Experimental and Numerical Investigations of a Transverse Jet Interaction on a Missile Body

Gnemmi, Patrick; Schäfer, Hans J.

doi:10.2514/6.2005-52

Cited by 32 publications

(36 citation statements)

References 10 publications

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“…They have shorter response times and are effective at low dynamic pressures. Conventional surfaces may lack control authority, though the flow structure is very complex, and the control efficiency is difficult to predict due to the interaction of the jet with the external cross flow [10][11][12][13][14][15][16][17] . The Ares I RoCS are located near the rear of the interstage, forward of the forward frustrum as shown in Fig.…”

Section: Vehicle and System Descriptionmentioning

confidence: 99%

“…Jet interaction literature focuses on the jet efficiency terms in forces and moments [10][11][12][13][14][15][16][17] . The jet interaction rolling moment coefficient is calculated in Eq.…”

Section: Selection Of the Response Variablementioning

confidence: 99%

“…Jet interaction research has been performed on jets acting normal to cylindrical bodies and flat plates [10][11][12][13][14][15][16][17] . This type of research most commonly investigates normal force and pitching moment effectiveness for abrupt control changes, while the current study characterizes tangential jet interactions.…”

Section: Introductionmentioning

confidence: 99%

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Advanced Response Surface Modeling of Ares I Roll Control Jet Aerodynamic Interactions

Favaregh

2010

27th AIAA Aerodynamic Measurement Technology and Ground Testing Conference

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The Ares I rocket uses roll control jets. These jets have aerodynamic implications as they impinge on the surface and protuberances of the vehicle. The jet interaction on the body can cause an amplification or a reduction of the rolling moment produced by the jet itself, either increasing the jet effectiveness or creating an adverse effect. A design of experiments test was planned and carried out using computation fluid dynamics, and a subsequent response surface analysis ensued on the available data to characterize the jet interaction across the ascent portion of the Ares I flight envelope. Four response surface schemes were compared including a single response surface covering the entire design space, separate sector responses that did not overlap, continuously overlapping surfaces, and recursive weighted response surfaces. These surfaces were evaluated on traditional statistical metrics as well as visual inspection. Validation of the recursive weighted response surface was performed using additionally available data at off-design point locations.

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Section: Vehicle and System Descriptionmentioning

confidence: 99%

“…Jet interaction literature focuses on the jet efficiency terms in forces and moments [10][11][12][13][14][15][16][17] . The jet interaction rolling moment coefficient is calculated in Eq.…”

Section: Selection Of the Response Variablementioning

confidence: 99%

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Advanced Response Surface Modeling of Ares I Roll Control Jet Aerodynamic Interactions

Favaregh

2010

27th AIAA Aerodynamic Measurement Technology and Ground Testing Conference

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“…This pressure imbalance can be produced by the deployment of control surfaces Dupuis et al, 2004;Srulijes et al, 2004;Patel et al, 2002;Silton, 2004;Massey et al, 2004) or by the use of one or more pyrotechnical mechanisms judiciously distributed along the vehicle (Gnemmi & Seiler, 2000;Schäfer et al, 2001;Seiler et al, 2003;Gnemmi & Schäfer, 2005;Havermann et al, 2005;Yamanaka & Tanaka, 1996). In the case of supersonic projectiles, the major drawback to using the surface spreading technique is that large forces are involved i n t h e d e p l o y m e n t o f s u rf a c e s i n o r d e r t o overcome the very high pressures encountered at high velocities.…”

Section: Introductionmentioning

confidence: 99%

Guidance of a Supersonic Projectile by a Plasma-Actuation Concept

Gnemmi¹,

Rey²

2011

Wind Tunnels and Experimental Fluid Dynamics Research

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“…Certainly, the ability to compare computational results with experimental data would be ideal, but no experimental data was available. The authors used as references a number of recent publications for other control jet interaction studies [6][7][8][9] of other missile reaction control systems analyses or experimental measurements.…”

Section: Introductionmentioning

confidence: 99%

Establishing Approaches to Modeling the Ares I-X and Ares I Roll Control System with Free-Stream Interaction

Pao

Deere

Abdol-Hamid

2011

49th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition

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Approaches were established for modeling the roll control system and analyzing the jet interactions of the activated roll control system on Ares-type configurations using the USM3D Navier-Stokes solver. Components of the modeling approach for the roll control system include a choice of turbulence models, basis for computing a dynamic equivalence of the real gas rocket exhaust flow in terms of an ideal gas, and techniques to evaluate roll control system performance for wind tunnel and flight conditions. A simplified Ares I-X configuration was used during the development phase of the roll control system modeling approach. A limited set of Navier-Stokes solutions was obtained for the purposes of this investigation and highlights of the results are included in this paper. The USM3D solutions were compared to equivalent solutions at select flow conditions from a real gas NavierStokes solver (Loci-CHEM) and a structured overset grid Navier-Stokes solver (OVERFLOW). NomenclatureA e = thruster exit area, in.

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Experimental and Numerical Investigations of a Transverse Jet Interaction on a Missile Body

Cited by 32 publications

References 10 publications

Advanced Response Surface Modeling of Ares I Roll Control Jet Aerodynamic Interactions

Advanced Response Surface Modeling of Ares I Roll Control Jet Aerodynamic Interactions

Guidance of a Supersonic Projectile by a Plasma-Actuation Concept

Establishing Approaches to Modeling the Ares I-X and Ares I Roll Control System with Free-Stream Interaction

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