Question

1. Fill in the missing letters in the expression that follows, where T represents temperature and subscripts M and S refer to material and spatial coordinates, respectivel;y State, in words, the meanng of this expression 2. State the most general form of the local equation of conservation of mass Write the form that expresses this principle for incompressible flow

Fluid Mechanics - Local, spatial, Material derivative state the meaning of the expression for 1) state the most general form of the local equation of conservation of mass, write the form of incompressible flow for 2)

Answer 1

Consesvation d, mass Ccontinuity equation The louw d consesvation d mass stes that mass in anted system is nerthex cxeated nov deātkoye b cheical seaeae Physical tsanst omalions. US According to lawdconsexvation dmass the mass ol the sustem must xemain consto ovex time,as sysTem'smass cannot chonge cannor be added nos semoved 2 C S mass in CV mOSS CV= Control volume CS ostrolSuYtace dA: Contsol sus?ace area element dV- Contsol volme elemen