SelectedWorks - Doug Hunsaker

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Selected Works of Doug Hunsaker

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About Doug Hunsaker

Present	Faculty Member, Utah State University ‐ Mechanical and Aerospace Engineering Department
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Engineering and Mechanical Engineering

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Articles (1)

Article

Multifidelity Comparison of Supersonic Wave Drag Prediction Methods Using Axisymmetric ...

Aerospace (2024)

Troy Abraham, David Lazzara and Douglas Hunsaker

Low-fidelity analytic and computational wave drag prediction methods assume linear aerodynamics and small perturbations to the flow. Hence, these methods ...

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Article

Stick-Fixed Maneuver Points in Roll, Pitch, and Yaw and Associated ...

AIAA SciTech 2024 Forum (2024)

Benjamin C. Moulton, Troy A. Abraham and Douglas F. Hunsaker

The stick-fixed pitch maneuver point is an important measure of aircraft longitudinal dynamic response and handling quality characteristics, and includes ...

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Presentation

Simplified Mass and Inertial Estimates for Aircraft with Components of ...

AIAA SciTech Forum (2023)

Benjamin C. Moulton and Douglas F. Hunsaker

Aircraft mass and inertial properties are required for predicting the dynamics and handling qualities of aircraft. However, such properties can ...

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Article

Attainable Moment Set and Actuation Time of a Bio-Inspired Rotating ...

AIAA SCITECH 2022 Forum (2022)

Christian R. Bolander, Douglas F. Hunsaker, David Myszka and James J. Joo

Future tactical aircraft will likely demonstrate improvements in efficiency, weight, and control by implementing bio-inspired control systems. This work analyzes ...

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Article

3D-Printed Wings with Morphing Trailing-Edge Technology

AIAA Scitech Forum Virtual Event (2021)

Benjamin C. Moulton and Douglas F. Hunsaker

In recent years, various groups have attempted to improve aircraft efficiency using wings with morphing trailing-edge technology. Most of these ...

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Article

Practical Implementation of a General Numerical Lifting-Line Method

AIAA Scitech 2021 Forum (2021)

Cory D. Goates and Douglas F. Hunsaker

A general numerical lifting-line method provides corrections to overcome the singularities inherent in the lifting-line downwash integrals in certain cases. ...

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Article

Minimising Induced Drag with Weight Distribution, Lift Distribution, Wingspan, and ...

The Aeronautical Journal (2020)

Warren F. Phillips, Douglas F. Hunsaker and Jeffrey D. Taylor

Because the wing-structure weight required to support the critical wing section bending moments is a function of wingspan, net weight, ...

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Article

Minimum Induced Drag for Tapered Wings Including Structural Constraints

Journal of Aircraft (2020)

Jeffrey D. Taylor and Douglas F. Hunsaker

LIFTING-LINE theory [1,2] is the foundation for much of our understanding of finite-wing aerodynamics. Solutions based on lifting-line theory are ...

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Article

Numerical Method for Rapid Aerostructural Design and Optimization

AIAA 2020-3175, AIAA Aviation 2020 Forum (2020)

Jeffrey D. Taylor and Douglas F. Hunsaker

During early phases of wing design, analytic and low-fidelity methods are often used to identify promising design concepts. In many ...

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Article

Identifying Optimal Equivalent Area Changes to Reduce Sonic Boom Loudness

AIAA Scitech Forum (2020)

Troy Abraham, Douglas F. Hunsaker, Jonathan M. Weaver-Rosen and Richard J. Malak

This work explores the design space created from modeling the effect of localized geometric changes on a supersonic aircraft’s near-field ...

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Article

Propulsion Theory of Flapping Airfoils, Comparison with Computational Fluid Dynamics

Journal of Aircraft (2016)

Doug F. Hunsaker and W. F. Phillips

It is shown that the time-dependent aerodynamic forces acting on a flapping airfoil in forward flight are functions of both ...

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Presentation

A Fundamental Approach to Modeling Flapping Flight

Navy Research Laboratory (2015)

Doug F. Hunsaker

A viable approach to the modeling and development of efficient flapping-flight unmanned systems.

