c*******n
发帖数: 1648 | 1 Suppose I have a shear thinning liquid flowing in a complex geometry
as a pressure flow。Is the viscosity the same everywhere regardless diff。
shear rate everywhere？How to justify this from math？
Furthermore，if I have two components in the flow，
one is more viscous than the other， how to justify the less viscous one
always goes to high shear rate region？THANK YOU！ |
s*i
发帖数: 5025 | 2 If it is Newtonian material, its viscosity is constant.
【在 c*******n 的大作中提到】
: Suppose I have a shear thinning liquid flowing in a complex geometry
: as a pressure flow。Is the viscosity the same everywhere regardless diff。
: shear rate everywhere？How to justify this from math？
: Furthermore，if I have two components in the flow，
: one is more viscous than the other， how to justify the less viscous one
: always goes to high shear rate region？THANK YOU！
|
s*i
发帖数: 5025 | 3 I think it is easy to understand that low viscosity component will flow faster,
because that requires less energy to do so.
【在 c*******n 的大作中提到】
: Suppose I have a shear thinning liquid flowing in a complex geometry
: as a pressure flow。Is the viscosity the same everywhere regardless diff。
: shear rate everywhere？How to justify this from math？
: Furthermore，if I have two components in the flow，
: one is more viscous than the other， how to justify the less viscous one
: always goes to high shear rate region？THANK YOU！
|
c*******n
发帖数: 1648 | 4 No, I meant shear thinning pressure flow【 在 sui ()() 的大作中提到: 】 |
c*******n
发帖数: 1648 | 5 The less viscous component actually goes to low velocity region near the
wall in pressure flow in a pipe, where shear rate is high.【 在 sui ()() 的大作中提到: 】 |
a***a
发帖数: 974 | 6 Are you talking about multicomponent injection molding?
大作中提到: 】
faster,
diff。
【在 c*******n 的大作中提到】
: The less viscous component actually goes to low velocity region near the
: wall in pressure flow in a pipe, where shear rate is high.【 在 sui ()() 的大作中提到: 】
|
h****l
发帖数: 7290 | 7 There are laminar viscosity and Turbulence viscosity.
Laminar viscosity is the same everywhere, but turbulence one
is not, it related to flow condition.
【在 c*******n 的大作中提到】
: No, I meant shear thinning pressure flow【 在 sui ()() 的大作中提到: 】
|
