Rooholamin Dargahi

5 Questions 13 Answers 0 Followers

Questions related from Rooholamin Dargahi

How to model and calculate Transmission Loss of a muffler in COMSOL for frequency range 1-10000?

Guys, I was seeing this video to know how COMSOL can calculate the Transmission Loss of a muffler https://www.youtube.com/watch?v=jrk_9SIn0aw but what about the frequency range between 1-10000?...

30 July 2021 8,041 3 View

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,...

22 September 2019 6,077 25 View

How to calculate the shock angle in a convergent conical duct(funnel duct)?

Guys, As you may know, you can calculate the shock angle of a cone using taylor-maccoll equation for any incoming flow with different Mach number but why there is no way to calculate the shock...

01 January 1970 3,331 1 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 9,520 11 View

How can I get the geometry and pressure or Mach or temperature distribution of an aircraft from an Aircraft manufacturers or other places?

Hello scientific world! I'm working on nozzle optimizing for aircraft jet engines, especially turbofan engines. I need to the engine nozzle geometry of an aircraft plus a parameter distribution...

01 January 1970 4,072 3 View