Design, Sensing, and Control of a Scaled Wind Tunnel for Atmospheric Display

Creating wind within virtual environments (e.g., wind display) is a challenging problem with a potential to develop immersive atmospheric display for virtual reality systems. This paper describes synergistic mechatronics design, sensing, and control of a scaled active wind tunnel, which establishes a practical foundation for atmospheric display in virtual environments. Our approach combines numerical simulations and physical experiments in order to achieve geometric design of the physical system while simultaneously developing simplified control laws using limited sensing and computational resources. As experimental results indicate, several physical modifications and unique sensor and control law developments are necessary to achieve controlled wind flow in a physical system. These results validate system performance over a wide range of wind speeds and angles, which serves as a basis for future development of full-scale virtual reality systems with atmospheric display.

[1]  Tianyou Chai,et al.  A synthetic approach for control of intermittent wind tunnel , 1997, Proceedings of the 1997 American Control Conference (Cat. No.97CH36041).

[2]  Stephen W.D. Wolf.  Adaptive wall technology for improved wind tunnel testing techniques—A review , 1995 .

[3]  I. Grant.  Particle image velocimetry: A review , 1997 .

[4]  Richard Kirkman,et al.  Conceptual design of an adaptive wind tunnel for the generation of unsteady complex flow patterns , 2005 .

[5]  Mark A. Minor,et al.  Wind display device for locomotion interface in a virtual environment , 2009, World Haptics 2009 - Third Joint EuroHaptics conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems.

[6]  John M. Hollerbach,et al.  Harness Design and Coupling Stiffness for Two-Axis Torso Haptics , 2006, 2006 14th Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems.

[7]  Roger Temam,et al.  A general framework for robust control in fluid mechanics , 2000 .

[8]  Peter Willemsen,et al.  Integrating Particle Dispersion Models into Real-time Virtual Environments , 2008, IPT/EGVE.

[9]  Robert J. K. Jacob,et al.  The VR Scooter: Wind and Tactile Feedback Improve User Performance , 2006, 3D User Interfaces (3DUI'06).

[10]  Daniel Thalmann,et al.  Head Mounted Wind , 2007 .

[11]  K.M. Lynch,et al.  Mechanics and control of swimming: a review , 2004, IEEE Journal of Oceanic Engineering.

[12]  Richard G. J. Flay,et al.  A wind tunnel/full-scale comparison of the wind flow over Auckland City , 1995 .

[13]  Neff Walker,et al.  Evaluating the importance of multi-sensory input on memory and the sense of presence in virtual environments , 1999, Proceedings IEEE Virtual Reality (Cat. No. 99CB36316).

[14]  Y S J O S H I,et al.  A systems theory approach to the feedback stabilization of infinitesimal and finite-amplitude disturbances in plane Poiseuille flow , 1997 .

[15]  Eric R. Pardyjak,et al.  Sensitivity Analysis of a Three-Dimensional Wind Tunnel Design , 2006 .

[16]  R. D. Mehta,et al.  Design rules for small low speed wind tunnels , 1979, The Aeronautical Journal (1968).

[17]  James A. Sethian,et al.  Vortex methods and vortex motion , 1991 .

[18]  A.G. Alleyne,et al.  Modeling and control for smart Mesoflap aeroelastic control , 2004, IEEE/ASME Transactions on Mechatronics.

[19]  Mark A. Minor,et al.  Output Feedback Control of Wind Display in a Virtual Environment , 2007, Proceedings 2007 IEEE International Conference on Robotics and Automation.

[20]  S.K. Agrawal,et al.  Energetics-based design of small flapping-wing micro air vehicles , 2006, IEEE/ASME Transactions on Mechatronics.

[21]  Constantinos Mavroidis,et al.  Active Knee Rehabilitation Orthotic Device With Variable Damping Characteristics Implemented via an Electrorheological Fluid , 2010, IEEE/ASME Transactions on Mechatronics.

[22]  S. S. Davis.  Generalized adaptive-wall wind tunnels , 1985 .

[23]  Gerard Jounghyun Kim,et al.  Design and evaluation of a wind display for virtual reality , 2004, VRST '04.

[24]  Clarence W. Rowley,et al.  Active control of flow-induced cavity oscillations , 2008 .

[25]  Belinda B. King,et al.  Nonlinear dynamic compensator design for flow control in a driven cavity , 1995, Proceedings of 1995 34th IEEE Conference on Decision and Control.

[26]  Mark A. Minor,et al.  Steady headwind display with conditional angular rate-switching control , 2008, 2008 IEEE International Conference on Robotics and Automation.