Calculation of viscous supersonic flows over finned bodies

M., M.; Chaussee, D. S.; Rizk, Yehia M.

doi:10.2514/6.1983-1667

Cited by 20 publications

(4 citation statements)

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“…Over the axisymmetric portion of the body, the grid was generated algebraically. On the non-conical portion and finned portion of the body, the grid was obtained using an elliptic grid generator [9]. A complete computation for each configuration required approximately 2 hr of computer processor unit (CPU) time on a Cray C-90 supercomputer.…”

Section: A$ An Ac Re Asmentioning

confidence: 99%

Effect of Body Cross Section on Projectile Aerodynamic Performance With Application to Electromagnetic (EM) Guns

Weinacht¹

2001

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The most effective bore cross-section geometry for electromagnetic (EM) guns may differ significantly from the circular cross section of conventional guns. The geometry of the bore cross section will influence the shape of the armature/subprojectile launch package. For certain applications, a noncircular cross section may provide payload packaging benefits which have not been considered previously for conventional circular cross-section guns. Whether these benefits can be fully realized depends, in part, on the aerodynamic performance of these geometries in free flight. The current study considers the aerodynamics of chemical energy (CE)-type munitions to determine whether there are potential aerodynamic benefits for noncircular cross-section geometries compared with conventional circular cross-section bodies. The study compares the aerodynamic drag and static stability of both circular and noncircular geometries using sophisticated computational aerodynamic predictive tools to determine the potential aerodynamic benefits.

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Section: A$ An Ac Re Asmentioning

confidence: 99%

Effect of Body Cross Section on Projectile Aerodynamic Performance With Application to Electromagnetic (EM) Guns

Weinacht¹

2001

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“…An elliptic gr~d generator of the type developed by Steger and Sorenson [13] and further specialized to w~ng bodies by Ra~ et al [10] ~s used to generate the grid for the calculat~ons.…”

Section: Computational Techniquementioning

confidence: 99%

“…Obtainment of these results requires the use of two computer codes. A PNS code [9,10] is used to 'obta1n the solut10n up to the bow-shock/wing-shock interact10n region, and an unsteady continuation code is used for the region after the shock 1nteraction. The unsteady Navier-Stokes code [11] 1S also used to obtain the blunt-body starting solution.…”

Section: Introduction Viscous Computation Of a Space Shuttle Flow mentioning

confidence: 99%

Viscous computation of a space shuttle flow field

Chaussee

Rizk

Buning

Ninth International Conference on Numerical Methods in Fluid Dynamics

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“…The stability of the marching scheme was considerably improved byRai and Chaussee Reference[5] to fit the bow shock. They also gave the code an additional capability of using cylindrical coordinates as the base coordinate system which makes the code more accurate and efficient when applied to conical bodies.…”

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confidence: 99%

Non-isentropic effects on the WRDC 20 inch hypersonic wind tunnel calibration

Buck¹,

Draper²

International Congress on Instrumentation in Aerospace Simulation Facilitie

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ability to calibrate wind tunnel flows is of increasing importance. Even small errors in Mach An experiment was conducted in the 20" number cannot be tolerated. hypersonic wind tunnel to assess non-isentropic Reference [ l ] concludes that hypersonic wind effects on the test section Mach number. Prestunnels operating above Mach 8 are likely to have sure measurements were made on a blunt 5" cone. These pressures were then compared with a Parabolized Navier-Stokes code to define the freestream Mach number. The results indicate that the non-isentropic effects are not significant.

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Calculation of viscous supersonic flows over finned bodies

Cited by 20 publications

References 0 publications

Effect of Body Cross Section on Projectile Aerodynamic Performance With Application to Electromagnetic (EM) Guns

Effect of Body Cross Section on Projectile Aerodynamic Performance With Application to Electromagnetic (EM) Guns

Viscous computation of a space shuttle flow field

Non-isentropic effects on the WRDC 20 inch hypersonic wind tunnel calibration

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