Thanks.
I am modelling porous medium combustion in FLUENT with a separate energy equation for the fluid and the solid zone. Since the temperature of the solid region is quite high (around 1200 K),...
01 February 2014 2,769 4 View
I wish to represent physical phase boundaries in a porous structure on a mesh. It seems to be quite simple to get a porous structure with the desired porosity by mere random allocation of solid...
31 December 2013 4,627 1 View
I'm trying to simulate combustion through an inert porous block. I was able to complete the simulation assuming local thermodynamic equilibrium between the solid and the fluid but since this would...
09 October 2013 1,395 3 View
Should I use th = acos(r) or th = acos(sqrt(r)) where r is a random number between 0 and 1. 'th' is the angle of the ray from the normal to the surface.
08 September 2013 4,896 5 View
Is there a way to relate spectral absorption coefficient and emissivity of an individual soot particle?
08 September 2013 3,924 2 View
I am currently doing my third year design project. I have been assigned to design a glycerol recovery column in vinyl acetate monomer production. The process unit before the recovery column is an...
01 March 2021 9,525 4 View
I am a little confuse with the mechanism of solid lipid nanoparticles (SLNs). The main point of encapsulating drugs into SLNs is because some drugs have low solubility in water. Therefore, SLNs...
01 March 2021 3,703 3 View
When explaining substitution models, the substitutions are expressed as Q matrix. Why is the sum of the elements in a row zero?
28 February 2021 3,864 3 View
Hello, I spin-cast two different polymers onto wafers and measure their height as a function of initial concentration. For polymer A, I have the weight-average molecular weight (Mw) as well as...
28 February 2021 7,882 2 View
I'm Juan Carlos, a high school student who is working with electropinning, I made an electropinning machine with a 21g needle and a 30kv high voltage source and the distance between my needle is...
28 February 2021 298 3 View
I have a sample of treated water sample & asked to obtain ammonia conc. in sample using a machine with 5-25 ppm detection range. However, upon testing with different dilution factors, all...
27 February 2021 8,483 3 View
Good day to all, I have no experience with light emitting diodes. I am building a glass mini flume to demonstrate the photo degradation of Methylene Blue in water running over self cleaning...
26 February 2021 4,026 5 View
I am trying to find how to know the density needed for a pva electrospinning in a 0.6mm neddle, the electrospinning will be from top to bottom and the problem I really have is the solution because...
25 February 2021 2,615 3 View
The main studies are as follows: * regular and timely receipt of information about the state of the environment using automated systems (stationary and mobile); * operational analysis of the...
23 February 2021 912 5 View
Hi, Some background to my question: I have fitted 1st order multinomial Markov models with covariates. Since all probabiilties (for each row of the transition matrix) sum to 1, I estimate only...
22 February 2021 2,541 4 View
