07 July 2020 0 2K Report

Querying documents referenced by manual references is easy. But how to achieve the same using DBRef?

More Poornima Naik's questions See All
Residuals are getting converged, but at a very migh magnitude of values. Why??

I am running a coarse DNS case for pipe flow with 2.1 Million cells. My residuals are quite fluctuating as its a fully turbulent annular pipe flow case but its getting statistically converged to a...

29 May 2024 2,063 5 View

Effect of \nu variation for a turbulent pipe flow at a constat Reynolds number ???

I am trying to run a turbulent pipe flow simulation with turbulent Reynolds number of 600, for 15 seconds, the flow is pressure driven due to gravity enforced buoyancy force which gives kinematic...

20 May 2024 5,619 3 View

Why <u'v'> cross-corelation is important whilte studying Reynolds Stresses in most studies??

In most common turbulence model studies, when considering Reynolds stresses the components of auto-correlation, , , and components of cross-correlation are considered. In the research studies...

02 May 2024 2,776 2 View

Could you please suggest me some of the best multi-parameter water analyzer kits (with brand) that can be taken to field for water quality sampling?

I am planning to work on different water bodies of Andhra Pradesh. So I want to purchase a portable water testing kit with multiple parameters. Please suggest me a few best option, which would be...

17 April 2024 7,210 3 View

Enforcing Wall shear stress (\tau_w) as a boudnary condition in OpenFOAM?

I am working on WMLES (wall Modelled LES) for which if I calculate my wall shear stress analytically and want to enforce it as a boundary condition at the wall patch, so that I do not need to...

15 April 2024 9,059 3 View

How to improve RPL objective function? by implementing new designed metrics in RPL using Contiki/cooja. Can you please explain how to do this?

I'm trying to improve RPL objective function by implementing new designed metrics in RPL using.

03 April 2024 6,710 3 View

Relation between Bulk (Mean) and Friction Reynolds Number??

Is there any specific relation between Re_b (bulk/ Mean Reynolds number) and Re_\tau (friction Reynolds Number). In few of the literature and experimental work I have gone through researchers give...

01 April 2024 861 5 View

Why are the iterations needed to calculate final converged value of Yplus for wallFunctions in OpenFOAM?

This is a code block from nutWallFunction library in OpenFOAM where in, effective kinematic viscosity ($\nut_w$) at the wall is calculated using resolved field(in case of LES)/ mean field(in case...

04 March 2024 9,548 2 View

Effect of Prandtl on velocity for Natural Convection (Rayleigh Benard)?

When Prandtl number is increased for two cases tested over same Rayleigh number, the peak vertical-velocity decreases as Prandtl is increased. This is questionable to the fact that in general...

11 February 2024 4,196 2 View

How to calculate y+ analytically before the simulation if we have fully developed flow for the Annular pipe (a double wall bounded)?

I have a fully developed pipe flow in with Inner radius (r) and outer radius (R), using pressure driven flow condition due to buoyancy, - (1/rho) dP/dx = g and velocity scaling u* = sqrt ( (-R/...

09 February 2024 3,727 3 View

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Can you recommend me a methodology for a research paper on Nature-Based Tourism, specifically focusing on Natural Parks?

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