro et al. protocol. I have...

03 May 2022 2,906 0 View

Which value should we consider for mediation while using Hayes process macro on SPSS?

While calculating mediation by Hayes process macro on SPSS, we obtain the outcomes with coefficients, LLCI and ULCI, etc.. Which value should we take for commenting on the degree of mediation?...

10 January 2022 4,333 1 View

MTT alternative for checking cell viability?

I am working with a herbal extract and currently attempting to determine the appropriate concentration to use for further work, provided it does not cause cell-death- using cellular viability for...

16 December 2021 4,610 7 View

How to export peak , rms values of pressure and force from ansys cfx?

Normal average values can be easily calculated from the Steady-state solution. But not getting any similar type of option for transient simulation. What is the procedure? Thanks in advance

19 October 2021 9,140 3 View

How does grain and grain boundary affect the ceramic when studying its dielectric properties?

I am not able to get good literature and the physics behind how first these grains and grain boundaries arises out of no where when we make a pellet to study its dielectric properties and then how...

07 August 2024 5,177 3 View

What is the difference between creep deformation and stress relaxation ?

I understand the basic definition for both. I found a literature to describe both of them. In the paper, they states: If a stress is applied to a concrete body, the body experiences an elastic...

19 June 2024 525 3 View

Convergence analysis of Temperature Dependent Lattice consatnt using CPMD?

I am trying to find out temperature dependent lattice constant (Silicon) using CPMD (NPT ensemble). If I want the lattice parameters at 300 K, should I set temp 300 K in both &cell and...

07 June 2024 4,586 0 View

Can anyone send me the Weblink to Download ECRTool?

ECRTool is a Matlab based software tool for plotting Electrical Conductivity Relaxation graphs.

04 June 2024 8,133 1 View

Could diaphragm spasms cause obstructive sleep apnea and pulmonary hypertension?

Hypothesis: Diaphragm spasms contribute to obstructive sleep apneas and pulmonary hypertension. While in diaphragm spasm, which appears to happen most often in REM-sleep (in the form of...

30 May 2024 297 4 View

Conduction mechanism in dielectric in Jonscher power law?

In dielectric, how do we know whether conduction wrt applied frequency takes place due to electron or due to a polaron. In Jonscher power law, can we distinguish whether the conduction is due to...

16 May 2024 4,102 1 View

Which are the suitable under relaxation factor to ensure a better convergence in the laminar mixed convection in Ansys Fluent?

which under relaxation factors is suitable for laminar mixed convection when using SIMPLE algorithm for velocity-pressure couple, PRESTO! and second order UPWIND schemes for pressure, momentum and...

19 April 2024 6,162 0 View

Stress Relaxation Curve from Hyperelastic Model in ABAQUS?

Hi, I am trying to get stress relaxation profile from a simple hyperelastic model. Step: I applied 2 steps(static, geometry) in a simple 3D cylindrical model where first step was 30 secs and...

19 April 2024 3,128 0 View

Could anyone please suggest a better experiment to determine whether chromatin is transcriptionally active for a particular gene or not?

Additionally, we aim to predict whether the chromatin is in a condensed or relaxed state!!

15 April 2024 7,439 3 View

Not Converging in SECOND ORDER UPWIND Scheme, wHY?

Hi Friends, When i am doing simulation[steady, 3D, PISO Alogirthm], Solution is converged in first order upwind scheme (both continuity & momentum Equ, Energy) but when i switch over to...

17 March 2024 1,875 0 View