Which is conservative force?
Conservative force, in physics, any force, such as the gravitational force between the Earth and another mass, whose work is determined only by the final displacement of the object acted upon. Stored energy, or potential energy, can be defined only for conservative forces.
Are all conservative forces Central?
In classical mechanics, a central force on an object is a force that is directed towards or away from a point called center of force. Not all central force fields are conservative or spherically symmetric. However, a central force is conservative if and only if it is spherically symmetric or rotationally invariant.
What do you mean by conservation and non conservation?
The work a conservative force does on an object in moving it from A to B is path independent – it depends only on the end points of the motion. For a non-conservative (or dissipative) force, the work done in going from A to B depends on the path taken. Examples: friction and air resistance.
What is a conservation?
Conservation is the care and protection of these resources so that they can persist for future generations. Conservation seeks the sustainable use of nature by humans, for activities such as hunting, logging, or mining, while preservation means protecting nature from human use.
What do you mean by conservation and non conservation form of momentum equation?
Conservation form or Eulerian form refers to an arrangement of an equation or system of equations, usually representing a hyperbolic system, that emphasizes that a property represented is conserved, i.e. a type of continuity equation. The term is usually used in the context of continuum mechanics.
What is conservative flow?
In vector calculus, a conservative vector field is a vector field that is the gradient of some function. Conservative vector fields have the property that the line integral is path independent; the choice of any path between two points does not change the value of the line integral.
What are conservative variables?
The conservative variables for the governing flow equations (Euler, N-S, RANS) are the mass, momentum, and energy, i.e. U = ( density, density*velocity, density*energy)^T.
What is conservative and non-conservative form of equations?
The conservative form derives from expressing the conservation equations in a divergence form, i.e. the equations have the form of local time rate of change + divergence of flux = source terms. The non-conservative form is a form of the equations that is not expressible in this form.
Is the continuity equation is same for finite control volume fixed in space and moving with the fluid?
Explanation: The equation is the non-conservative form of the integral continuity equation. This is obtained from a finite control volume moving along with the flow. 4.
What is the principle of continuity?
Continuity principle, orcontinuity equation, Principle of fluid mechanics. Stated simply, what flows into a defined volume in a defined time, minus what flows out of that volume in that time, must accumulate in that volume.