Other

Propulsion Theory of Flapping Airfoils, Comparison with Computational Fluid Dynamics

53rd AIAA Aerospace Sciences Meeting (2015)

Doug F. Hunsaker and W. F. Phillips

The thrust, required power, and propulsive efficiency of a flapping airfoil as predicted by the well-known Theodorsen model are compared ...

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Presentation

Optimization of Flapping-Flight Using Numerical Lifting-Line Analysis

Army Research Laboratory (2014)

Doug F. Hunsaker

Progress in modeling and optimization of efficient flapping-flight aircraft.

Other

Lifting-Line Predictions for Induced Drag and Lift in Ground Effect

Journal of Aircraft (2013)

W. F. Phillips and Doug F. Hunsaker

Closed-form relations are presented for estimating ratios of the induced-drag and lift coefficients acting on a wing in ground effect ...

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Presentation

Perspectives on UAV Airframe Design

Small Unmanned Systems Business Expo (2013)

Doug F. Hunsaker

A perspective on how unmanned airframes may be efficiently and quickly developed as the UAV industry grows.

Other

Decomposed Lifting-Line Predictions and Optimization for Propulsive Efficiency of Flapping ...

31st AIAA Applied Aerodynamics Conference (2013)

W. F. Phillips, R. A. Miller and Doug F. Hunsaker

A decomposed Fourier series solution to Prandtl's classical lifting-line theory is used to predict the lift, induced-thrust, and power coefficients ...

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Article

Lifting-Line Predictions for Induced Drag and Lift in Ground Effect

31st AIAA Applied Aerodynamics Conference (2013)

W. F. Phillips and Doug F. Hunsaker

Closed-form relations are presented for estimating ratios of the induced-drag and lift coefficients acting on a wing in ground effect ...

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Other

Momentum Theory with Slipstream Rotation Applied to Wind Turbines

31st AIAA Applied Aerodynamics Conference (2013)

Doug F. Hunsaker and W. F. Phillips

A momentum theory which includes the effects of slipstream rotation for wind turbines is presented. The theory accounts for the ...

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Article

Energy-Vorticity Turbulence Model with Application to Flow near Rough Surfaces

AIAA Journal (2013)

W. F. Phillips, E. B. Fowler and Doug F. Hunsaker

Based on a more direct analogy between turbulent and molecular transport, a foundation is presented for an energy–vorticity turbulence model. ...

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Other

Application of an Energy-Vorticity Turbulence Model to Fully rough Pipe ...

42nd AIAAFluid Dynamics Conference and Exhibit (2012)

E. B. Fowler, Doug F. Hunsaker and W. F. Phillips

Based on a more direct analogy between turbulent and molecular transport, a foundation was recently presented for an energy-vorticity turbulence ...

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Dissertation

Evaluation of an Incompressible Energy-Vorticity Turbulence Model for Fully Rough ...

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023 (2011)

Doug F. Hunsaker

Traditional methods of closing the Boussinesq-based Reynolds-averaged Navier-Stokes equations are considered, and suggestions for improving two-equation turbulence models are made. ...

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Article

A Numerical Lifting-Line Method Using Horseshoe Vortex Sheets

Utah Space Grant Consortium (2011)

Doug Hunsaker and Warren F. Phillips

A numerical method based on the original lifting line theory of Prandtl is developed which includes the influence of horseshoe ...

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Other

A Numerical Lifting-Line Method Using Horseshoe Vortex Sheets

Rocky Mountain Space Grant Consortium Meeting Proceedings (2011)

Doug F. Hunsaker

A numerical method based on the original lifting- line theory of Prandtl is developed which includes the influence of horseshoe ...

Article

A One-Dimensional Finite-Difference Solver for Fully-Developed Pipe and Channel Flows

Utah Space Grant Consortium (2010)

Doug F. Hunsaker

An algorithm is developed to solve the fundamental flow cases of fully-developed turbulent flow in a pipe and in a ...

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Articles (1)

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Mechanical Engineering (40)