Author
A. J. Pisasale
Bio: A. J. Pisasale is an academic researcher from University of New South Wales. The author has contributed to research in topics: Wind tunnel & Calibration. The author has an hindex of 3, co-authored 3 publications receiving 148 citations.
Topics: Wind tunnel, Calibration
Papers
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TL;DR: In this paper, a method to extend this range by avoiding singularity is developed allowing calibration of a five-hole probe up to much larger angles of pitch and yaw, which can be successfully extended to angles of up to ±75°.
80 citations
TL;DR: In this paper, a functional relationship is developed, based on theoretical considerations, that relates the port pressure directly to the flow properties and details a procedure that enables flow properties to be determined from the measured pressures of the multihole probe.
Abstract: It is common in the calibration of multihole probes to curve-fit the calibration data in order to determine a relationship between measured port pressures and flow properties. The parameters used in these techniques typically lack a theoretical background. In this article, a functional relationship is developed, based on theoretical considerations, that relates the port pressure directly to the flow properties and details a procedure that enables flow properties to be determined from the measured pressures of the multihole probe. The method is simple, easy to implement and provides a better understanding of the multihole probe operation in a three-dimensional flow.
41 citations
TL;DR: In this article, a seven-hole pressure probe is rotated in yaw by 360 degrees and rules are formulated to determine if the probe is facing the right direction for data acquisition.
Abstract: Multihole pressure probes are frequently used to gather e ow data, sometimes in highly three-dimensional e ow. If the e ow is reversed, no method currently exists for determining whether the multihole probe is facing the right direction for data acquisition, and that the e ow is as such. A seven-hole probe is rotated in yaw by 360 deg, and rules are formulated to determine if a seven-hole probe is in a reversed e ow. The current study allows seven-hole probes to be used for gathering data in steady reversed e ows and gives an indication whether a pressure probe is insufe cient for the measurement instrument, as in the case of highly recirculating unsteady turbulent e ows. An application of the technique thus developed is also given.
38 citations
Cited by
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TL;DR: In this paper, the suitability of numerical approach in modelling various features of a ventilator flow was explored using the standard k-ɛ turbulence model with multiple reference frame (MRF) meshing technique.
54 citations
TL;DR: In this article, a study on an 80mm diameter sphere with localised synthetic jet orifices was conducted in an 18in×18-in open circuit closed test-section wind tunnel at a Reynolds number of 5×104.
53 citations
TL;DR: A review of existing and emerging wind power technologies in light of the evident trends of the industry, and describes the challenges these technologies will face if wind turbines were to become a significant and reliable source of clean energy of the future is presented in this paper.
Abstract: This paper presents a review of existing and emerging wind power technologies in light of the evident trends of the industry, and describes the challenges these technologies will face if wind turbines were to become a significant and reliable source of clean energy of the future. Apart from withstanding both the cost pressures against other forms of renewable and non-renewable technologies and the technical and design challenges for efficient and enhanced performance under all weather conditions, a major hurdle that must be overcome is to make the wind farms acceptable to the general public. Although there is now a greater awareness amongst world population about the perils of climate change, the issue of wind turbine generated noise, land use, fauna deaths and visual impacts have to be adequately addressed to ensure continued political and public support for the technology to flourish. These are the viewpoints against which emerging technologies are reviewed and the capacity of some of them to address these issues explored.
44 citations
TL;DR: In this paper, the authors investigated the effect of the inclination of the inclined roof on the performance of a turbine ventilator on a simulated rooftop and found that the effect is minimal in extracting air from a building at low wind speed.
42 citations
TL;DR: In this paper, a functional relationship is developed, based on theoretical considerations, that relates the port pressure directly to the flow properties and details a procedure that enables flow properties to be determined from the measured pressures of the multihole probe.
Abstract: It is common in the calibration of multihole probes to curve-fit the calibration data in order to determine a relationship between measured port pressures and flow properties. The parameters used in these techniques typically lack a theoretical background. In this article, a functional relationship is developed, based on theoretical considerations, that relates the port pressure directly to the flow properties and details a procedure that enables flow properties to be determined from the measured pressures of the multihole probe. The method is simple, easy to implement and provides a better understanding of the multihole probe operation in a three-dimensional flow.
41 citations