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

Kulkarni, Sandip D.; Minor, Mark A.; Deaver, M.W.; Pardyjak, Eric R.; Hollerbach, John M.

doi:10.1109/tmech.2011.2113353

Cited by 20 publications

(19 citation statements)

References 24 publications

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“…We first developed a quarter-scale two-dimensional model of the TPAWT to prototype the design approach [6][7][8][9], based on computational fluid dynamics (CFD) models and control theory. Experimentation led to controller development for wind velocity at the user position and to understanding flow dynamics inside the TPAWT environment.…”

Section: Introductionmentioning

confidence: 99%

A Full Body Steerable Wind Display for a Locomotion Interface

Kulkarni

Fisher

Lefler³

et al. 2015

IEEE Trans. Visual. Comput. Graphics

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This paper presents the Treadport Active Wind Tunnel (TPAWT)-a full-body immersive virtual environment for the Treadport locomotion interface designed for generating wind on a user from any frontal direction at speeds up to 20 kph. The goal is to simulate the experience of realistic wind while walking in an outdoor virtual environment. A recirculating-type wind tunnel was created around the pre-existing Treadport installation by adding a large fan, ducting, and enclosure walls. Two sheets of air in a non-intrusive design flow along the side screens of the back-projection CAVE-like visual display, where they impinge and mix at the front screen to redirect towards the user in a full-body cross-section. By varying the flow conditions of the air sheets, the direction and speed of wind at the user are controlled. Design challenges to fit the wind tunnel in the pre-existing facility, and to manage turbulence to achieve stable and steerable flow, were overcome. The controller performance for wind speed and direction is demonstrated experimentally.

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Section: Introductionmentioning

confidence: 99%

A Full Body Steerable Wind Display for a Locomotion Interface

Kulkarni

Fisher

Lefler³

et al. 2015

IEEE Trans. Visual. Comput. Graphics

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“…This system consists of the integration of the TreadPort locomotion interface (Hollerbach et al 2000) with a wind tunnel for atmospheric display (Kulkarni et al 2009(Kulkarni et al , 2012. The TreadPort is composed by a CAVE-like visual interface, as well as a harness and a treadmill that provide accurate locomotion forces as a user walks through a virtual environment.…”

Section: Virtual Realitymentioning

confidence: 99%

Designing presence for real locomotion in immersive virtual environments: an affordance-based experiential approach

Turchet

2015

Virtual Reality

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This paper describes a framework for designing systems for real locomotion in virtual environments (VEs) in order to achieve an intense sense of presence. The main outcome of the present research is a list of design features that the virtual reality technology should have in order to achieve such a goal. To identify these features, an approach based on the combination of two design strategies was followed. The first was based on the theory of affordances and was utilized to design a generic VE in which the affordances of the corresponding real environment could be evoked. The second was the experiential design applied to VEs and was utilized to create an experience of locomotion corresponding to that achievable in a real environment. These design strategies were chosen because of their potential to enhance the sense of presence. The proposed list of features can be utilized as an instrument that allows VE designers to evaluate the maturity of their systems and to pinpoint directions for future developments. A survey analysis was performed using the proposed framework, which involved three case studies to determine how many features of the proposed framework were present and their status. The result of such analysis represented a measure of the completeness of the systems design, of the affordances provided to the user, and a prediction of the sense of presence.

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“…Also, games provide greater entertainment than any other cultural content and bring in more profit than any other cultural content. This refers to not only nominal returns but investment returns and profits 5. Conclusion PC Games Genre s are comprised of the action, adventure, shooter (gun shooting, etc.…”

Section: Countermeasures For Virtual Realitymentioning

confidence: 99%