It is known that the solver only takes the value of gauge pressure only when the flow is subsonic.
So what should be the value for gauge pressure??
Should it be ambient pressure?
I observed in some manuals and websites for performing transient simulation in Fluent that UDF (sinusoidal profile of pressure) has been used at the pressure outlet of the domain. Is it necessary...
10 November 2019 5,356 4 View
I am simulating a transient supersonic flow in CD nozzle. After the flow has evolved, the solution is reaching steady-state. What might be the reason the reason for it? It seems that with each...
04 May 2019 7,366 17 View
I am doing transient simulation of compressible flow over forward facing step. The pressure ratio maintained is 5.5 bar. Whether it is k-epsilon or k-omega it is diverging only when the low mach...
10 November 2018 2,877 10 View
I want to have a time variation of pressure at the outlet, maybe sinusoidal to do unsteady simulation of compressible flow in nozzle. Could you please share the unsteady_compressible.zip file...
01 January 1970 7,997 2 View
When I conducted the degassing experiment using decompression under anaerobic condition(and I used ferrous based chelating agent), the oxidized ferric were observerd. So, could you tell me the...
03 March 2021 4,892 5 View
We use reactive sputtering process to make aluminum nitride film, and want to make c-axis aluminum nitride film on a silicon substrate, but the crystal orientation cannot be seen with...
03 March 2021 7,975 3 View
We found tests to determine cardiovascular risk taking into account lipid profile, blood pressure, age, history of diabetes, other laboratories. But when weight is involved, there is a paradox. I...
02 March 2021 6,036 1 View
Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...
02 March 2021 4,910 3 View
(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...
02 March 2021 3,309 2 View
I am using a Sutter electrode holder for my patch clamp experiments, but I'm having trouble keeping positive pressure inside my electrode due to a leak out of the back of the holder. I have added...
02 March 2021 5,829 1 View
Hi, I am trying to figure out which test would be most appropriate to run for the following question: Is there a difference in task blood pressure between smokers and non-smokers? There are two...
01 March 2021 8,235 2 View
I am simulating Heat Exchanger. I have tried and tested all the methods to resolve this issue from the internet like refining mesh, improving skewness and orthogonal quality ,extending outlet to...
01 March 2021 6,985 3 View
I have been trying to simulate heat transfer problem in Comsol 5.5 for long time but it always throw an error stating: "Failed to find a solution. Maximum number of Newton iterations...
28 February 2021 8,626 3 View
I am interested in evaluating mesh optimization solvers that converge to high aspect ratio unstructured hexahedral grids. In other words, I am interested in a solver that optimizes warpage,...
26 February 2021 7,279 2 View