Effect of turbulent inflows on airfoil performance for a Horizontal Axis Wind Turbine at low Reynolds numbers (part I: Static pressure measurement)

Energy ◽  
2016 ◽  
Vol 111 ◽  
pp. 701-712 ◽  
Author(s):  
Qing'an Li ◽  
Yasunari Kamada ◽  
Takao Maeda ◽  
Junsuke Murata ◽  
Yusuke Nishida
Keyword(s):  
Wind Turbine ◽  
Pressure Measurement ◽  
Static Pressure ◽  
Reynolds Numbers ◽  
Horizontal Axis ◽  
Horizontal Axis Wind Turbine ◽  
Low Reynolds Numbers ◽  
Low Reynolds

On Transition From Supersonic to Subsonic Flow at Low Reynolds Numbers in a Tube

1969 ◽  
Vol 36 (2) ◽  
pp. 146-150 ◽  
Author(s):  
R. Y. Chen ◽  
J. C. Williams
Keyword(s):  
Mach Number ◽  
Static Pressure ◽  
Subsonic Flow ◽  
Supersonic Nozzle ◽  
Reynolds Numbers ◽  
Impact Pressure ◽  
Low Reynolds Numbers ◽  
Pressure Distributions ◽  
Low Reynolds ◽  
The Impact

A supersonic low-density gas stream produced in a supersonic nozzle was passed through a circular tube in which the transition from supersonic to subsonic flow took place. Static pressure distributions along the tube (and nozzle) and impact pressure distributions across the tube at several stations were measured to determine the nature of this transition. The impact pressure distributions were used, together with the local static pressure, to infer Mach number and velocity profiles in the tube. When the pressure distributions and center-line Mach number distributions are considered together, one obtains a fairly clear picture of the processes involved in the transition from supersonic to subsonic flow at low Reynolds numbers.

Sign in / Sign up

Export Citation Format

Share Document