Match List-I with List-II on fluid types and their rheological characteristics:
(E) Ideal plastic fluid
Choose the correct answer from the options given below:
तरल प्रकारों और उनकी विशेषताओं पर सूची-I को सूची-II से सुमेलित करें:
(E) आदर्श प्लास्टिक तरल / बिंघम प्लास्टिक (Ideal plastic fluid)
नीचे दिए गए विकल्पों में से सही उत्तर चुनें:
|
List - I
|
List - II
|
||
|---|---|---|---|
| A | Ideal fluid Ideal fluid | I | Incompressible and having no viscosity Incompressible and having no viscosity |
| B | Newtonian fluid Newtonian fluid | II | Shear stress is directly proportional to the rate of shear strain Shear stress is directly proportional to the rate of shear strain |
| C | Real fluid Real fluid | III | Shear stress is not proportional to the rate of shear strain Shear stress is not proportional to the rate of shear strain |
| D | Non-Newtonian fluid Non-Newtonian fluid | IV | A fluid which possesses viscosity A fluid which possesses viscosity |
Correct definitions of fluid types in fluid mechanics:
(A) Ideal fluid: A theoretical fluid that is incompressible and has zero viscosity (\(\mu = 0\))\lt /strong\gt \(\rightarrow\) (I).
(B) Newtonian fluid: Obeys Newton's law of viscosity, where shear stress is linearly proportional to shear strain rate (\(\tau = \mu \frac{du}{dy}\))\lt /strong\gt \(\rightarrow\) (II) (e.g., water, air, light oils).
(C) Real fluid: Any actual physical fluid that possesses viscosity (\(\mu > 0\))\lt /strong\gt and exhibits friction \(\rightarrow\) (IV).
(D) Non-Newtonian fluid: Fluid where shear stress is not linearly proportional to shear rate \(\rightarrow\) \lt strong\gt (III)\lt /strong\gt (e.g., paint, starch suspensions, blood). \lt strong\gt (E) Ideal plastic fluid (Bingham plastic)\lt /strong\gt : Does not deform until a definite \lt strong\gt yield stress (\(\tau_0\)) is exceeded, after which shear stress is proportional to shear strain rate \(\rightarrow\) (V) (e.g., toothpaste, sewage sludge).
सही मिलान:
- आदर्श तरल = असंपीड्य एवं शून्य श्यानता (I)
- न्यूटोनियन तरल = कतरनी प्रतिबल, कतरनी विकृति दर के समानुपाती (II)
- वास्तविक तरल = श्यानता युक्त तरल (IV)
- गैर-न्यूटोनियन तरल = कतरनी प्रतिबल विकृति दर के समानुपाती नहीं (III)
- आदर्श प्लास्टिक तरल = प्रारंभिक यील्ड मान से अधिक होने पर समानुपाती (V)