Author: John D. WarmbrodPublisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 28
Book Description
Theoretical and experimental study of unsteady flow processes in Ludwieg tube wind tunnels.
A Theoretical and Experimental Study of Unsteady Flow Processes in a Ludwieg Tube Wind Tunnel
Author: John D. WarmbrodPublisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 28
Book Description
Theoretical and experimental study of unsteady flow processes in Ludwieg tube wind tunnels.
A Theoretical and Experimental Study of Unsteady Flow Processes in a Ludwieg Tube Wind Tunnel
Author: John D. WarmbrodA Theoretical and Experiment Study of Unsteady Flow Processes in a Ludwig Tube Wind Tunnel
Author: John D. WarmbrodA Mathematical Model for the Starting Process of a Transonic Ludwieg Tube Wind Tunnel
Author: Frederick L. ShopePublisher:
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).
Monthly Catalogue, United States Public Documents
Author: Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1730
Book Description
Scientific and Technical Aerospace Reports
Author: Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1460
Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Monthly Catalog of United States Government Publications, Cumulative Index
Author: United States. Superintendent of DocumentsPublisher:
ISBN:
Category : United States
Languages : en
Pages : 1348
Book Description
Monthly Catalog of United States Government Publications
Author: United States. Superintendent of DocumentsPublisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1320
Book Description
Experimental Methods of Hypersonics
Author: J. LukasiewiczPublisher: New York : M. Dekker
ISBN:
Category : Science
Languages : en
Pages : 366
Book Description
Author: