What is radial direction? Axial is the direction along the long axis of the wood, radial is the direction along a radius of the circular trunk cross-section, and tangential is the direction that is at right angles to the radial direction.
What is stagnation condition?
The thermodynamic state which would exist at a point in a fluid stream (stagnation point) if the flow at that point was brought isentropically to rest.
What is tangential direction?
In geometry, a tangent is a line that touches a curve in one spot but doesn’t intersect it anywhere else. Tangential means something that goes off in one direction that way and doesn’t return.
What is longitudinal direction?
That direction parallel to the direction of maximum elongation in a worked material. See also normal direction and transverse direction.
What is difference between radial and axial flow?
“Axial” refers to the direction of flow produced by the impeller. The axial flow turbine is used with medium viscosity fluids. … The radial turbine blades are welded to the hub with the blade surfaces parallel to the shaft. Therefore, this impeller pumps liquid sideways from the shaft outward to the tank walls.
What causes a stagnation point?
In fluid dynamics, a stagnation point is a point in a flow field where the local velocity of the fluid is zero. … Total pressure is also equal to dynamic pressure plus static pressure so, in incompressible flows, stagnation pressure is equal to total pressure.
How do I check my stagnation points?
Given a velocity field, we can find possible stagnation points by equating the velocity components to zero and solving for x and y .
Why is stagnation state important?
The stagnation temperature is important because it is the temperature that occurs at a stagnation point on the object. Because the total temperature does not change through a shock wave, the stagnation temperature and and the total temperature have the same value at a stagnation point.
What is the direction of tangential velocity?
Tangential velocity is the component of the motion along the edge of a circle measured at any arbitrary point of time. As per its name, tangential velocity describes the motion of an object along the edge of the circle, whose direction at any given point on the circle is always along the tangent to that point.
What direction is angular acceleration?
angular acceleration (rotational acceleration)
It is a vector quantity, consisting of a magnitude component and either of two defined directions or senses. … The direction of the angular acceleration vector is perpendicular to the plane in which the rotation takes place.
Does tangential acceleration have direction?
In circular motion, a tangential acceleration can change the magnitude of the velocity but not its direction.
Is longitudinal vertical or horizontal?
As adjectives the difference between horizontal and longitudinal. is that horizontal is perpendicular to the vertical; parallel to the plane of the horizon; level, flat while longitudinal is relating to length, or to longitude.
What is lateral and longitudinal direction?
Lateral – spanning the width of a body. … Longitudinal – spanning the length of a body. Orthogonal – at a right angle (at the point of intersection). Parallel – in the same direction.
Is longitudinal up and down?
Examples of transverse waves include vibrations on a string and ripples on the surface of water. We can make a horizontal transverse wave by moving the slinky vertically up and down. In a longitudinal wave the particles are displaced parallel to the direction the wave travels.
Which one is radial flow impeller?
Radial flow impellers create a side-to-side fluid motion that produces high shear rates and a relatively low pumping number. They’re suitable for use low-level mixing and elongated tanks, among other applications.
What is the radial flow?
Radial flow pumps are centrifugal pumps at which the fluid handled leaves the impeller in a radial direction. The radial outward movement of the flow (see Flow rate) in the impeller causes higher centrifugal forces, which translate into higher discharge pressures but typically smaller volume flow rates.
What is meant by axial-flow?
: having the fluid or gas flowing parallel to the axis axial-flow turbine axial-flow pump — compare radial-flow.
What is the characteristic of stagnation point?
At a stagnation point the speed of the fluid is zero and all of the kinetic energy has been converted to internal energy and is added to the local static enthalpy. Explanation: In compressible and incompressible kind of flow, the stagnation temperature is equal to the total temperature.
Can stagnation pressure increase?
Transport equations apply to compressible flow of calorically perfect, ideal gas. Stagnation pressure is shown to be capable of naturally or artificially increasing.
What is stagnation head?
Stagnation head : Sum of piezometric head and velocity head. 4. Total head : Sum of piezometric head and dynamic head.
What is stagnation temperature and pressure?
In thermodynamics and fluid mechanics, stagnation temperature is the temperature at a stagnation point in a fluid flow. … In both compressible and incompressible fluid flow, the stagnation temperature is equal to the total temperature at all points on the streamline leading to the stagnation point.
What is static pressure and stagnation pressure?
The pressure at a point in a fluid is called the ‘static pressure’. The ‘stagnation pressure’ is the pressure that the fluid would obtain if brought to rest without loss of mechanical energy.
What is stagnation line?
The front stagnation line is a certain distance behind the leading edge; the rear stagnation line is the same distance ahead of the trailing edge. This airflow pattern produces no lift.
What increases tangential velocity?
The idea that the tangential velocity increases as the radius increases makes sense, because given a rotating wheel, you’d expect a point at radius r to be going faster than a point closer to the hub of the wheel. A ball in circular motion has angular speed around the circle.
What is the direction of centripetal acceleration?
The acceleration is directed radially toward the centre of the circle. The centripetal acceleration ac has a magnitude equal to the square of the body’s speed v along the curve divided by the distance r from the centre of the circle to the moving body; that is, ac = v2/r.
Is Omega angular velocity?
In physics, angular velocity refers to how fast an object rotates or revolves relative to another point, i.e. how fast the angular position or orientation of an object changes with time. … Angular velocity is usually represented by the symbol omega (ω, sometimes Ω).
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