Roh Dargahi

6 Questions 20 Answers 0 Followers

Questions related from Roh Dargahi

How to find/calculate the activation energy from this constant (in Arrhenius equation) ?

Guys, I've seen the Modified Arrhenius equation in several forms. For instance, three kinds are attached. Please consider the first attachment. There is an activation energy (Er). In some cases,...

09 September 2019 9,054 24 View

How to export the data from this graph (velocity profile)?

Guys, I'm reading this Article: https://www.researchgate.net/publication/229399613_A_comparative_study_of_turbulence_models_performance_for_turbulent_flow_in_a_plane_asymmetric_diffuser You can...

08 August 2019 9,279 9 View

Could any fuel burn in any kind of combustion (detonation, deflegration, transient)?

Thinking that if any fuel could burn in any kind of combustion. Is it possible in real and or theoretically? how can you show it? how to find the ambient parameters to do it? e.g. H2 and O2 in...

02 February 2019 8,268 3 View

Need experimental measurement of a turbofan engine to use for validation?

Caio! After a day diging the net to find an experimental measurement of a turbofan engine nozzle (pressure distribution, Mach distribution or etc) just found this AGARD...

01 January 2019 2,520 3 View

Tell us your experience on stiffness of solution for chemical reaction modeling?

Sometimes we hear somethings on stiffness problem of solution for chemical reaction modeling. https://en.wikipedia.org/wiki/Stiff_equation There is an option in Fluent software to figure it...

01 January 1970 1,373 3 View

Why do/es a residual/residuals start from a big non-zero magnitude sometimes?

Guys, Sometimes after initializing the problem in Fluent and triggering the calculate button, a residual/residuals start from a big non-zero magnitude. For instance, to me, it in many cases...

01 January 1970 9,506 9 View