Aerodynamic Data of Space Vehicles

Weiland, Claus

doi:10.1007/978-3-642-54168-1

Cited by 35 publications

(11 citation statements)

References 9 publications

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“…To date there are only two servicing HVs, namely, the X-37 and the Soyuz spacecrafts. As discussed before, the former is a US unmanned reentry spacecraft (winged-body) close to the Space Shuttle, while the latter is the only human-rated capsule operated by Russian Federation [9,27,28].…”

Section: Present Developmentsmentioning

confidence: 99%

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Introductory Chapter: Hypersonic Vehicles - Past, Present, and Future Insights

Viviani¹,

Pezzella²

2019

Hypersonic Vehicles - Past, Present and Future Developments

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Section: Present Developmentsmentioning

confidence: 99%

“…It features solar panels attached and contains the instruments and engines. Finally, the RM is a small capsule which returns the crew to Earth [27,28].…”

Section: Present Developmentsmentioning

confidence: 99%

Introductory Chapter: Hypersonic Vehicles - Past, Present, and Future Insights

Viviani¹,

Pezzella²

2019

Hypersonic Vehicles - Past, Present and Future Developments

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“…After the early development phase, the OREX vehicle flew successfully in 1994 and provided important aerothermal data (wall temperatures and heat transfer rates) for the design of the TPS for HOPE. 152 The OREX was followed by the Hypersonic Flight Experiment or HYFLEX, an unpowered lifting body that resembled the original HOPE-X configuration, unlike the conical OREX. The main objective of the HYFLEX was to explore guidance and control aspects of a lifting body and to utilize the aerothermal data from OREX by testing the TPS materials and structures.…”

Section: B Lrv Efforts In Japanmentioning

confidence: 99%

Design Evolution and AHP-based Historiography of Lifting Reentry Vehicle Space Programs

Rana

Chudoba

2016

Aiaa Space 2016

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The term "Historiography" is defined as the writing of history based on the critical examination of sources. In the context of space access systems, a considerable body of literature has been published addressing the history of lifting-reentry vehicle(LRV) research. Many technical papers and books have surveyed legacy research case studies, technology development projects and vehicle development programs to document the evolution of hypersonic vehicle design knowledge gained from the early 1950s onwards. However, these accounts tend to be subjective and qualitative in their discussion of the significance and level of progress made. Even though the information addressed in these surveys is considered crucial, it may lack qualitative or quantitative organization for consistently measuring the contribution of an individual program.The goal of this study is to provide an anatomy aimed at addressing and quantifying the contribution of legacy programs towards the evolution of the hypersonic knowledge base. This paper applies quantified analysis to legacy lifting-reentry vehicle programs, aimed at comprehensively capturing the evolution of LRV hypersonic knowledge base. Beginning with an overview of literature surveys focusing on hypersonic research programs, a comprehensive list of LRV programs, starting from the 1933 Silvervogel to the 2015 Dream Chaser, is assembled. These case-studies are assessed on the basis of contribution made towards major hypersonic disciplines. The Analytical Hierarchy Process (AHP) is used to develop an analytical model, to quantify and measure the strength and weakness of primary disciplines for every case-study. Sixty national and international case-studies are evaluated based on one system-level and five discipline-based criteria addressing aerothermodynamics, structure & materials, propulsion, thermal, and sub-system contributions. The AHP model allows a comparative assessment among the case-studies based on quantitative results, which identify a case-studys value and contribution for the growth of the primary disciplines, and the evolution of the overall hypersonic knowledge base. This analysis is further supported by an overview of the case-studies accessed, providing a brief description of LRV research history. An evolutionary pattern among the case-studies is recognized, demonstrating common aspects and influences of major programs throughout history.

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“…Chen et al [21] have carried out numerical simulations of flowfield for aerodynamic design of reentry capsules. Weiland [22] has presented aerodynamic characteristics of several non-winged capsules. Effects of geometrical parameters over fore-body of various reentry vehicles have been numerically investigated at high speeds [23,24].…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Base Pressure and Drag of Space Reentry Capsules at High Speed

Mehta¹

2019

Hypersonic Vehicles - Past, Present and Future Developments

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The numerical simulations over several reentry vehicles are carried out by solving time-dependent compressible laminar axisymmetric Navier-Stokes equations for Mach 1.2-6.0. The fluid dynamics equations are discretized in spatial coordinates using integral formulation in conjunction with a finite volume method which reduce to semi-discretized ordinary differential equations. A local time-step is used to achieve steady-state solution. The numerical computation is carried out on a single-block structured computational grid. The flowfield features over the reentry vehicle such as formation of a bow shock wave ahead of the fore-body, expansion fan on the shoulder, and recirculation zone in the base region are well captured in the numerical simulations. Lower pressure acting on the base of the reentry capsule acts as base drag. The base drag coefficient based on maximum cross-section of the reentry capsule must satisfy inequality. The base drag coefficient is a function of several geometrical parameters of the fore-body and back-shell of reentry capsule, boundary layer, formation of free-shear layer in the wake region and freestream Mach number. The purpose of this chapter is to numerically evaluate and tabulate the base pressure and the base drag coefficients of various reentry space capsules at zero angle of incidence.Keywords: aerodynamic, base drag, CFD, high speed flow, viscous flow, reentry vehicle, shock wave Present and Future Developments Numerical Simulation of Base Pressure and Drag of Space Reentry Capsules at High Speed DOI: http://dx.doi.org/10.5772/intechopen.83651 the axisymmetric laminar compressible Navier-Stokes equations on a single-block structured grid, i.e., the number of grid points in the radial direction in each zone of the computational region is same. Surface pressure variations over the vehicles are computed which reveal a systematic understanding of the flow features over the capsule at high speeds. It also reveals the effect of geometrical parameters on aerodynamic base drag coefficient. The unsteady flow characteristics of the OREX and the Beagle-2 are analyzed in Ref. [28].

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Aerodynamic Data of Space Vehicles

Cited by 35 publications

References 9 publications

Introductory Chapter: Hypersonic Vehicles - Past, Present, and Future Insights

Introductory Chapter: Hypersonic Vehicles - Past, Present, and Future Insights

Design Evolution and AHP-based Historiography of Lifting Reentry Vehicle Space Programs

Numerical Simulation of Base Pressure and Drag of Space Reentry Capsules at High Speed

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