What eqn does comsol use to get the pressure profile?

Hi all, Does COMSOL use pressure poisson equation to get pressure profile? Thanks vivek

31 December 2015 7,564 1 View

Solving dimensionless equations in COMSOL?

11 December 2015 7,804 15 View

Information relating to COMSOL solver?

Hi, I am using COMSOL software. I am having some problem understanding different parameters while using PARDISO linear system solver. What is pivoting perturbation? and why preordering algorithm...

11 December 2015 9,386 0 View

Any suggestions on a COMSOL Generalized alpha discretization scheme ?

Hi, Can anyone please tell me the numerical schemes used in generalized alpha scheme? Thanks Vivek

11 December 2015 8,221 0 View

RTD and mixing in plug flow or in continuous reactor?

Hi all, This is going to be a purely chemical engineering thing. We know that in ideal reactor, space time (Holding time) is the tideal=Volume of reactor/Volumetric flow rate. But real reactor...

06 July 2015 1,314 21 View

Any suggestions on the formation of bigger and smaller eddies in turbulent medium?

06 July 2015 5,866 69 View

Anyone familiar with convergence and under relaxation factors in fluent?

Hi , This is in relation to the effect of under relaxation factor on solution convergence.I have learned that if relaxation factors are reduced, then it takes huge time to reach the...

06 July 2015 9,708 7 View

What is the relation between viscous force and the inertial force?

Hi all, We all have regularly heard of the terms like viscous force and the inertial force. Now the viscous forces are the forces due to to the friction between the the layers of any real fluid....

06 July 2015 2,702 22 View

Finite element method?

04 May 2015 5,406 3 View

Anyone familiar with nodes and volume elements in fluent meshing CSTR?

04 May 2015 3,698 8 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature)?

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature-based reflection)? Thank you for your time and for...

03 March 2021 2,870 3 View

What degree of missing data in a particular case/participant results in Expectation-Maximisation no longer working?

I'm dealing with a mediation model and am using the PROCESS module in SPSS. Due to SPSS and PROCESS being limited in the imputation methods - being unable to handle multiple imputation - the other...

02 March 2021 4,362 1 View

Can NFL theorem be valid in infinite search space in ML?

NFL theorem is valid for algorithms training in fixed training set. However, the general characteristic of algorithms in expanded or open dataset has not been proved yet. Could you show your...

01 March 2021 1,189 3 View

Does anyone know how to plot my station to a section plot on Ocean Data View (ODV)?

I made a vertical section plot with WOA .nc file on ODV, and now I want to plot my stations (csv. file) in it. Does anyone know how to import my points to the section? They are two different...

01 March 2021 3,610 1 View

Timeout error!! Processor in the loop (PIL) using STM32F4 Matlab 2018a?

Dear Researchers I am trying to perform a PIL simulation using STM32F4 Discovery board and comunication serial USB TO TTL. During simulation I receive the following timeout error: An error...

01 March 2021 2,327 1 View

How to address this issue in the analysis of Real-Time PCR results?

To dear Researchers, I was analyzing a series of concentration for estimation of Real-Time PCR efficiency. The concentration was 1:10. I used MS-excel to evaluate Slope. The result of slope was -8...

01 March 2021 8,683 4 View

How to model the battery pack in PSIM or PSCAD?

Hello, I have simulated a single battery cell using Thevenin equivalent circuit. For a battery pack, I have a large number of cells connected in series and parallel connections. Is there any way...

28 February 2021 2,116 1 View