Is it always better to use friction values in inundation modeling, even when we have high-resolution DEM, where rough surface changes are detailed?

I am aware of computational costs while working with high resolution data, so this question is more of hypotetical nature and is related to the relevance of friction parameter in inundation...

23 June 2020 2,172 2 View

How to produce and use multi-resolution grid (a mixture of high and coarse resolution on the same raster image) in ArcGIS or any GIS software ?

It seems impossible since most of analyses are based on 3x3 cell neighborhood but I would like to hear your experiences. I know that some hydrodinamical models like TELEMAC are able to perform...

18 May 2020 6,177 7 View

How to obtain the Strain Energy Release Rate from a fatigue Analysis on Abaqus?

Hi, i'm performing a fatigue analysis based on the Paris law via XFEM using Abaqus. My analysis consist of two steps: in the first one the crack is created by defining a damage criteria (MAXPS) in...

23 July 2018 5,581 3 View

Hi, Do you know a catalyst for the formation of cristobalite starting from fused amorphous silica powders? Thank for any answers gentlemen..

I'm finding a powder that can improve the formation of cristobalite at low temperature when I start from pure silica powders. Can you help me? Thank for any answers gentlemen..

24 January 2017 7,619 12 View

Is the virial stress defined in the Euler or Lagrange description ?

It is interesting by the determination of the atomic pressure in solids. I read some paper about the viral stress which was introduced by Lutsko (J. Appl. Phys. 64 (3), 1988) using the local...

27 October 2016 3,215 1 View

A questionarre for all DEM users. What are your practices in digital terrain modelling ?

13 October 2016 3,647 3 View

What is the problem with my fluorescence anisotropy method?

I am trying to develop a method to define protein binding to molecularly imprinted polymers. The method in brief: I am labelling my protein with FITC and then I add my MIP, and during incubation I...

04 October 2016 338 5 View

I kindly ask all DEM USERS to complete this form, as a part of my master thesis (Just click on question, and the LINK will appear) ?

28 September 2016 6,084 10 View

Can you suggest some very effective chemical solvents for a wax dissolution (this wax is rich in paraffins)?In this case, can you suggest some papers?

I need to dissolve this wax at room temperature, if is possibile. Or without increase the temperature up 30-35 celsius degrees. This wax is rich in paraffins, and it have a melting temperature...

20 September 2016 5,574 3 View

How to evaluate DEM accuracy by analysing cell size suitability ?

I am introduced with methods for determining the right cell size according to sample characteristics and with visual validation of DEM resolution suitability, but is there any statistical...

06 June 2016 1,389 7 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

How climate change will influences human and animal behavioral change?

The role of climate change influencing the human behavior as well as economics interest

01 June 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View