stagnation point वाक्य
उदाहरण वाक्य
मोबाइल
- In fluid dynamics, a "'stagnation point "'is a point in a flow field where the local velocity of the fluid is zero.
- Total enthalpy is the same at every point in a flow field so the stagnation enthalpy at a stagnation point is identical to the total enthalpy everywhere in the flow field.
- Wind tunnel studies have shown that, in a step-up canyon where the upwind building is shorter, a stagnation point can be identified on the windward face of the taller building.
- These are also known under the name of " edge flames ", characterized by a local extinction on their axis because of the high strain rates in the vicinity of the stagnation point.
- A parcel of air which approaches the airfoil along the stagnation streamline is cleaved in two at the stagnation point, one half traveling over the topside and the other half traveling along the underside.
- If the fluid flow at some point along a streamline is brought to rest, this point is called a stagnation point, and at this point the total pressure is equal to the stagnation pressure.
- In this case the air blow slit is located at the pressure side near the leading edge stagnation point location and the control air-flow is directed tangentially to the surface but with a forward direction.
- As the air passing the underside of the airfoil reaches the trailing edge it must flow around the trailing edge and along the topside of the airfoil toward the stagnation point on the topside of the airfoil.
- The spanwise flow on swept wings produces airflow that moves the stagnation point on the leading edge of any individual wing segment further beneath the leading edge, increasing effective angle of attack of wing segments relative to its neighbouring forward segment.
- This distinctive pyramid shape not only kept the aerodynamic " stagnation point " low but also neatly allowed the incorporation of a " crushable structure " as required by the 1973 regulations which specified that all fuel tanks were to be protected by deformable structures.
- If an airfoil with a sharp trailing edge begins to move with a positive angle of attack through air, the two stagnation points are initially located on the underside near the leading edge and on the topside near the trailing edge, just as with the cylinder.
- Over the years, he began to test different shapes, materials, and compositions until he discovered in 2002 that a ball could bounce more efficiently than other balls on water if it was soft and had a Lycra covering which enables easy flow separation at the hydrodynamic stagnation point.
- In the first moments after exiting the launch tube, the heating rate with an optimal nose shape is around 30 kW / cm 2 at the stagnation point, though much less over most of the nose, but drops below 10 kW / cm 2 within a few seconds.
- Experimental observations show that the stagnation point ( one of two points on the surface of an airfoil where the flow speed is zero ) begins on the top surface of an airfoil ( assuming positive effective angle of attack ) as flow accelerates from zero, and moves backwards as the flow accelerates.
- :: : : Total pressure exists everywhere, and stagnation pressure only exists at stagnation points, but total pressure and stagnation pressure are equal ( except in the vicinity of shock waves . ) Seeing total pressure and stagnation pressure are equal, many authors who write about incompressible flows, and low speed flows, don't complicate things by talking about total pressure.
- The Bernoulli equation applicable to incompressible flow shows that the stagnation pressure is equal to the dynamic pressure plus static pressure . " Total pressure " is also equal to dynamic pressure plus static pressure so, in incompressible flows, stagnation pressure is equal to total pressure . ( In compressible flows, stagnation pressure is also equal to total pressure providing the fluid entering the stagnation point is brought to rest isentropically .)
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