FMHM-Motion of Fluid Particles

A flow is defined by u = 2 (1 + t), v = 3(1 + t) where t is the time. The velocyity at t = 2 is

• 6
• 9
• 10.2
• 6.7

The value of local acceleration in the x direction for flow with u = 2(1 + t) is given by

• 0
• 2
• T
• 2T

The value of x directional convective acceleration in the case of flow with u = 2 (1 + t) and v = 3 (1 + t) equals

• 0
• 5
• 1
• 5T

A path line describes

• The velocity direction at all points on the line
• The path followed by particles in a flow
• The path over a period of times of a single particle that has passed out at a point
• The instantaneous position of all particles that have passed a point

The continuity equation is the result of application of the following law to the flow field

• First law of thermodynamics
• Conservation of energy
• Newtons second law of motion
• Conservation of mass.

Turbulent flow is unsteady flow.

• true
• Not applicable
• Can't say
• false

A potential function

• constant along a stream line
• is definable if a stream function is available for the flow
• describes the flow if it is rotational
• describes the flow if it is irrotational.

Steady flow is concerned to

• Constant with respect to time
• Constant with respect to distnace
• Constant with respect to accelaration
• Constant with respect to viscosity

Forced vortex flow is_______________

• Naturally generated
• Due to density
• Externally assisted
• Generated due to gravity

The tem compressibility is concerned to _______________

• Viscosity
• Density
• Acceleration
• Velocity