Kourosh Vaferi

13 Questions 25 Answers 0 Followers

Questions related from Kourosh Vaferi

What is the value of shear-wave speed in CTC cells (such as MCF-7) and human blood cells?

What is the value of shear-wave speed in CTC cells (such as MCF-7) and human blood cells? Considering the soft body of these cells, it can be said that this parameter is close to zero for these...

12 July 2025 4,493 3 View

How we can understand that flow regime in Buoyancy-driven flow is turbulent?

How we can understand that flow regime in Buoyancy-driven flow is turbulent? I use the Rayleigh number to identify this issue and consider a Rayleigh number higher than 10^9 to be turbulent...

18 December 2024 5,562 16 View

What is the critical Capillary Number in a microchannel?

What should be the Capillary Number obtained for water flow inside a silicone microchannel so that we can ignore the Capillary Effect in this study? My study investigated forced flow with...

22 January 2024 2,799 4 View

How can I calculate the characteristic length used in Rayleigh number for a PCM-heatsink with fins?

I want to calculate Rayleigh number and Nusselt number of a PCM-heatsink to analyze the intensity of the natural convection of PCM. There are some fins inside my heatsink to enhance the heat...

10 August 2023 9,764 4 View

Do obstacles in a channel change the regime from laminar to turbulent while the Reynolds number is under 2300 (approximately 1000)?

Do obstacles in a channel change the regime from laminar to turbulent while the Reynolds number is under 2300 (approximately 1000)? Please introduce related studies.

07 May 2023 1,397 15 View

What is the meaning of this error in COMSOL, "Expression: (comp1.fpt.Ftx-d(comp1.qx,t)*d(comp1.fpt.mp,t))/comp1.fpt.mp"?

I used five physics in COMSOL, including "Solid Mechanics", "Electrostatics", "Pressure Acoustics, Frequency Domain", "Laminar Flow", and "Particle Tracing for Fluid Flow" to simulate the effect...

06 March 2023 8,433 0 View

How can I simulate mixing two different fluids with COMSOL Multiphysics software?

I want to simulate mixing two fluids with different inlets and velocities in COMSOL. I used "Laminar Flow" and "Transport of Diluted Species" physics to do it, and my problem is that I cannot...

03 March 2023 8,047 5 View

Can anyone introduce sources for geometrical dimensions of a modern gas turbine stator blade with an internal cooling system?

02 December 2019 1,226 2 View

Can we use (X = 0.05 ×D ×Re ) to find the developed area of flow inside the spiral tube?

To find the developed area of flow inside the tube we use the empirical relation (X = 0.05 ×D ×Re ). Can we use this relation to find the position of the developed flow inside the spiral tube?

06 August 2019 8,106 4 View

Practically in the gas turbines, does corrosion occur more often in the stator blades or the rotor blades?

03 August 2019 8,876 8 View

What is the difference between the modulus of compression and the compressive strength of a material ?

I want to know more about material properties.

04 July 2019 7,255 6 View

Are materials with high or low thermal conductivity used in the construction of gas turbine blades?

Generally, for blades materials that have high thermal conductivity two discuss are expressing: 1- High thermal conductivity reduces turbine gas inlet energy and consequently reduces...

01 January 1970 9,548 8 View

Lift force in airfoil

When discussing the force of lift in airfoil, we say that molecules come to upper and lower sides of the airfoil must reach each other to the end of airfoil, due to the longer distance of the...

01 January 1970 685 5 View