Daud Hasan

4 Questions 1 Answers 0 Followers

Questions related from Daud Hasan

What is the physical significance of using wall shear stress to define a friction velocity?

In turbulent flow, what is the physical significance of using wall shear stress to define a friction velocity and then normalize the velocity parameter using this friction velocity?

20 September 2025 9,116 4 View

How to plot streamlines with arrowheads in tecplot for a 2d enclosed cavity flow?

I can use poisson's equation to get streamline contours from comsol, but cannot get arrowheads for the streamlines. When i use the streamline feature of comsol, the streamlines are not smooth. I...

07 May 2024 9,402 1 View

What would be the volume force and magnetic boundary conditions in the Magnetohydrodynamics interface in COMSOL for a simple square cavity?

The cavity is subjected to uniform petition of a magnetic field in the x direction.

08 March 2024 7,664 1 View

How to determine friction factor for pipe flow in Ansys fluent?

I determined the area weighted average pressure drop between inlet and outlet and used ((2*dell_p*D)/(L*rho*velocity ^2)) to determine friction factor. But the results do not match the expected...

13 September 2023 9,518 3 View