Recent content by Idrees Afridi

why the researchers are taking Prandtl number of gases and water during the heat transfer analysis of viscoelastic fluids ?

Greetings: the heat transfer analysis of viscoelastic fluid in a circular duct or curved circular duct has been investigated by many researchers and they are taking different Prandtl number without any justification. kindly check the link below and specially see the fig 3 in which the author...

boneh3ad.. kindly give me some examples of viscoelastic fuids with Prandtl numbers..

But gasses are also not viscoelastic fluids then why they are using Prandtl number of gasses .

n the heat transfer analysis of boundary layer flow of viscoelastic fluids many researchers see the variation of temperature of fluid inside the boundary layer with Prandtl number, for which they use prandtl number 0.7, 2 , 3, 4 .. This is what generally the researchers do.. Currently i am...

If i want to discuss the thermal behaviour of viscoelastic fluid then kindly suggest me a suitable Prandtl number . For which i have a justification that why i am taking this Prandtl number ?

Professor thanks... but by taking Pr =0.7 means v r talking about air ... is ve take a air as viscoelastic fluid...

Respected professor i just want to know the examples of viscoelastic fluids with the values of Prandtl number . I saw a lot of articles , where viscoelastic fluids are used with Prandtl number 0.7 , 1 and 3 etc . which are shocking for me because these Prandtl numbers are for air and water and...

thanks a lot .i got my point ,, stay blessed

thanx to guide me but i must ask one thing more that what type of equilibrium u mean ? does it make sense physically ? if yes then how?

currently i am working on momentum and thermal boundary layer so i have few more questions.. i): why the shape of thermal and velocity boundary layer is parabolic? ii):why the thickness of these boundary layers increasing as we move from the leading edge of the flat plate? iii):why the thermal...

I got the point. thanks alot

what does the relation between the temperature gradient inside the thermal boundary and thermal boundary layer thickness i mean what will be the temperature gradient ( high or low) when the thermal boundary layer is thick relative to the thin one? Kindly explain mathematically and physically as...