Aerodynamic Data of Space Vehicles by Claus Weiland

By Claus Weiland

The ability and caliber of the atmospheric flight functionality of area flight automobiles is characterised by means of their aerodynamic facts bases. a whole aerodynamic information base might surround the coefficients of the static longitudinal and lateral motions and the comparable dynamic coefficients.

In this ebook the aerodynamics of 27 autos are thought of. just a couple of of them did quite fly. consequently the aerodynamic info bases are frequently no longer entire, specifically whilst the tasks or courses have been roughly without warning stopped, frequently as a result of political judgements. Configurational layout stories or the improvement of demonstrators
usually occur with diminished or incomplete aerodynamic info units. as a result a few facts units base simply at the program of 1 of the next instruments: semi-empirical layout equipment, wind tunnel checks, numerical simulations. In to this point a excessive percent of the knowledge offered is incomplete and must be verified.

Flight mechanics wishes the aerodynamic coefficients as functionality of loads of variables. The allocation of the aerodynamic coefficients for a selected flight operation at a particular trajectory element is carried out through an aerodynamic version. The institution of such types is defined during this book.

This booklet is written for graduate and doctoral scholars to provide them perception into the aerodynamics of many of the flight configurations. extra for layout and improvement engineers in and at learn institutes (including universities) looking for a suitable car form, in addition to for non-specialists, who should be in
this topic. The e-book should be important, too, within the case that approach experiences require of their notion stages the choice of compatible motor vehicle shapes.

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Springer, Heidelberg (2010) 5. : Dynamics of Atmospheric Flight. John Wiley & Sons, New York (1972) 6. : Flugregelung. Springer, Heidelberg (2001) ¨ 7. : Aerodynamische Datens¨ atze f¨ ur die Konfiguration SANGER 4-92. Deutsche Aerospace, DASA-LME211-TN-HYPAC-290 (1992) 8. : Dassault preliminary ADB in Gemass Format, Formulation and Description. Industrial Communication (1998) 9. : Experimental and Numerical Aerodynamic Data Integration and Aerodatabase Development for the PRORA-USV-FTB-1 Reusable Vehicle.

26 3 Classification and Project Data of Space Vehicles Descent and landing: After flying along a ballistic or low L/D entry trajectory the final deceleration takes place by parachute systems either in water or on ground. 2. • United States flight project, • several vehicles were developed and manufactured, • lunar missions, APOLLO project, • flown during 1966 - 1973, • aerodynamic data of steady longitudinal motion available, • axisymmetric shape, • dynamic stability data available. Fig. 1. Non-winged re-entry vehicle Details of aerodynamics: page 43 ff.

During the design of APOLLO, most of the aerodynamic data was obtained from wind tunnel tests, [3] - [7]. Due to the trim behavior of the APOLLO capsule its nominal angle of attack regime is placed between −30◦ < α < 0◦ . In this regime the aft part of the capsule configuration lies in the “hypersonic shadow” of the flow. The term “hypersonic shadow” is used in analogy to Newton’s method for hypersonic flows. , [8]. Of course, this is not completely true for realistic flows, but the experience says that in hypersonic flow the contributions of such surface elements are indeed rather low.

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