pressure coefficient การใช้

• If one body locally displays a negative pressure coefficient, the intersecting body should have a positive pressure coefficient.
• If one body locally displays a negative pressure coefficient, the intersecting body should have a positive pressure coefficient.
• The wind pressure coefficients for the walls of the building vary also with wind direction which changes throughout the year.
• Liddament, and CIBSE, provide approximate wind pressure coefficient data for low rise buildings ( up to 3 storeys ).
• In many situations in aerodynamics and hydrodynamics, the pressure coefficient at a point near a body is independent of body size.
• The pressure difference ( ? p ) has thus been replaced with ( F / L ^ 2 ) in the pressure coefficient.
• Among other academic writings, he formulated concepts such as that of A and B pore water pressure coefficient which is still widely used today.
• Stagnation pressure minus freestream static pressure is equal to freestream dynamic pressure; therefore the pressure coefficient C _ p at stagnation points is + 1.
• The popularity of the crossflow fan in the HVAC industry comes from its compactness, shape, quiet operation, and ability to provide high pressure coefficient.
• Dimensional analysis is used to re-arrange the units to form the Reynolds number ( R _ e ) and Pressure coefficient ( C _ p ).
• For a square plan building on an exposed site with the wind blowing directly on to the face of the building the wind pressure coefficients are as shown in Fig 8.
• For a case of an incompressible but viscous fluid, this represents the " profile " pressure coefficient, sinceitis associated to the pressure hydrodynamic forces rather than to the viscous ones.
• Where u is the flow speed at the point at which pressure coefficient is being evaluated, and Ma is the Mach number : the flow speed is negligible in comparison with the sound speed.
• The maximum stable value of K is called the passive earth pressure coefficient, K p; the passive earth pressure would develop, for example against a vertical plow that is pushing soil horizontally.
• The minimum stable value of K is called the active earth pressure coefficient, K a; the active earth pressure is obtained, for example, when a retaining wall moves away from the soil.
• In the fluid flow field around a body there will be points having positive pressure coefficients up to one, and negative pressure coefficients including coefficients less than minus one, but nowhere will the coefficient exceed plus one because the highest pressure that can be achieved is the stagnation pressure.
• In the fluid flow field around a body there will be points having positive pressure coefficients up to one, and negative pressure coefficients including coefficients less than minus one, but nowhere will the coefficient exceed plus one because the highest pressure that can be achieved is the stagnation pressure.
• Consequently an engineering model can be tested in a wind tunnel or water tunnel, pressure coefficients can be determined at critical locations around the model, and these pressure coefficients can be used with confidence to predict the fluid pressure at those critical locations around a full-size aircraft or boat.
• Consequently an engineering model can be tested in a wind tunnel or water tunnel, pressure coefficients can be determined at critical locations around the model, and these pressure coefficients can be used with confidence to predict the fluid pressure at those critical locations around a full-size aircraft or boat.
• :You may be able to get an approximation ( e . g . water will flow through a hole at a rate determined by pressure based on its pressure coefficient ) but in the case of water lines, you don't have any way to account for friction or restrictions upstream.