ESS227
Prof. Jin-Yi Yu
Conservation
Law of Momentum
•The conservation law for momentum (Newton’s second law
of motion) relates the
rate of change of the absolute momentum following the motion in an inertial reference frame to
the sum of the forces acting on
the fluid.
Newton’s 2nd Law
of Momentum
=
absolute velocity viewed in an inertial system
=
rate of change of Ua
following the motion in an inertial system