What are momentum fluxes?

The vertical flux of horizontal momentum, equal to the force per unit area, or stress. For turbulence, the momentum flux is also called the Reynolds stress. For waves, it is related to mountain wave drag.

What is momentum and its unit?

Momentum. If the mass of an object is m and it has a velocity v, then the momentum of the object is defined to be its mass multiplied by its velocity. momentum= mv. Momentum has both magnitude and direction and thus is a vector quantity. The units of momentum are kg m s−1 or newton seconds, N s.

What is the basic unit for momentum?

The unit of momentum is the product of the units of mass and velocity. In SI units, if the mass is in kilograms and the velocity is in meters per second then the momentum is in kilogram meters per second (kg⋅m/s).

What are the units of mass flux?

Mass flux is defined as the contaminant mass moving across a unit area of porous media (aquifer) perpendicular to the groundwater flow direction and has units of mass/area/time (typically g/m2/day).

Is NS a unit of momentum?

The newton-second (also newton second; symbol: N⋅s or N s) is the derived SI unit of impulse. It is dimensionally equivalent to the momentum unit kilogram-metre per second (kg⋅m/s). One newton-second corresponds to a one-newton force applied for one second.

What is momentum What is its unit class 9?

The magnitude of the momentum is equal to P=mv. Since momentum is a product of the mass and velocity, its unit is the product of units of mass and the velocity. Therefore, the unit of momentum is kgms−1.

Which is not a unit of momentum?

Oddly, momentum has no unit with any special name. In SI units, it’s the kilogram-meter per second, or equivalently, the Newton-second. In the CGS system, it’s the gram-centimeter per second, or equivalently, the dyne-second.

What is molecular flux?

Molecular flux Φ is defined as the number of molecules dN crossing a unit surface in one direction during a unit of. time. For instance, molecular flux determines the rate of molecules striking the wall or exiting the container through. a small orifice in the wall (effusion).

What is flux in chemical engineering?

property>mass flux Mass flux is the rate of flow of mass through a unit area perpendicular to the flow. In chemical engineering the mass flux is important where there is a flow through a porous medium such as a filtration system.

Is diffusive momentum flux in the direction of convective momentum flux possible?

Momentum diffusion most commonly refers to the diffusion, or spread of momentum between particles (atoms or molecules) of matter, often in the fluid state. This transport of momentum can occur in any direction of the fluid flow.