Author: Frederick L. Shope
Publisher:
ISBN:
Category :
Languages : en
Pages : 138
Book Description
A simplified mathematical model is presented for the unsteady flow process of starting a transonic Ludwieg tube wind tunnel. The hardware modeled consists of a porous-walled test section surrounded by a plenum chamber with an exhaust system independent of the tunnel's main starting valves, which are located downstream of the diffuser-test section. In the present method, the hardware is modeled as three control volumes: the plenum, the test section, and the diffuser. The plenum is treated with the unsteady integral continuity equation with one-dimensional influx or outflux through the porous wall, through the plenum exhaust system, and through the flaps, which exhaust into the diffuser. The other two control volumes are treated with the steady integral continuity equation and a steady, adiabatic, one-dimensional energy equation whose stagnation conditions vary in time according to the classical solution for an unsteady expansion wave. Numerical solutions are compared with experimental pressure-time histories of a small, transonic, high Reynolds number tunnel referred to as HIRT. Agreement between the model and experiment is good. (Author).
A Mathematical Model for the Starting Process of a Transonic Ludwieg Tube Wind Tunnel
A Theoretical and Experimental Study of Unsteady Flow Processes in a Ludwieg Tube Wind Tunnel
Author: John D. Warmbrod
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 28
Book Description
Theoretical and experimental study of unsteady flow processes in Ludwieg tube wind tunnels.
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 28
Book Description
Theoretical and experimental study of unsteady flow processes in Ludwieg tube wind tunnels.
Scientific and Technical Aerospace Reports
Transactions of the Japan Society for Aeronautical and Space Sciences
Author: Nihon Kōkū Uchū Gakkai
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 790
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 790
Book Description
Project Study of a Large European Transonic Ludwieg Tube Wind Tunnel
Journal of Hydronautics
Author:
Publisher:
ISBN:
Category : Hydrofoil boats
Languages : en
Pages : 232
Book Description
A publication of the American Institute of Aeronautics and Astronautics devoted to marine science and technology.
Publisher:
ISBN:
Category : Hydrofoil boats
Languages : en
Pages : 232
Book Description
A publication of the American Institute of Aeronautics and Astronautics devoted to marine science and technology.
Publications of the AIAA.
Author: American Institute of Aeronautics and Astronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 470
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 470
Book Description
Journal of Aircraft
Development and Calibration of the UTA Ludwieg Tube Type Transonic Wind Tunnel
Author: Shyan-Yih Chou
Publisher:
ISBN:
Category : Transonic wind tunnels
Languages : en
Pages : 230
Book Description
Publisher:
ISBN:
Category : Transonic wind tunnels
Languages : en
Pages : 230
Book Description