Although kinematics and dynamics are most used in classical mechanics you can extend the idea to quantum mechanics where the kinematics are described by the phase space and operators, while the dynamics is the evolution under the influence of a given Hamiltonian.

You can always decompose a motion like this into two parts: (1) rolling without slipping and (2) slipping without rolling. What is slipping without rolling? It means the object moves uniformly in one direction along the surface, with no angular velocity about the object's own center of mass. For instance, a box that is pushed along the ground can easily slip without rolling. …

In fluid dynamics, advection is a type of convection, with the other type of convection being diffusion. Both advection and diffusion act to move around various intensive properties of a fluid.

The physical meaning of it, in the context of fluid dynamics in 2-D or 3-D, is that it has the units (m / s)2 which when multiplied by the density of a fluid represents some form of energy.

Oct 5, 2013 · I've wondered about this for ages. If we create a pair of flywheels that rotate in the opposite direction with the same angular momentum, but are co-located and have the same mass and inertial mom...

Jul 22, 2020 · I'm trying to understand the equation of motion for rigid body dynamics in the presence of a quaternion joint for the root of a humanoid robot. But the dimensionality inconsistency issue is confusi...

May 28, 2018 · I am trying to understand why polar coordinates accelerations in the theta and r directions cannot be interchanged for the normal and tangential components of acceleration. I am currently doing a dynamics course where we will have …

I have tried to explore the information but still not very clear on the exact difference between diffusion, convection and advection. Can anyone help me out to clear my concept?

The "theory" is all rules of thumb and its a mad mishmash of cookbook physics and mathematical abuse. This of course is owing to the mathematical complexity - the existence of the Clay mathematics prize shows how much we really know about deep fluid dynamics (although numerical models are getting very good).

The ratio of the inertial force to the viscous forces of the fluid is known as the Reynolds number. Now the viscous forces are the forces due to to the friction between the the layers of any real fluid. In fluid mechanics we take the fluid as in the continuum condition, which means fluid particles are very closely packed so necessarily there is friction between layers of fluid. The inertial ...