Qhov ntsuas kub ntawm qhov viscosity ntawm Newtonian kua yog xws li qhov viscosity txo qis nrog qhov kub thiab txias, thiab feem ntau, qhov viscosity siab dua, qhov ntau dua qhov txo qis nrog qhov kub thiab txias.. … Lub viscosity ntawm cov kua yuav luag ib txwm nce nrog lub siab, nrog rau dej yog ib qho kev zam.
Newtonian kua cuam tshuam los ntawm dab tsi?
A Newtonian kua yog ib qho uas nws viscosity tsis cuam tshuam los ntawm tus nqi shear : tag nrho lwm yam sib npaug, ntws nrawm lossis tus nqi shear tsis hloov lub viscosity. Cua thiab dej yog ob qho tib si Newtonian kua. Qee cov kua, c txawm li cas los xij, muaj viscosities uas hloov nrog tus nqi ntawm shear.
Puas tsis yog-Newtonian kua tsuas cuam tshuam los ntawm qhov kub thiab txias?
Newton tau piav qhia tias 'ib txwm' cov kua lossis cov kua dej coj li cas, thiab nws pom tias lawv muaj viscosity tas li (ntws). Qhov no txhais tau hais tias lawv tus cwj pwm ntws los yog viscosity nkaus xwb hloovnrog kev hloov pauv ntawm qhov kub thiab txias.
Dab tsi cuam tshuam rau Newtonian kua viscosity?
Txoj Kev cuam tshuam rau viscosity
- Ib yam khoom ntws tus cwj pwm nyob ntawm peb yam: Cov khoom nyob hauv - molecular - qauv. …
- Flow Conditions - Laminar lossis Turbulent. …
- Qhov zoo tshaj plaws viscous lossis Newtonian Liquids. …
- Kub cuam tshuam rau viscosity: …
- Tus cwj pwm ntws ntawm dej hauv qhov siab.
kub li cascuam tshuam Oobleck?
Oobleck txav qeeb dua thaum siv zog lossis siab dua. Lwm cov kua dej uas tsis yog-Newtonian yog ketchup, tshuaj txhuam hniav, thiab pleev xim. Hauv cov kua Newtonian li niaj zaus, viscosity (tsis kam mus rau kev txav) yog qhov tsis tu ncua thiab tsuas yog hloov pauv yog tias qhov ntsuas kub hloov pauv. Oobleck teb sai npaum li cas thiab siv zog npaum li cas.
